So that race may not have been a thriller, but there was plenty to get people chatting.
McLaren's miserable day, Fernando Alonso's radio rant, the dreaded "lift and coast" messages, and at the end of it all a fourth win of the season and an extended championship lead for Lewis Hamilton.
5. Damon Hill, 1,358 lapsImage caption: 5. Damon Hill, 1,358 laps
Get involved - #bbcf1
Graham Stokes: The cars need to race closer, change the aero make them run with max fuel, remove the plank and alter the front wing.
Peter Meijering: There is more on-course overtaking in World Rally Championship. F1 is supposed to be a sprint race! Less $, more racing.
Ross Green: Get rid of fuel limiting! Bring in budget capping! Scrap DRS & give turbo to cars further down grid. And provide better tyre compounds.
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Romain Grosjean on Twitter: Sorry for my team as I made a mistake today and lost some good points... But a lot of positives for the Austrian GP.
Fuel saving is 'frustrating' - Hamilton
Lewis Hamilton, P1, speaking to BBC Sport: "It is going incredibly well. This team has helped me live my dream. Every race win is a different feeling.
"My lead engineer lost a family member this weekend and to come here and perform like he has has been amazing. I take my hat off to him."
On saving fuel: Definitely frustrating to have to lift and coast. If you had to be pushing, pushing the whole way... You remember what it was like. These days physically I wasn't suffering too much.
"If you had fuel stops - like they are hopefully going to do - you could push the whole race."
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Lewis meets the fans
Lewis Hamilton has enjoyed a really warm reception from a lot of fans who have stayed behind after the race.
Pop stars, footballers and F1 drivers. They have that effect.
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Ferrari on Twitter: Maurizio Arrivabene: We slipped off the podium this time but we are still second best.
Heads down at Red Bull
Tom Clarkson
BBC F1 pit-lane reporter
The debrief begins for Ricciardo. Here he expresses his frustrations to Christian Horner, Helmut Marko etc.
Tom ClarksonCopyright: Tom Clarkson
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Cue the Smedders fan club...
Colin Bowett: Rob Smedley = Legend!
Jessica: Yayyyyy Rob!
lillyloo: #swoon
James Matthews: Good gracious, Rob Smedley brings the heat.
SusieAH: Yep I'm here! Fan-girling at its finest whit whoooo
Mercedes celebrate their one-two
Contrasting outfits from the two drivers it's fair to say.
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Rosberg looks to gain a sneaky advantage
Nico Rosberg, P2: "I have an electrical power boost for two laps to see if I can attack him, but of course as soon as I do that his engineer tells him and he will do the same. I think I will have to have a word with the team and see if we can keep it a secret.
"I have one option, which could be to be fully depressed, but I have chosen to keep a smile on, because second place is not the end of the world."
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'Fernando believes in us'
McLaren's chief operating officer Jonathan Neale talking to BBC Sport: "We know that Fernando has a car he can drive but, yes, we need to get more performance. He knows and believes in the things we have coming in the pipeline.
"We have to take it on the chin. We have made up two-and-a-half seconds a lap since the start of the season, but we are still two seconds behind."
Get involved - Jonathan Neale interview #bbcf1
A lot of you have reacted very positively to Jonathan Neale's stout defence of McLaren over on our red button coverage.
Phillippa Gillett: So nice to hear McLaren's Jonathan Neale being very honest about the problems McLaren are facing.
James Greatbanks: Best part of the Canadian GP is definitely that interview.
Ben Malone: As a McLaren fan hearing Jonathan Neale speak from the hip was brilliant. Honesty wins.
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Be still my beating heart
Smokin' Smedders is on the screen.
An avalanche of love will land at #bbcf1 shortly.
We'll keep you posted.
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'We have to be independent'
McLaren's chief operating officer Jonathan Neale talking to BBC Sport: "If we'd stayed with Mercedes, there is not a cat in hell's chance we would have beaten them. I love Toto Wolff and Paddy Lowe like a brother but they are not going to share data with us.
"We have to be independent. We are going to fight this as a team. The only way back to championships is with an independent.
"Honda have done a great job in a short period of time."
'We should let Fernando get on with it'
McLaren's chief operating officer Jonathan Neale talking to BBC Sport: "Actually I agree with Fernando [about his response to the engineer on the team radio]. The drivers are trying to manage the race.
"Fernando is the guy on the circuit trying to get the job done. We should let him get on with it. When we looked at the data afterwards, he could have got the car home."
Get involved - #bbcf1
Ryan: F1 was at its best when the FIA didn't try and push the spectacle like in 2006-2008. This approach must re-appear to improve.
Longhaul Tyke: Do we really have to wait until 2017 for cars that will allow REAL racing? Lift and coast!!
Kate Green: When there is more discussion about an on track rodent than the racing, the sport of F1 is crying for a shake up!
Christopher Foxon: Budget caps will level the playing field and lead to closer racing. Mercedes too far ahead. Financial Fair Play needed. Boring race!
Stephen Cleaver: A way to improve competitiveness is INVERT the FIA PRIZE MONEY so 1st place gets the LEAST money not the MOST!
'I'm laughing because I don't want to cry' - Ricciardo
Red Bull's Daniel Ricciardo (P13) talking to BBC Sport's Lee McKenzie: "I got lapped by a Williams - that explains my day. It was our worst weekend of the year. We have got to understand it but I don't have any answers. I'm laughing because I don't want to cry."
Ideas to make F1 more entertaining #287
Everyone get drunk first.
Not the drivers, of course.
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Get involved - #bbcf1
James Matthews: I almost want to see some Red Bull-style outbursts from McLaren. Repeating the same PR soundbites every weekend sounds so defeatist.
Jamie Lee: Eddie Jordan is spot on with McLaren, something needs to change at a once great team! They have the drivers, not the car.
David Dalton: Honda, Ferrari and Renault engines just aren't cutting it, do we need a new engine supplier? Toyota back?
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Fernando Alonso on Twitter: Jenson Button... Is this a bit better..? Well, probably depends upon how you look at it.
Fernando AlonsoCopyright: Fernando Alonso
Constructors' standings after seven rounds
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Drivers' standings after seven rounds
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'Weak' performance from McLaren - Button
McLaren's Jenson Button talking to BBC Sport's Lee McKenzie: "It's a difficult balance [focusing on reliability and improving the car]. We were weak in both areas this weekend. Hopefully we can solve these issues in two weeks."
More on McLaren's plight
Eddie Jordan
BBC F1 chief analyst
"There have to be major changes in the top management of McLaren.
"Ron Dennis has to look at himself and ask 'What is happening on my stewardship?' It was never as bad as this under Martin Whitmarsh."
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David Coulthard
BBC F1 co-commentator
"Fuel saving, let's get rid of that. It's like battery anxiety in your mobile phone."
Wolff defends 'lift and coast' messages
Mercedes team boss Toto Wolff on the calls to "lift and coast": "It is a fine margin we have. We want them to compete against each other, so you need to watch the brakes and the fuel consumption and this is the fine line we need to walk on.
"You must not forget that Sebastian had a really messy race. We didn't see the real Ferrari performance today and this is why you have to stay careful and continue to push."
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'We are like a different category' - Alonso
Fernando Alonso speaking to BBC Sport about THAT outburst: "When you are in the middle of a battle, fuel is a low priority and you will time later on. After three or four reminders of fuel, I just said let me race and let me have some fun.
"We are like a different category. When everyone pass you so easy like that, you look like a amateur driver and that is not good. We are not super competitive now, we have many things to do in our case. But hopefully this weekend has given us some lessons
"You need to I believe in this project all the program of developing the car is quite positive. I know it is difficult for the fans but they need to be patient and they need to believe because something good is coming. "
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David Coulthard
BBC F1 co-commentator
On Fernando Alonso: "He's made his choices in the same way Lewis Hamilton took the decision to leave McLaren for Mercedes when McLaren were a faster team. You can question some of the decisions Fernando has made - he left McLaren one year into a two-year contract because Lewis was fast."
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McLaren on Twitter: Cause of retirements: unrelated exhaust issues for both cars. We'll investigate further.
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Eddie Jordan
BBC F1 chief analyst
On Fernando Alonso: "I now think he thinks he made a mistake [in joining McLaren]."
If you look closely...
...you might just see a dummy flying from Fernando Alonso's McLaren cockpit.
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Bottas promises more podiums for Williams
Valtteri Bottas, P3: "I'm really happy for us. It was really good teamwork all weekend. A mistake by Kimi allowed us to make up one position. We really needed this. It really boosts the confidence. We are a top team and we can fight for the podiums."
Final results
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Rosberg satisfied with second
Nico Rosberg, P2: "I was pushing like mad but I couldn't quite make it. Second place is still okay. It was just a little bit in qualifying - the race pace was good."
'Did I need this? I think so'
Race-winner Lewis Hamilton: "I love Montreal. I love this track, love the city. Fantastic weekend. I didn't feel I had most comfortable balance but I didn't feel under too much pressure. It felt intense, I really enjoyed it. Did I need this? I think so.
"This place is incredible. There are lots of British flags, Canadian flags, Grenada flags and Barbados flags. I won my first race here in 2007 and to be back up here feels very historic for me."
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Cora: Started out a good race. Good overtakes. Ended up a fuel saving excercise/procession. Bring back refuelling!
Nicola Fairhurst: So a rodent on the track and Alonso's tantrum were the highlights of the Canadian GP...
Joe Giles: F1 is broken and boring! Just watching out of habit. No excitement, overtaking or even speed.
Hang in there guys
1986 Canadian GP winner Nigel Mansell: "We need McLaren and Honda, it takes time, hang in there JB, FA - it will get better soon."
Quick facts
That's the 37th win of Lewis Hamiton's career and his fourth at the Gilles Villeneuve Circuit, which was also the scene of his maiden F1 win in 2007.
He is alone in second place on the list of all-time Canadian GP winners, with Michael Schumacher, with seven, the man out in front.
"It couldn't be a better response to what happened in Monaco. Mercedes will be happy and it overwrites the disappointment of what happened there.
"Nico will be a little bit disappointed but second place keeps him very much in the hunt."
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First points of 2015 for Maldonado
The rest of your top 10 sees Felipe Massa an entertaining sixth for Williams, Lotus' Pastor Maldonado in seventh for his finish and points of the season, while Nico Hulkenberg (Force India), Daniil Kvyat (Red Bull) and Romain Grosjean (Lotus) complete the top 10.
Hamilton extends championship lead
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So, the win and 25 points goes to Lewis Hamilton, who extends his championship lead to 17 points over Mercedes team-mate Nico Rosberg, who finishes in second, 2.2secs behind.
Valtteri Bottas drove well to third place, the Finn benefiting from that spin by Kimi Raikkonen, who takes fourth for Ferrari ahead of team-mate Sebastian Vettel, who drove well from 18th.
Chequered flag
LEWIS HAMILTON WINS THE CANADIAN GRAND PRIX.
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David Coulthard
BBC F1 co-commentator
"If I knew who my local MP was, I'd write to him about all this lifting and coasting. We need to sort this out."
One lap to go
Lewis Hamiton is controlling this to the flag.
He's told to "lift and coast" again.
Gmmmmmmphhhhh!
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David Coulthard
BBC F1 co-commentator
Should Ferrari order Kimi Raikkonen (fourth) to let Sebastian Vettel (fifth) pass him?
"It's a good question. From a championship point of view, Sebastian is having a stronger season but they may consider race seven too early to be imposing that."
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Manor on Twitter: Our first retirement of the season. It was a good run though.
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Five laps to go - the lead is 2.5s
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Mercedes team radio
Nico Rosberg: "How is the other car on fuel?"
Engineer: "Can't comment."
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Retirement count up to three
Manor's Roberto Merhi joins the McLarens in retirement.
Nige calls it
1986 Canadian GP winner Nigel Mansell: "Looks all over - Lewis, Nico, Bottas."
Lotus team radio
Engineer to Romain Grosjean: "You have a five second penalty. You have to pass Kvyat and gain five seconds on him. Do your best."
Massa passes Maldonado for P6
Massa has driven well today at a track that has not been kind to him down the years.
He flies past Maldonado, who is more than 50 laps into his stint on the soft Pirelli, attempting a one-stopper it would seem.
Get involved - #bbcf1
Anthony: Replace McLaren with Maclaren. Because the toys will be coming out of the pram quite soon.
el Ash-o: I've had toe stubs that are probably more pleasant than driving that McLaren.
Kenny Smith: Plus side to McLaren's early race retirement is that they can turf Michael Douglas out of the Hospitality Suite...
Ferrari team radio
Engineer to Sebastian Vettel: "Good job, keep pushing like this P5. Kimi in front of you, racing Kimi."
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Ben Edwards
BBC F1 commentator
"Massa is catching Maldonado for sixth place. That could be one to watch."
Mercedes team radio
Engineer to Lewis Hamilton: "We need to introduce a little lift and coast."
Hamilton: "How much?"
Engineer: "50 metres will be enough."
Lift and coast. Welcome to F1 in 2015, ladies and gentlemen.
McLaren's retirement double
It's an unwanted double for McLaren, who now have both drivers out of the race - the only retirements of the grand prix so far.
Painfully slow and unreliable.
These are bleak times at Woking.
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David Coulthard
BBC F1 co-commentator
On McLaren's woeful 2015: "Get everyone together and get a hand grenade [for the car]. It's not working."
McLaren team radio
Engineer to Jenson Button: "Box this lap - we need to retire the car."
Vettel up to fifth
Vettel's climb through the field is continuing. He passed Maldonado for fifth a couple of laps ago.
That Ferrari is working well after yesterday's problems.
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Get involved - #bbcf1
Kev Heritage: 'Lifting & coasting' - the state of F1 in 2015. What a joke!
William Ogle: For a driver of Alonso's quality to have only finished twice this year (and neither in the points) is quite frankly, ridiculous.
Megacles: Eugh, poor Alonso. What an embarrassment McLaren-Honda are and wasting great drivers.
Williams team radio
Engineer to Valtteri Bottas: "Everything is looking good. At this pace, Raikkonen will catch us just after the race. You are bringing the fuel back to target, continue like this."
Jessica: The awkward moment when you hear Will Stevens' accent on the radio for the first time and think he's an engineer.
Ya Gunners Ya: Stevens sounds like an angry teenager on Gran Turismo after he's been shunted off by a kamikaze driver.
Stewart: Is Danny Dyer driving Will Stevens' Manor this weekend?
Manor team radio
Engineer to Will Stevens: "Grosjean has received a penalty."
Penalty for Grosjean
A five-second time penalty is swiftly slapped on Grosjean after that incident, which seems fair.
Manor team radio
Will Stevens: "So stupid - he comes across me every time he overtakes. What does he want me to do - go off the track?"
How very rude
Romain Grosjean's good race has just taken a nosedive with a moment's carelessness as he put a lap on the Manor of Will Stevens as they entered the final turn.
The pass was clean enough, but the Lotus man moved across too soon, damaging the Manor's nose and giving himself a puncture.
"He hit me, he hit me!" the Frenchman chunters on the team radio.
No, Romain, you hit him...
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McLaren team radio
Engineer to Jenson Button: "Fernando has retired - there is no reason why that would affect us."
Alonso retires
We have the first retirement of the race and it is the McLaren of Fernando Alonso that is back in the garage.
No power in the car, is the word from the pit lane.
Mercedes team radio
Engineer to to Nico Rosberg: "You have done a really good job on the brakes there. We want you to continue on - it will give you the chance to attack later on."
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Sauber on Twitter: Even dogs have proper accreditations here. Not sure the groundhog had track access though.
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Latest timing screen - lap 46
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Force India team radio
Nico Hulkenberg: "I had no choice - we would have collided."
Ferrari team radio
Sebastian Vettel: "Where is Hulkenberg? I didn't touch him."
Hulkenberg spins
The Force India of Nico Hulkenberg has just spun out of eighth place under pressure from the Ferrari of Sebastian Vettel.
Vettel takes to the run-off as things get very hairy for a moment but both men avoid contact with anything hard. They continue on.
"Hamilton has used more fuel than Rosberg up to this part of the grand prix, but has managed his brakes better. Different issues for the two drivers."
Red Bulls on 'critical' fuel
Red Bull team boss Christian Horner talking to BBC Sport: "Fuel is quite critical for us and the drivers are having to build that into their strategy. They are lifting at the end of the straight."
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Toro Rosso on Twitter: Max serves his 10-second penalty and then completes his pit-stop. He drives out on Super Soft tyres.
Toro RossoCopyright: Toro Rosso
Soon...
Please... soon.
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Tony Butler: Give that beaver a 10 second penalty!
Scott Coe: Even the local beavers are quicker than than the McLarens!
Steve Stevens: That daredevil beaver has been the most exciting thing in this race so far unfortunately!
Mercedes team radio
Engineer to Nico Rosberg: "Brake wear is now critical. We would like you to manage it for the next 10 laps, before you attack Lewis."
Force India team radio
Engineer to Nico Hulkenberg: "Vettel doesn't have to stop again."
Another view of Raikkonen's smokin' tyres
Lovely.
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Name that critter
"Get out the way, Beaver!"
So came the shrill cry of an F1 live text commentator a few moments ago.
There has since been some office discussion over whether it was in fact a marmot or a gopher or a groundhog.
Whatever, the furry critter got out the way.
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Vettel pits again
Start of lap 36 of 70 and this could be Vettel's stops done for the day.
Get involved - #bbcf1
Mark Minto: Doughnut mid-race from Kimi. Class.
Edward Williamson: Turning into a pretty forgettable weekend for Ferrari now…
Kenny Smith: The way Kimi's race is going, he will be drinking Canada dry tonight.
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David Coulthard
BBC F1 co-commentator
"It could be that Rosberg has saved some fuel in the first stint but we have seen this before where we think we have a race and Hamilton suddenly starts lighting the timing screens purple [to show he has gone faster]."
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Jennie Gow
BBC Radio 5 live pit-lane reporter
"There appears to be a flat spot on Lewis Hamilton's front right tyre."
LAP 35 - your leader at half distance
Hamilton's lead over Rosberg now down to 1.7secs.
This is getting very interesting.
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Ben Edwards
BBC F1 commentator
"Bottas has an excellent chance of his first podium of the season."
The Williams is now in third place after Raikkonen's spin.
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Ben Edwards
BBC F1 commentator
"Honda have a huge amount of work to do and this Montreal circuit is really showing it up."
Rosberg in on lap 31
On the very next lap Rosberg is in and puts on the softs, likes his team-mate.
Despite that error the gap between the front two has come down a bit.
Around 2.5secs as it stands.
Hamilton pits on lap 30
2.8secs stationary for the Mercedes man. He emerges into some lovely clear track.
Meanwhile, we've just seen his team-mate Rosberg getting it wrong at the chicane.
Little mistakes at key moments...
McLaren Honda team radio
Engineer: "We must save fuel, we must target zero. "
Fernando Alonso: "I don't want to. I don't want to. Already driving with... looking like amateur, I will race and then concentrate on the fuel."
Raikkonen spins!
Raikkonen has just come unstuck on his new tyres. He looks smooth through the hairpin but suddenly the front and rear ends swap places and he's left sitting in a cloud of tyre smoke facing the wrong way.
"Exactly the same happened last year!" the indignant Finn proclaims on the radio.
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Raikkonen first of top three to pit
The Ferrari comes in and puts on the soft tyre. He rejoins fourth, losing a place to Bottas for the time being.
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Ben Edwards
BBC F1 commentator
"Lewis Hamilton is absolutely flying. He just did a lap three-quarters of a second faster than team-mate Nico Rosberg. He is absolutely devouring this circuit."
Vettel closing on Ericsson next
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Mercedes on Twitter: Gentlemanly as always - Jenson gives Lewis plenty of room at the hairpin. Lewis is on a mission today!
Hamilton has just put a lap on his former McLaren team-mate.
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David Coulthard
BBC F1 co-commentator
"Mercedes are going well here on those tyres - 22 laps in. If they get to lap 30, that's a comfortable one-stop."
LAP 24
Hamilton is getting the hammer down here. With pit stops approaching, he extends his lead to 4.5secs over Rosberg.
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Job done for Vettel
After his earlier scares, Vettel does get past Alonso as they hare down the start-finish straight.
He has since made short work of the Toro Rossos of Verstappen and Sainz.
P13 now for the Scuderia driver.
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David Coulthard
BBC F1 co-commentator
"That was a bit optimistic from Sebastian - he got himself on the outside. Alonso is a racer, even though he is in a car which is the slowest in a straight line."
Two hair-raising moments for Vettel
Vettel is getting ragged as he tried to make his way through the field, running on to a slither of grass on the exit of turn six before failing with an attempted pass on Alonso into the final chicane, the Ferrari bouncing over the big kerbs.
"Check the front-right corner. I touched with Alonso," the four-time champion tells his team on the radio.
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Phill Alan Russell: We need a Maldonaldo spectacle to spice this race up a bit!
Pogba: I don't think Nico has any answers to Hamilton at this moment. I will bet he has his mind on a safety car.
Bishop Yinkus: Star driver of the day so far is Massa, what a race he is having this evening.
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1986 Canadian GP winner Nigel Mansell: "Great to see Lewis and Nico playing chess with one another at the moment, they just driving well within the car, just looking after it."
You're next, Kvyat
Massa zones in on his next victim...
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David Coulthard
BBC F1 co-commentator
"Felipe Massa has never actually out-qualified his team-mate at this circuit. It's always interesting to me how some circuits are more suited to some drivers than others."
'Depression' at Red Bull
Red Bull team boss Christian Horner talking to BBC Sport: "It was a bit depressing really [to see Felipe Massa pass Daniel Ricciardo]. It was an easy pass for Massa but we are not really racing them. It looks like we are racing Force India. The big question is whether it is one stop or two stop. That is what we are weighing up at the moment."
Massa into P9
The Felipe Massa Show continues with a pass on Sergio Perez for ninth.
The two drivers had a massive coming-together late in the race last year but no such drama today.
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David Coulthard
BBC F1 co-commentator
"So far, it doesn't look like Rosberg has any answer to Hamilton."
The gap is out to 3.3secs on lap 15.
Force India team radio
Nico Hulkenberg: "My front left tyre is looking pretty ugly. It's getting worse and worse."
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Nick Phillips: Ericsson, since going to Sauber, has really shown that he can race. Great stuff between him and Massa.
Callum Rowe: That Massa and Ericsson was incredible. Precision racing at its best.
Steven J.M. Heap: Proper racing from Massa and Ericsson. All nicely done. Thrilling stuff!
Massa into the points
Massa continues to make progress on the soft Pirelli. He sweeps past Ricciardo's Red Bull with nothing like the bother he had against Ericsson and is into P10.
Extra streams and F1 Forum
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Don't forget we have our extra camera streams during the race, including pit-lane feed, driver tracker, multiscreen and 5 live commentary.
Plus, you can watch the F1 Forum after the race right here online.
"Nice job Felipe. That was excellent. Next car is Perez."
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Massa's brother also approves.
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Ben Edwards
BBC F1 commentator
"Just remember, Massa is on a different tyre to those around him so could go deeper in the race. He is on the soft tyre which is the harder of the two compounds."
Good stuff from Massa
Great driving from Massa in the Williams there.
He first went to pass the Sauber of Ericsson for 11th into turn one, the move continued through two - the cars coming perilously close to touching - before completing the job into three.
Lovely stuff from both drivers.
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Vettel ducks out of the traffic
Vettel has had enough of scrapping in the midfield. He's in for new tyres. It's a slow stop though and he emerges in last place.
Vettel on the limit
Vettel locked a brake as he went to pass Alonso at the hairpin a couple of laps ago.
He gathered it up and has now got the pass done.
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Hamilton building lead
It's as you were at the front.
Hamilton has built a lead of around two seconds over Mercedes team-mate Rosberg.
Raikkonen's Ferrari another second back.
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David Coulthard
BBC F1 co-commentator
"You can see how much of a handicap the McLaren-Honda has in straight-line speed."
Get involved - #bbcf1
Steve Evans: Massa will be one to watch starting on the medium tyre - flexibility with his strategy.
Steffan Harries: Nice clean start and Lewis gapped Rosberg by a second after a single lap. Solid effort. Fair play!
Joe Mc Callion: For this year's Canadian GP I will be supporting the wall of champions. Please take no prisoners!
Close between Alonso and Massa
There's some big names in the lower midfield, with Massa, Alonso and Vettel all in a line.
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Vettel on the move
Sebastian Vettel has a very quick Ferrari underneath him and he will be great fun to watch from 18th on the grid.
He's just put a move on Carlos Sainz into the hairpin and is now 14th.
Fernando Alonso next in his sights.
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Hamilton's pre-race message to his team
Lewis Hamilton: "A big thank you for all the hard work this weekend in putting the car back together. Sorry I couldn't see you all individually, but really appreciate it. "
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David Coulthard
BBC F1 co-commentator
"Incredibly clean start from everyone."
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Button serves drive-through
Jenson Button has got his drive-through penalty for an engine element change out the way early.
At the end of lap one he peels in. Time to go racing, JB.
As you were for top five
Busy start, the Mercedes boys got close into turn one, but they emerge through the first few turns in the order they lined up on the grid.
Hamilton from Rosberg from Raikkonen.
Maldonado was the only loser among the top six, dropping a place to Hulkenberg.
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LIGHTS OUT!
Formation lap under way
Warm those tyres up boys.
Not you, Felipe Nasr.
Montreal 'like driving in the wet'
David Coulthard
BBC F1 co-commentator
"It's almost like driving in the wet. You have to leave a little bit of a margin. You just can't afford to carry too much momentum into a corner otherwise it will take you through the apex and into the wall."
It's a drag race - Lauda
Mercedes team boss Niki Lauda talking to BBC Sport's David Coulthard on the grid: "It's a drag race to the first corner. They are not allowed to hit each other and the rest we leave open as usual. I am worried because normally it's a one-stop race but a stupid virtual safety car can change things round."
Get involved - race predictions #bbcf1
Max Baggins-Craig: There will be more action at 1st corner on the 1st lap, then there was to today's friendly between ROI & Eng!
Jeremiah Kariuki: Mercedes may be hoping and looking for 1-2 finish. But Williams may spoil it especially if Bottas manages to overtake Kimi early.
Stuart Longley: Alonso to score points thanks to others dropping out.
Always a safety car - Rosberg
Mercedes' Nico Rosberg talking to BBC Sport's David Coulthard: "It's been very close all weekend. The start is an opportunity I need to go for but it's going to be difficult because I'm on the outside. There is always a safety car in Canada so that's another opportunity."
Al Pacino in the house
Hoo-ha!
BBCCopyright: BBC
The starting grid
F1Copyright: F1
Pole no guarantee of victory
The Canadian Grand Prix pole-sitter has only won the race five times since 2000, so there's every reason for his rivals to head into today's race with optimism.
That said, Hamilton can lay claim to two of those wins in 2007 and 2010. The others were Michael Schumacher (2000), Fernando Alonso (2006) and Sebastian Vettel (2013).
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Anthem sung. The race is fast approaching
BBCCopyright: BBC
Your wish is our command
Mrs P. M. Dawn of Chipping Sodbury writes: "Why oh why oh why does the BBC not show more piggy-backs with a combined age of 151? What do I pay my licence fee for?"
"The potential return of refuelling for 2017 has been a focal point in the last three weeks or so, since the strategy group agreed to explore the idea. But it seems pretty much dead in the water.
"As we wrote earlier this weekend, the teams have effectively said there are no benefits to it, only negatives. Mercedes F1 boss Toto Wolff said: 'When we discussed it in the strategy group, it didn't have a lot of support. We agreed to explore it, to discuss it in the technical regulations meeting and the sporting regulations meeting, and analyse it properly. The feedback was 100% negative - too expensive, not safe enough, detrimental to the races and strategies. So it will go back in the strategy group and my opinion is it shouldn't happen. I'm not keen on getting refuelling back into F1.'
AFPCopyright: AFP
"There is still the question of whether refuelling's two biggest proponents - Donald MacKenzie of commercial rights holder CVC and Ferrari president Sergio Marchionne - can be talked down. One senior insider admitted that was a concern, only to add: 'It's not going to happen'."
Montreal 'really attacks your senses'
David Coulthard
BBC F1 co-commentator
"The Circuit Gilles Villeneuve really attacks your senses. You come from Monaco, the slowest circuit on the calendar, to one of the fastest. There is no room for error and there are a lot of incidents and accidents here."
"The teams are unsure whether this will be a one-stop or a two-stop race. That's largely because the rain on Friday meant they have less information than normal. For the front-runners, the first stops will be around lap 13-15 and teams will have to decide on the fly the strategy for the rest of the race depending on the degradation of the 'soft' tyre they will most likely use in the second stint.
"They should know by 10 to 15 laps into that stint. Some in the second half of the grid may start on the soft and see how it goes. A pit stop takes about 17.5 seconds in total and the chances of a safety car are put at 60%."
Lauda dons a sweater
The sight of Niki Lauda putting on a sweater against the Montreal elements is a SURE SIGN IT'S GOING TO RAIN!
Leading by a country mile, Nigel Mansell was so confident at the wheel of his Williams that he waved to the crowd after the first corner of his final lap.
But disaster struck as he exited the hairpin further round the lap, the FW14 slowing to a crawl, allowing the Benetton of Nelson Piquet to come through for his 23rd and final career win.
Heil Shia: I hope that Bottas can take it, but I think it'll be Hamilton, Rosberg, Bottas then maybe Raikkonen and Massa unless Mercedes are struck with reliability issues.
Haydn Millington: 1) Hamilton 2) Raikkonen 3) Vettel. Vettel passes nearly everyone, Rosberg retires with mechanical failure.
Maria Read: After the Monaco fiasco I think Mercedes will throw everything they have into supporting Lewis to win.
Canada loves a safety car
Getty ImagesCopyright: Getty Images
The Canadian Grand Prix could tell you a thing or two about safety cars.
The first ever F1 safety car was deployed in the 1973 Canadian GP at Mosport Park, although it was a fairly ignominious debut.
A Porsche 914, piloted by former F1 driver Eppie Wietzes, mistakenly picked up Howden Ganley instead of leader Emerson Fittipaldi, an error that allowed a number of drivers to make up a lap on the field.
One of the drivers to benefit was McLaren's Peter Revson, who amid confused scenes at the chequered flag was ultimately declared the winner, despite the counter-claims of both Fittipaldi and Ganley.
Getty ImagesCopyright: Getty Images
Of the last 17 Canadian GPs, 11 have been interrupted by safety car periods, with the 1999 and 2007 races both having four separate appearances, while in 2011 32 of the 70 laps were run behind the safety car, which came out a record six times.
The 1999 race was the first ever to finish during a Safety Car period, and it happened again last season, making it the only track on which it has happened twice.
The Sun on Sunday say that Lewis Hamilton recovered from his "Monaco meltdown" by taking pole position in Montreal. They claim the world champion arrived in Canada "still reeling from his Mercedes team's bungle which wrecked his chances of winning in Monte Carlo".
'Very hard on the car'
Eddie Jordan
BBC F1 chief analyst
"The drivers love it here because it's a change from Europe and Asia. The people here are special. There have been a lot of surprise race winners. It's a very difficult circuit and very hard on the car."
"Lotus have looked strong all weekend and Romain Grosjean and Pastor Maldonado delivered on their practice promise to line up fifth and sixth on the grid, their strongest team showing since 2013.
"The performance caught the team a little by surprise - trackside operations director Alan Permane had said on Thursday it would be 'business as usual'. But he explained that the Lotus was strong on braking and traction, two pre-requisites of a strong car in Montreal. And of course it has the Mercedes engine, which has a combination of power, torque and tractability that remains unmatched - as evidenced by the fact that both Force Indias were also in the top 10."
The French-Canadian driver took the victory in his 19th career outing after long-time leader Jean-Pierre Jarier retired with an oil problem in the Lotus 79.
The Ile-Notre Dame circuit changed its name to the Circuit Gilles Villeneuve in 1982, following his fatal accident at Zolder earlier that year.
"People have been very patient with Honda so far this season, accepting that the company started late on its F1 engine, probably entered too early, and is effectively doing 'R&D in the public domain', as Mercedes engine boss Andy Cowell put it a couple of races ago.
"However, a backlash was inevitable and it came on Saturday afternoon, after a poor weekend for the Japanese company that has required engine changes on both cars because of failures and Jenson Button starting from the back of the grid, and with a drive-though penalty for fitting a new turbo and MGU-H to replace those that failed on Saturday. Fernando Alonso could manage only 14th - although will start 13th following Max Verstappen's penalty.
Getty ImagesCopyright: Getty Images
"As a result, Honda F1 boss Yasuhisa Arai got a bit of a going-over in the post-qualifying news conference. He admitted he was 'not satisfied and very sad', and that it had been a 'tough' weekend. As the pointed questions poured in, Alonso and Button, sitting either side of Arai, had their heads down, the peaks of their caps preventing onlookers discerning their expressions.
"Arai promised 'more horsepower in the near future' and that 'in the middle of the second half of the season we can expect good competition with top-level teams'. Not only does that seem an ambitious claim, but if it does not happen those difficult questions will only get louder."
Live Reporting
Jamie Strickland
All times stated are UK
Get involved
We'll leave you with the star of today's show
So that race may not have been a thriller, but there was plenty to get people chatting.
McLaren's miserable day, Fernando Alonso's radio rant, the dreaded "lift and coast" messages, and at the end of it all a fourth win of the season and an extended championship lead for Lewis Hamilton.
But let's be honest, it's all about this wee man.
Until Austria.
Get involved - #bbcf1
Charlotte Keating: This race has really shown the deterioration of the sport in the last 2 years. It used to be the highlight of my week.
Sean Harrison: Surprised Hamilton's keen on refuelling returning. Thought he'd prefer straight racing rather than races around fuel strategy.
Cameron Tait: Lots of negative publicity for the hybrid systems in Canada. No one wants to see cars lifting can coasting.
Hamilton becomes top British lap leader
Lewis Hamilton led his 75th race today and along the way passed Nigel Mansell's 2,091 laps led by a British driver.
Hamilton now has led 2,143 laps from his 155 grand prix starts.
Laps led by British drivers: Top Five:
Get involved - #bbcf1
Graham Stokes: The cars need to race closer, change the aero make them run with max fuel, remove the plank and alter the front wing.
Peter Meijering: There is more on-course overtaking in World Rally Championship. F1 is supposed to be a sprint race! Less $, more racing.
Ross Green: Get rid of fuel limiting! Bring in budget capping! Scrap DRS & give turbo to cars further down grid. And provide better tyre compounds.
Post update
Romain Grosjean on Twitter: Sorry for my team as I made a mistake today and lost some good points... But a lot of positives for the Austrian GP.
Fuel saving is 'frustrating' - Hamilton
Lewis Hamilton, P1, speaking to BBC Sport: "It is going incredibly well. This team has helped me live my dream. Every race win is a different feeling.
"My lead engineer lost a family member this weekend and to come here and perform like he has has been amazing. I take my hat off to him."
On saving fuel: Definitely frustrating to have to lift and coast. If you had to be pushing, pushing the whole way... You remember what it was like. These days physically I wasn't suffering too much.
"If you had fuel stops - like they are hopefully going to do - you could push the whole race."
Lewis meets the fans
Lewis Hamilton has enjoyed a really warm reception from a lot of fans who have stayed behind after the race.
Pop stars, footballers and F1 drivers. They have that effect.
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Ferrari on Twitter: Maurizio Arrivabene: We slipped off the podium this time but we are still second best.
Heads down at Red Bull
Tom Clarkson
BBC F1 pit-lane reporter
The debrief begins for Ricciardo. Here he expresses his frustrations to Christian Horner, Helmut Marko etc.
Get involved - Smedders #bbcf1
Cue the Smedders fan club...
Colin Bowett: Rob Smedley = Legend!
Jessica: Yayyyyy Rob!
lillyloo: #swoon
James Matthews: Good gracious, Rob Smedley brings the heat.
SusieAH: Yep I'm here! Fan-girling at its finest whit whoooo
Mercedes celebrate their one-two
Contrasting outfits from the two drivers it's fair to say.
Rosberg looks to gain a sneaky advantage
Nico Rosberg, P2: "I have an electrical power boost for two laps to see if I can attack him, but of course as soon as I do that his engineer tells him and he will do the same. I think I will have to have a word with the team and see if we can keep it a secret.
"I have one option, which could be to be fully depressed, but I have chosen to keep a smile on, because second place is not the end of the world."
'Fernando believes in us'
McLaren's chief operating officer Jonathan Neale talking to BBC Sport: "We know that Fernando has a car he can drive but, yes, we need to get more performance. He knows and believes in the things we have coming in the pipeline.
"We have to take it on the chin. We have made up two-and-a-half seconds a lap since the start of the season, but we are still two seconds behind."
Get involved - Jonathan Neale interview #bbcf1
A lot of you have reacted very positively to Jonathan Neale's stout defence of McLaren over on our red button coverage.
Phillippa Gillett: So nice to hear McLaren's Jonathan Neale being very honest about the problems McLaren are facing.
James Greatbanks: Best part of the Canadian GP is definitely that interview.
Ben Malone: As a McLaren fan hearing Jonathan Neale speak from the hip was brilliant. Honesty wins.
Be still my beating heart
Smokin' Smedders is on the screen.
An avalanche of love will land at #bbcf1 shortly.
We'll keep you posted.
'We have to be independent'
McLaren's chief operating officer Jonathan Neale talking to BBC Sport: "If we'd stayed with Mercedes, there is not a cat in hell's chance we would have beaten them. I love Toto Wolff and Paddy Lowe like a brother but they are not going to share data with us.
"We have to be independent. We are going to fight this as a team. The only way back to championships is with an independent.
"Honda have done a great job in a short period of time."
'We should let Fernando get on with it'
McLaren's chief operating officer Jonathan Neale talking to BBC Sport: "Actually I agree with Fernando [about his response to the engineer on the team radio]. The drivers are trying to manage the race.
"Fernando is the guy on the circuit trying to get the job done. We should let him get on with it. When we looked at the data afterwards, he could have got the car home."
Get involved - #bbcf1
Ryan: F1 was at its best when the FIA didn't try and push the spectacle like in 2006-2008. This approach must re-appear to improve.
Longhaul Tyke: Do we really have to wait until 2017 for cars that will allow REAL racing? Lift and coast!!
Kate Green: When there is more discussion about an on track rodent than the racing, the sport of F1 is crying for a shake up!
Christopher Foxon: Budget caps will level the playing field and lead to closer racing. Mercedes too far ahead. Financial Fair Play needed. Boring race!
Stephen Cleaver: A way to improve competitiveness is INVERT the FIA PRIZE MONEY so 1st place gets the LEAST money not the MOST!
'I'm laughing because I don't want to cry' - Ricciardo
Red Bull's Daniel Ricciardo (P13) talking to BBC Sport's Lee McKenzie: "I got lapped by a Williams - that explains my day. It was our worst weekend of the year. We have got to understand it but I don't have any answers. I'm laughing because I don't want to cry."
Ideas to make F1 more entertaining #287
Everyone get drunk first.
Not the drivers, of course.
Get involved - #bbcf1
James Matthews: I almost want to see some Red Bull-style outbursts from McLaren. Repeating the same PR soundbites every weekend sounds so defeatist.
Jamie Lee: Eddie Jordan is spot on with McLaren, something needs to change at a once great team! They have the drivers, not the car.
David Dalton: Honda, Ferrari and Renault engines just aren't cutting it, do we need a new engine supplier? Toyota back?
Post update
Fernando Alonso on Twitter: Jenson Button... Is this a bit better..? Well, probably depends upon how you look at it.
Constructors' standings after seven rounds
Drivers' standings after seven rounds
'Weak' performance from McLaren - Button
McLaren's Jenson Button talking to BBC Sport's Lee McKenzie: "It's a difficult balance [focusing on reliability and improving the car]. We were weak in both areas this weekend. Hopefully we can solve these issues in two weeks."
More on McLaren's plight
Eddie Jordan
BBC F1 chief analyst
"There have to be major changes in the top management of McLaren.
"Ron Dennis has to look at himself and ask 'What is happening on my stewardship?' It was never as bad as this under Martin Whitmarsh."
Post update
David Coulthard
BBC F1 co-commentator
"Fuel saving, let's get rid of that. It's like battery anxiety in your mobile phone."
Wolff defends 'lift and coast' messages
Mercedes team boss Toto Wolff on the calls to "lift and coast": "It is a fine margin we have. We want them to compete against each other, so you need to watch the brakes and the fuel consumption and this is the fine line we need to walk on.
"You must not forget that Sebastian had a really messy race. We didn't see the real Ferrari performance today and this is why you have to stay careful and continue to push."
'We are like a different category' - Alonso
Fernando Alonso speaking to BBC Sport about THAT outburst: "When you are in the middle of a battle, fuel is a low priority and you will time later on. After three or four reminders of fuel, I just said let me race and let me have some fun.
"We are like a different category. When everyone pass you so easy like that, you look like a amateur driver and that is not good. We are not super competitive now, we have many things to do in our case. But hopefully this weekend has given us some lessons
"You need to I believe in this project all the program of developing the car is quite positive. I know it is difficult for the fans but they need to be patient and they need to believe because something good is coming. "
Post update
David Coulthard
BBC F1 co-commentator
On Fernando Alonso: "He's made his choices in the same way Lewis Hamilton took the decision to leave McLaren for Mercedes when McLaren were a faster team. You can question some of the decisions Fernando has made - he left McLaren one year into a two-year contract because Lewis was fast."
Post update
McLaren on Twitter: Cause of retirements: unrelated exhaust issues for both cars. We'll investigate further.
Post update
Eddie Jordan
BBC F1 chief analyst
On Fernando Alonso: "I now think he thinks he made a mistake [in joining McLaren]."
If you look closely...
...you might just see a dummy flying from Fernando Alonso's McLaren cockpit.
Bottas promises more podiums for Williams
Valtteri Bottas, P3: "I'm really happy for us. It was really good teamwork all weekend. A mistake by Kimi allowed us to make up one position. We really needed this. It really boosts the confidence. We are a top team and we can fight for the podiums."
Final results
Rosberg satisfied with second
Nico Rosberg, P2: "I was pushing like mad but I couldn't quite make it. Second place is still okay. It was just a little bit in qualifying - the race pace was good."
'Did I need this? I think so'
Race-winner Lewis Hamilton: "I love Montreal. I love this track, love the city. Fantastic weekend. I didn't feel I had most comfortable balance but I didn't feel under too much pressure. It felt intense, I really enjoyed it. Did I need this? I think so.
"This place is incredible. There are lots of British flags, Canadian flags, Grenada flags and Barbados flags. I won my first race here in 2007 and to be back up here feels very historic for me."
Get involved - #bbcf1
Cora: Started out a good race. Good overtakes. Ended up a fuel saving excercise/procession. Bring back refuelling!
Nicola Fairhurst: So a rodent on the track and Alonso's tantrum were the highlights of the Canadian GP...
Joe Giles: F1 is broken and boring! Just watching out of habit. No excitement, overtaking or even speed.
Hang in there guys
1986 Canadian GP winner Nigel Mansell: "We need McLaren and Honda, it takes time, hang in there JB, FA - it will get better soon."
Quick facts
That's the 37th win of Lewis Hamiton's career and his fourth at the Gilles Villeneuve Circuit, which was also the scene of his maiden F1 win in 2007.
He is alone in second place on the list of all-time Canadian GP winners, with Michael Schumacher, with seven, the man out in front.
Your remaining finishers
11 Perez, 12 Sainz, 13 Ricciardo, 14 Ericsson, 15 Verstappen, 16 Nasr, 17 Stevens
Williams team radio
Engineer to Valtteri Bottas, P3: "Excellent job, that was an absolutely flawless drive."
Post update
Lotus on Twitter: Double points. Finally.
Post update
David Coulthard
BBC F1 co-commentator
"It couldn't be a better response to what happened in Monaco. Mercedes will be happy and it overwrites the disappointment of what happened there.
"Nico will be a little bit disappointed but second place keeps him very much in the hunt."
First points of 2015 for Maldonado
The rest of your top 10 sees Felipe Massa an entertaining sixth for Williams, Lotus' Pastor Maldonado in seventh for his finish and points of the season, while Nico Hulkenberg (Force India), Daniil Kvyat (Red Bull) and Romain Grosjean (Lotus) complete the top 10.
Hamilton extends championship lead
So, the win and 25 points goes to Lewis Hamilton, who extends his championship lead to 17 points over Mercedes team-mate Nico Rosberg, who finishes in second, 2.2secs behind.
Valtteri Bottas drove well to third place, the Finn benefiting from that spin by Kimi Raikkonen, who takes fourth for Ferrari ahead of team-mate Sebastian Vettel, who drove well from 18th.
Chequered flag
LEWIS HAMILTON WINS THE CANADIAN GRAND PRIX.
Post update
David Coulthard
BBC F1 co-commentator
"If I knew who my local MP was, I'd write to him about all this lifting and coasting. We need to sort this out."
One lap to go
Lewis Hamiton is controlling this to the flag.
He's told to "lift and coast" again.
Gmmmmmmphhhhh!
Post update
David Coulthard
BBC F1 co-commentator
Should Ferrari order Kimi Raikkonen (fourth) to let Sebastian Vettel (fifth) pass him?
"It's a good question. From a championship point of view, Sebastian is having a stronger season but they may consider race seven too early to be imposing that."
Post update
Manor on Twitter: Our first retirement of the season. It was a good run though.
Five laps to go - the lead is 2.5s
Mercedes team radio
Nico Rosberg: "How is the other car on fuel?"
Engineer: "Can't comment."
Retirement count up to three
Manor's Roberto Merhi joins the McLarens in retirement.
Nige calls it
1986 Canadian GP winner Nigel Mansell: "Looks all over - Lewis, Nico, Bottas."
Lotus team radio
Engineer to Romain Grosjean: "You have a five second penalty. You have to pass Kvyat and gain five seconds on him. Do your best."
Massa passes Maldonado for P6
Massa has driven well today at a track that has not been kind to him down the years.
He flies past Maldonado, who is more than 50 laps into his stint on the soft Pirelli, attempting a one-stopper it would seem.
Get involved - #bbcf1
Anthony: Replace McLaren with Maclaren. Because the toys will be coming out of the pram quite soon.
el Ash-o: I've had toe stubs that are probably more pleasant than driving that McLaren.
Kenny Smith: Plus side to McLaren's early race retirement is that they can turf Michael Douglas out of the Hospitality Suite...
Ferrari team radio
Engineer to Sebastian Vettel: "Good job, keep pushing like this P5. Kimi in front of you, racing Kimi."
Post update
Ben Edwards
BBC F1 commentator
"Massa is catching Maldonado for sixth place. That could be one to watch."
Mercedes team radio
Engineer to Lewis Hamilton: "We need to introduce a little lift and coast."
Hamilton: "How much?"
Engineer: "50 metres will be enough."
Lift and coast. Welcome to F1 in 2015, ladies and gentlemen.
McLaren's retirement double
It's an unwanted double for McLaren, who now have both drivers out of the race - the only retirements of the grand prix so far.
Painfully slow and unreliable.
These are bleak times at Woking.
Post update
David Coulthard
BBC F1 co-commentator
On McLaren's woeful 2015: "Get everyone together and get a hand grenade [for the car]. It's not working."
McLaren team radio
Engineer to Jenson Button: "Box this lap - we need to retire the car."
Vettel up to fifth
Vettel's climb through the field is continuing. He passed Maldonado for fifth a couple of laps ago.
That Ferrari is working well after yesterday's problems.
Get involved - #bbcf1
Kev Heritage: 'Lifting & coasting' - the state of F1 in 2015. What a joke!
William Ogle: For a driver of Alonso's quality to have only finished twice this year (and neither in the points) is quite frankly, ridiculous.
Megacles: Eugh, poor Alonso. What an embarrassment McLaren-Honda are and wasting great drivers.
Williams team radio
Engineer to Valtteri Bottas: "Everything is looking good. At this pace, Raikkonen will catch us just after the race. You are bringing the fuel back to target, continue like this."
LAP 57 - top 10
1 Hamilton, 2 Rosberg, 3 Bottas, 4 Raikkonen, 5 Vettel, 6 Maldonado, 7 Massa, 8 Hulkenberg, 9 Kvyat, 10 Perez
Get involved - #bbcf1
Jessica: The awkward moment when you hear Will Stevens' accent on the radio for the first time and think he's an engineer.
Ya Gunners Ya: Stevens sounds like an angry teenager on Gran Turismo after he's been shunted off by a kamikaze driver.
Stewart: Is Danny Dyer driving Will Stevens' Manor this weekend?
Manor team radio
Engineer to Will Stevens: "Grosjean has received a penalty."
Penalty for Grosjean
A five-second time penalty is swiftly slapped on Grosjean after that incident, which seems fair.
Manor team radio
Will Stevens: "So stupid - he comes across me every time he overtakes. What does he want me to do - go off the track?"
How very rude
Romain Grosjean's good race has just taken a nosedive with a moment's carelessness as he put a lap on the Manor of Will Stevens as they entered the final turn.
The pass was clean enough, but the Lotus man moved across too soon, damaging the Manor's nose and giving himself a puncture.
"He hit me, he hit me!" the Frenchman chunters on the team radio.
No, Romain, you hit him...
McLaren team radio
Engineer to Jenson Button: "Fernando has retired - there is no reason why that would affect us."
Alonso retires
We have the first retirement of the race and it is the McLaren of Fernando Alonso that is back in the garage.
No power in the car, is the word from the pit lane.
Mercedes team radio
Engineer to to Nico Rosberg: "You have done a really good job on the brakes there. We want you to continue on - it will give you the chance to attack later on."
Post update
Sauber on Twitter: Even dogs have proper accreditations here. Not sure the groundhog had track access though.
Latest timing screen - lap 46
Force India team radio
Nico Hulkenberg: "I had no choice - we would have collided."
Ferrari team radio
Sebastian Vettel: "Where is Hulkenberg? I didn't touch him."
Hulkenberg spins
The Force India of Nico Hulkenberg has just spun out of eighth place under pressure from the Ferrari of Sebastian Vettel.
Vettel takes to the run-off as things get very hairy for a moment but both men avoid contact with anything hard. They continue on.
LAP 44 - top 10
1 Hamilton, 2 Rosberg, 3 Bottas, 4 Raikkonen, 5 Grosjean, 6 Maldonado, 7 Hulkenberg, 8 Vettel, 9 Massa, 10 Kvyat
Post update
David Coulthard
BBC F1 co-commentator
"Hamilton has used more fuel than Rosberg up to this part of the grand prix, but has managed his brakes better. Different issues for the two drivers."
Red Bulls on 'critical' fuel
Red Bull team boss Christian Horner talking to BBC Sport: "Fuel is quite critical for us and the drivers are having to build that into their strategy. They are lifting at the end of the straight."
Post update
Toro Rosso on Twitter: Max serves his 10-second penalty and then completes his pit-stop. He drives out on Super Soft tyres.
Soon...
Please... soon.
Get involved - #bbcf1
Tony Butler: Give that beaver a 10 second penalty!
Scott Coe: Even the local beavers are quicker than than the McLarens!
Steve Stevens: That daredevil beaver has been the most exciting thing in this race so far unfortunately!
Mercedes team radio
Engineer to Nico Rosberg: "Brake wear is now critical. We would like you to manage it for the next 10 laps, before you attack Lewis."
Force India team radio
Engineer to Nico Hulkenberg: "Vettel doesn't have to stop again."
Another view of Raikkonen's smokin' tyres
Lovely.
Name that critter
"Get out the way, Beaver!"
So came the shrill cry of an F1 live text commentator a few moments ago.
There has since been some office discussion over whether it was in fact a marmot or a gopher or a groundhog.
Whatever, the furry critter got out the way.
Vettel pits again
Start of lap 36 of 70 and this could be Vettel's stops done for the day.
Get involved - #bbcf1
Mark Minto: Doughnut mid-race from Kimi. Class.
Edward Williamson: Turning into a pretty forgettable weekend for Ferrari now…
Kenny Smith: The way Kimi's race is going, he will be drinking Canada dry tonight.
Post update
David Coulthard
BBC F1 co-commentator
"It could be that Rosberg has saved some fuel in the first stint but we have seen this before where we think we have a race and Hamilton suddenly starts lighting the timing screens purple [to show he has gone faster]."
Post update
Jennie Gow
BBC Radio 5 live pit-lane reporter
"There appears to be a flat spot on Lewis Hamilton's front right tyre."
LAP 35 - your leader at half distance
Hamilton's lead over Rosberg now down to 1.7secs.
This is getting very interesting.
Post update
Ben Edwards
BBC F1 commentator
"Bottas has an excellent chance of his first podium of the season."
The Williams is now in third place after Raikkonen's spin.
Post update
Ben Edwards
BBC F1 commentator
"Honda have a huge amount of work to do and this Montreal circuit is really showing it up."
Rosberg in on lap 31
On the very next lap Rosberg is in and puts on the softs, likes his team-mate.
Despite that error the gap between the front two has come down a bit.
Around 2.5secs as it stands.
Hamilton pits on lap 30
2.8secs stationary for the Mercedes man. He emerges into some lovely clear track.
Meanwhile, we've just seen his team-mate Rosberg getting it wrong at the chicane.
Little mistakes at key moments...
McLaren Honda team radio
Engineer: "We must save fuel, we must target zero. "
Fernando Alonso: "I don't want to. I don't want to. Already driving with... looking like amateur, I will race and then concentrate on the fuel."
Raikkonen spins!
Raikkonen has just come unstuck on his new tyres. He looks smooth through the hairpin but suddenly the front and rear ends swap places and he's left sitting in a cloud of tyre smoke facing the wrong way.
"Exactly the same happened last year!" the indignant Finn proclaims on the radio.
Raikkonen first of top three to pit
The Ferrari comes in and puts on the soft tyre. He rejoins fourth, losing a place to Bottas for the time being.
Post update
Ben Edwards
BBC F1 commentator
"Lewis Hamilton is absolutely flying. He just did a lap three-quarters of a second faster than team-mate Nico Rosberg. He is absolutely devouring this circuit."
Vettel closing on Ericsson next
Post update
Mercedes on Twitter: Gentlemanly as always - Jenson gives Lewis plenty of room at the hairpin. Lewis is on a mission today!
Hamilton has just put a lap on his former McLaren team-mate.
Post update
David Coulthard
BBC F1 co-commentator
"Mercedes are going well here on those tyres - 22 laps in. If they get to lap 30, that's a comfortable one-stop."
LAP 24
Hamilton is getting the hammer down here. With pit stops approaching, he extends his lead to 4.5secs over Rosberg.
Job done for Vettel
After his earlier scares, Vettel does get past Alonso as they hare down the start-finish straight.
He has since made short work of the Toro Rossos of Verstappen and Sainz.
P13 now for the Scuderia driver.
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David Coulthard
BBC F1 co-commentator
"That was a bit optimistic from Sebastian - he got himself on the outside. Alonso is a racer, even though he is in a car which is the slowest in a straight line."
Two hair-raising moments for Vettel
Vettel is getting ragged as he tried to make his way through the field, running on to a slither of grass on the exit of turn six before failing with an attempted pass on Alonso into the final chicane, the Ferrari bouncing over the big kerbs.
"Check the front-right corner. I touched with Alonso," the four-time champion tells his team on the radio.
Get involved - #bbcf1
Phill Alan Russell: We need a Maldonaldo spectacle to spice this race up a bit!
Pogba: I don't think Nico has any answers to Hamilton at this moment. I will bet he has his mind on a safety car.
Bishop Yinkus: Star driver of the day so far is Massa, what a race he is having this evening.
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1986 Canadian GP winner Nigel Mansell: "Great to see Lewis and Nico playing chess with one another at the moment, they just driving well within the car, just looking after it."
You're next, Kvyat
Massa zones in on his next victim...
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David Coulthard
BBC F1 co-commentator
"Felipe Massa has never actually out-qualified his team-mate at this circuit. It's always interesting to me how some circuits are more suited to some drivers than others."
'Depression' at Red Bull
Red Bull team boss Christian Horner talking to BBC Sport: "It was a bit depressing really [to see Felipe Massa pass Daniel Ricciardo]. It was an easy pass for Massa but we are not really racing them. It looks like we are racing Force India. The big question is whether it is one stop or two stop. That is what we are weighing up at the moment."
Massa into P9
The Felipe Massa Show continues with a pass on Sergio Perez for ninth.
The two drivers had a massive coming-together late in the race last year but no such drama today.
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David Coulthard
BBC F1 co-commentator
"So far, it doesn't look like Rosberg has any answer to Hamilton."
The gap is out to 3.3secs on lap 15.
Force India team radio
Nico Hulkenberg: "My front left tyre is looking pretty ugly. It's getting worse and worse."
Get involved - #bbcf1
Nick Phillips: Ericsson, since going to Sauber, has really shown that he can race. Great stuff between him and Massa.
Callum Rowe: That Massa and Ericsson was incredible. Precision racing at its best.
Steven J.M. Heap: Proper racing from Massa and Ericsson. All nicely done. Thrilling stuff!
Massa into the points
Massa continues to make progress on the soft Pirelli. He sweeps past Ricciardo's Red Bull with nothing like the bother he had against Ericsson and is into P10.
Extra streams and F1 Forum
Don't forget we have our extra camera streams during the race, including pit-lane feed, driver tracker, multiscreen and 5 live commentary.
Plus, you can watch the F1 Forum after the race right here online.
LAP 13 - top 10
1 Hamilton, 2 Rosberg, 3 Raikkonen, 4 Bottas, 5 Grosjean, 6 Hulkenberg, 7 Maldonado, 8 Kvyat, 9 Perez, 10 Ricciardo
Williams team radio
"Nice job Felipe. That was excellent. Next car is Perez."
Massa's brother also approves.
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Ben Edwards
BBC F1 commentator
"Just remember, Massa is on a different tyre to those around him so could go deeper in the race. He is on the soft tyre which is the harder of the two compounds."
Good stuff from Massa
Great driving from Massa in the Williams there.
He first went to pass the Sauber of Ericsson for 11th into turn one, the move continued through two - the cars coming perilously close to touching - before completing the job into three.
Lovely stuff from both drivers.
Vettel ducks out of the traffic
Vettel has had enough of scrapping in the midfield. He's in for new tyres. It's a slow stop though and he emerges in last place.
Vettel on the limit
Vettel locked a brake as he went to pass Alonso at the hairpin a couple of laps ago.
He gathered it up and has now got the pass done.
Hamilton building lead
It's as you were at the front.
Hamilton has built a lead of around two seconds over Mercedes team-mate Rosberg.
Raikkonen's Ferrari another second back.
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David Coulthard
BBC F1 co-commentator
"You can see how much of a handicap the McLaren-Honda has in straight-line speed."
Get involved - #bbcf1
Steve Evans: Massa will be one to watch starting on the medium tyre - flexibility with his strategy.
Steffan Harries: Nice clean start and Lewis gapped Rosberg by a second after a single lap. Solid effort. Fair play!
Joe Mc Callion: For this year's Canadian GP I will be supporting the wall of champions. Please take no prisoners!
Close between Alonso and Massa
There's some big names in the lower midfield, with Massa, Alonso and Vettel all in a line.
Vettel on the move
Sebastian Vettel has a very quick Ferrari underneath him and he will be great fun to watch from 18th on the grid.
He's just put a move on Carlos Sainz into the hairpin and is now 14th.
Fernando Alonso next in his sights.
Hamilton's pre-race message to his team
Lewis Hamilton: "A big thank you for all the hard work this weekend in putting the car back together. Sorry I couldn't see you all individually, but really appreciate it. "
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David Coulthard
BBC F1 co-commentator
"Incredibly clean start from everyone."
Button serves drive-through
Jenson Button has got his drive-through penalty for an engine element change out the way early.
At the end of lap one he peels in. Time to go racing, JB.
As you were for top five
Busy start, the Mercedes boys got close into turn one, but they emerge through the first few turns in the order they lined up on the grid.
Hamilton from Rosberg from Raikkonen.
Maldonado was the only loser among the top six, dropping a place to Hulkenberg.
LIGHTS OUT!
Formation lap under way
Warm those tyres up boys.
Not you, Felipe Nasr.
Montreal 'like driving in the wet'
David Coulthard
BBC F1 co-commentator
"It's almost like driving in the wet. You have to leave a little bit of a margin. You just can't afford to carry too much momentum into a corner otherwise it will take you through the apex and into the wall."
It's a drag race - Lauda
Mercedes team boss Niki Lauda talking to BBC Sport's David Coulthard on the grid: "It's a drag race to the first corner. They are not allowed to hit each other and the rest we leave open as usual. I am worried because normally it's a one-stop race but a stupid virtual safety car can change things round."
Get involved - race predictions #bbcf1
Max Baggins-Craig: There will be more action at 1st corner on the 1st lap, then there was to today's friendly between ROI & Eng!
Jeremiah Kariuki: Mercedes may be hoping and looking for 1-2 finish. But Williams may spoil it especially if Bottas manages to overtake Kimi early.
Stuart Longley: Alonso to score points thanks to others dropping out.
Always a safety car - Rosberg
Mercedes' Nico Rosberg talking to BBC Sport's David Coulthard: "It's been very close all weekend. The start is an opportunity I need to go for but it's going to be difficult because I'm on the outside. There is always a safety car in Canada so that's another opportunity."
Al Pacino in the house
Hoo-ha!
The starting grid
Pole no guarantee of victory
The Canadian Grand Prix pole-sitter has only won the race five times since 2000, so there's every reason for his rivals to head into today's race with optimism.
That said, Hamilton can lay claim to two of those wins in 2007 and 2010. The others were Michael Schumacher (2000), Fernando Alonso (2006) and Sebastian Vettel (2013).
Anthem sung. The race is fast approaching
Your wish is our command
Mrs P. M. Dawn of Chipping Sodbury writes: "Why oh why oh why does the BBC not show more piggy-backs with a combined age of 151? What do I pay my licence fee for?"
Well, Mrs Dawn, I think we can help you there.
Refuelling plans set to be shelved
Andrew Benson
Chief F1 writer
"The potential return of refuelling for 2017 has been a focal point in the last three weeks or so, since the strategy group agreed to explore the idea. But it seems pretty much dead in the water.
"As we wrote earlier this weekend, the teams have effectively said there are no benefits to it, only negatives. Mercedes F1 boss Toto Wolff said: 'When we discussed it in the strategy group, it didn't have a lot of support. We agreed to explore it, to discuss it in the technical regulations meeting and the sporting regulations meeting, and analyse it properly. The feedback was 100% negative - too expensive, not safe enough, detrimental to the races and strategies. So it will go back in the strategy group and my opinion is it shouldn't happen. I'm not keen on getting refuelling back into F1.'
"There is still the question of whether refuelling's two biggest proponents - Donald MacKenzie of commercial rights holder CVC and Ferrari president Sergio Marchionne - can be talked down. One senior insider admitted that was a concern, only to add: 'It's not going to happen'."
Montreal 'really attacks your senses'
David Coulthard
BBC F1 co-commentator
"The Circuit Gilles Villeneuve really attacks your senses. You come from Monaco, the slowest circuit on the calendar, to one of the fastest. There is no room for error and there are a lot of incidents and accidents here."
Heading to the grid...
Uncertainty over strategy
Andrew Benson
Chief F1 writer
"The teams are unsure whether this will be a one-stop or a two-stop race. That's largely because the rain on Friday meant they have less information than normal. For the front-runners, the first stops will be around lap 13-15 and teams will have to decide on the fly the strategy for the rest of the race depending on the degradation of the 'soft' tyre they will most likely use in the second stint.
"They should know by 10 to 15 laps into that stint. Some in the second half of the grid may start on the soft and see how it goes. A pit stop takes about 17.5 seconds in total and the chances of a safety car are put at 60%."
Lauda dons a sweater
The sight of Niki Lauda putting on a sweater against the Montreal elements is a SURE SIGN IT'S GOING TO RAIN!
Maybe.
Quick weather update
Ian Fergusson (BBC Weather) on Twitter: Dry; higher-level cloud continuing to thicken this afternoon, with any sunshine increasingly diffuse/hazy. 21C.
But...there are some dark clouds overhead. Interesting.
Montreal moments: 'What bitter, bitter gall for Mansell!'
The 1991 Canadian Grand Prix was the scene of one of those last-lap failures so rarely seen these days.
Leading by a country mile, Nigel Mansell was so confident at the wheel of his Williams that he waved to the crowd after the first corner of his final lap.
But disaster struck as he exited the hairpin further round the lap, the FW14 slowing to a crawl, allowing the Benetton of Nelson Piquet to come through for his 23rd and final career win.
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Sauber on Twitter: Our guys are on their way to the starting grid...
Get involved - race predictions #bbcf1
Heil Shia: I hope that Bottas can take it, but I think it'll be Hamilton, Rosberg, Bottas then maybe Raikkonen and Massa unless Mercedes are struck with reliability issues.
Haydn Millington: 1) Hamilton 2) Raikkonen 3) Vettel. Vettel passes nearly everyone, Rosberg retires with mechanical failure.
Maria Read: After the Monaco fiasco I think Mercedes will throw everything they have into supporting Lewis to win.
Canada loves a safety car
The Canadian Grand Prix could tell you a thing or two about safety cars.
The first ever F1 safety car was deployed in the 1973 Canadian GP at Mosport Park, although it was a fairly ignominious debut.
A Porsche 914, piloted by former F1 driver Eppie Wietzes, mistakenly picked up Howden Ganley instead of leader Emerson Fittipaldi, an error that allowed a number of drivers to make up a lap on the field.
One of the drivers to benefit was McLaren's Peter Revson, who amid confused scenes at the chequered flag was ultimately declared the winner, despite the counter-claims of both Fittipaldi and Ganley.
Of the last 17 Canadian GPs, 11 have been interrupted by safety car periods, with the 1999 and 2007 races both having four separate appearances, while in 2011 32 of the 70 laps were run behind the safety car, which came out a record six times.
The 1999 race was the first ever to finish during a Safety Car period, and it happened again last season, making it the only track on which it has happened twice.
Post update
Red Bull on Twitter: Things are heating up in Montréal. Got a "thermie" of Toro Rosso's Max Verstappen.
What the papers say
The Sun on Sunday say that Lewis Hamilton recovered from his "Monaco meltdown" by taking pole position in Montreal. They claim the world champion arrived in Canada "still reeling from his Mercedes team's bungle which wrecked his chances of winning in Monte Carlo".
'Very hard on the car'
Eddie Jordan
BBC F1 chief analyst
"The drivers love it here because it's a change from Europe and Asia. The people here are special. There have been a lot of surprise race winners. It's a very difficult circuit and very hard on the car."
Pastor masters Montreal
Third-row lockout for impressive Lotus
Andrew Benson
Chief F1 writer
"Lotus have looked strong all weekend and Romain Grosjean and Pastor Maldonado delivered on their practice promise to line up fifth and sixth on the grid, their strongest team showing since 2013.
"The performance caught the team a little by surprise - trackside operations director Alan Permane had said on Thursday it would be 'business as usual'. But he explained that the Lotus was strong on braking and traction, two pre-requisites of a strong car in Montreal. And of course it has the Mercedes engine, which has a combination of power, torque and tractability that remains unmatched - as evidenced by the fact that both Force Indias were also in the top 10."
Constructors' standings
Montreal moments: Villeneuve wins home race
The 1978 Canadian Grand Prix was fittingly the scene of Gilles Villeneuve's first of six wins in F1.
The French-Canadian driver took the victory in his 19th career outing after long-time leader Jean-Pierre Jarier retired with an oil problem in the Lotus 79.
The Ile-Notre Dame circuit changed its name to the Circuit Gilles Villeneuve in 1982, following his fatal accident at Zolder earlier that year.
Don't count on the pole man
Drivers' standings top 10
Honda weather first backlash
Andrew Benson
Chief F1 writer
"People have been very patient with Honda so far this season, accepting that the company started late on its F1 engine, probably entered too early, and is effectively doing 'R&D in the public domain', as Mercedes engine boss Andy Cowell put it a couple of races ago.
"However, a backlash was inevitable and it came on Saturday afternoon, after a poor weekend for the Japanese company that has required engine changes on both cars because of failures and Jenson Button starting from the back of the grid, and with a drive-though penalty for fitting a new turbo and MGU-H to replace those that failed on Saturday. Fernando Alonso could manage only 14th - although will start 13th following Max Verstappen's penalty.
"As a result, Honda F1 boss Yasuhisa Arai got a bit of a going-over in the post-qualifying news conference. He admitted he was 'not satisfied and very sad', and that it had been a 'tough' weekend. As the pointed questions poured in, Alonso and Button, sitting either side of Arai, had their heads down, the peaks of their caps preventing onlookers discerning their expressions.
"Arai promised 'more horsepower in the near future' and that 'in the middle of the second half of the season we can expect good competition with top-level teams'. Not only does that seem an ambitious claim, but if it does not happen those difficult questions will only get louder."