Max Verstappen has been summoned to the stewards after allegedly failing to slow for the yellow flags at Turn 17, when Valtteri Bottas crashed.
So, no investigation into Verstappen's flying lap it seems, but it's all to play for tomorrow. The Dutchman starts on the front for the second time in his career, with his new-found rival Charles Leclerc next to him.
The two old world champions of Sebastian Vettel and Lewis Hamilton start behind the kids in third and fourth, and Valtteri Bottas' starting position will depend on what parts will be replaced on the car.
But Max Verstappen has won here twice before, and if he does it again tomorrow, it will make him the most successful driver at a Mexican Grand Prix.
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Adios amigos!Copyright: BBC
BBC Sport’s chief F1 writer
Red Bull's Max Verstappen took a stunning pole position at the Mexican Grand Prix ahead of the Ferraris of Charles Leclerc and Sebastian Vettel.
Verstappen beat Leclerc by 0.266 seconds as Mercedes' Valtteri Bottas crashed trying to improve on his sixth place.
Lewis Hamilton, who will win the championship one Sunday if he finishes 14 points ahead of Bottas, starts fourth, ahead of Red Bull's Alexander Albon.
There are questions, however, as to whether Verstappen slowed sufficiently for Bottas' crash.Copyright: BBC
A reminder of what Hamilton needs to do to win his sixth world title tomorrow, as he pursues 14 points for the silverware.
However, it seems more likely that he'll win next week in Austin instead, so you don't have to read the next seven bullet points.
• Win, plus fastest lap with Bottas lower than third
• Win with Bottas lower than fourth
• Second plus fastest lap with Bottas lower than seventh
• Second with Bottas lower than seventh
• Second with Bottas lower than eighth if Bottas sets fastest lap
• Third and fastest lap with Bottas lower than eighth
• Third with Bottas lower than ninth
Lewis Hamilton says he was happy with the performance, despite being three places from pole: "In that last sector, it all went to pot. I'm generally happy with today - it's hard to keep up with the others. We knew it would be difficult this weekend but I gave it everything, it wasn't enough for pole and I got enough out of the car and it puts us in a good enough fighting position for tomorrow.
"The Red Bulls are quick on their long runs so it will be interesting to see whose tyres last the longest, that will be the name of the game tomorrow."
If F1 took a leaf out of Formula E's book and gave points for qualifying... Hamilton still wouldn't be any close to those 14 he needs to claim the title this weekend, because he qualified fourth.
But according to Jennie, he did say he misses being the fastest driver.
Valtteri Bottas is ok. But his car is not. Mercedes have said: "The car is extensively damaged, we are assessing exactly what work needs to be completed for it to be ready to race."
A change of parts likely?
Andrew Benson says: "A gearbox change - likely in the circumstances - would mean a five-place grid penalty. Will there be other issues, too?"
A possible pitlane start, perhaps?
We'll stop guessing.
Undead Simon Jessy: It all depends on when the double yellows were deployed. Max Verstappen went purple in the final sector, so IF the yellows were waving it should be an automatic grid penalty.
That was a nasty crash, and a nasty way to end a good day out for Bottas after being P3 in final practice earlier.
Deleted or not, his lap provisional pole lap was quick enough.
Former Sauber driver, Marcus Ericsson, who was on 5 live earlier has his say on the matter...
So... should Max Verstappen have his lap time deleted for not backing off in that flying lap after seeing Bottas had crashed?
It's causing quite the stir in the media centre.
Let us know your thoughts via the #bbcf1 hashtag.
Over to Niamh Lewis now to take you through the rest of this page...
Chris Lord: If times deleted by Verstappen & Hamilton for completing their laps it wouldn’t make a difference to the grid. Ferrari seem not happy so wouldn’t surprise me if further penalties arranged.
Stephen Taylor: Verstappen did great laps, should be penalised with a grid penalty for ignoring yellow flags.
Sebastian Vettel who qualified on the second row in third, says: "I had a mistake on my first run so I was quite confident on the second run I could make up for it but it was a double yellow so I had to slow down.
"The car was good I would like to be further up but we’ll see tomorrow it’s a long race and we had the speed.
"We need a good start then take it from there - it’s along race, it will be a tough one on brakes and cooling in general and tyres. All top six cars opt to start on medium tyre so we see who dares to go the longest."
Charles Leclerc, who starts second tomorrow, says: "The start will be very important, the top speeds we have are very good so hopefully we can take that on."
Max Verstappen has taken his second pole position. He says: "It's been an interesting day but to come out top is incredible. Ferrari have been really quick on the straights, so to come out and take pole here is great.
"We kept bringing out new parts to the car and it showed today, we are very quick. We always hope we keep pushing and try to find the right balance and in Q3 it all came together.
"It will be a bit different starting first instead of second [on the grid] so I'll give it all and we have a good race car anyway so if something happens at the beginning we can get it done."
Apparently Ferrari are unhappy, saying that both of their drivers backed off on their last lap thinking there was a yellow flag for that Bottas crash.
Red Bull boss Christian Horner has just told Sky Sports that he believed there had not been a yellow flag before Verstappen crossed the line for his final lap.
We may be hearing more of this one.