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Live Reporting

Lawrence Barretto

All times stated are UK

Get involved

  1. Join us tomorrow at 19:00 GMT

    Lewis Hamilton and Nico Rosberg

    It all fell apart when it mattered for Lewis Hamilton. The Briton was hampered with brake problems in qualifying as Nico Rosberg cruised to pole position.

    Hamilton has won the last four races, though, and had no problem catching and passing Rosberg to secure victory on a number of occasions this season. Will it all come good tomorrow? I can't wait to find out. Until then, it's goodnight from me.

  2. Post update

    I'll be back at 19:00 GMT tomorrow to begin building up to the 2014 United States Grand Prix, round 17 of the Formula 1 World Championship. BBC Radio 5 live join us at 19:30 with the lights going out at 20:00. Highlights of the race will be available on BBC One at 22:30.

  3. Post update

    Catch up with that session here or wait until 22:00 GMT when the highlights go out on BBC Two and online. And don't forget we'll have all the latest news from the Austin paddock on the F1 pages and @bbcf1 throughout the evening.

  4. Post update

    Lewis Hamilton looks relaxed, with no sunglasses in sight, as he carries out a number of TV interviews in the paddock. If the 2008 world champion can get his brakes sorted for the race, he'll know that victory is still a possibility tomorrow evening.

  5. Get involved #bbcf1

    Adeel Ejaz: Feel sorry for Lewis Hamilton. The brake issues need to be sorted for the race tomorrow!

    Vicky Sanderson: Not quite 'hammer time' for Hamilton.

  6. Qualifying result

    1) Nico Rosberg 2) Lewis Hamilton 3) Valtteri Bottas 4) Felipe Massa 5) Daniel Ricciardo 6) Fernando Alonso 7) Jenson Button 8) Kevin Magnussen 9) Kimi Raikkonen 10) Adrian Sutil

    11) Pastor Maldonado 12) Sergio Perez 13) Nico Hulkenberg 14) Daniil Kvyat

    15) Jean-Eric Vergne 16) Esteban Gutierrez 17) Sebastian Vettel 18) Romain Grosjean

  7. Post update

    Nico Rosberg, Valtteri Bottas and Lewis Hamilton

    "Nico did a great job," says Lewis Hamilton, who starts second. "I was struggling with braking. The left brake was always about 100 degrees less than the right, and kept catching, no matter what I did - even if I braked earlier, it was still locking.

    "Perhaps that's where I lost a lot of the time. Even if that was the case Nico was quicker today. Potentially [the braking] is a problem for the race so we need to see if they can scrub them down or something."

  8. Post update

    "It was a pretty good qualifying again for me," says Valtteri Bottas, who starts Sunday's race in third. "I'm pleased with two good laps in Q3 and happy to have locked out the second row for the team (Williams team-mate Felipe Massa starts fourth) It's an important race as we try to keep a good position in the constructors' championship."

  9. Post update

    Nico Rosberg

    "Great day, very happy," says Nico Rosberg, who will start on pole. "It worked out really well. Together with my engineers, I arrived in qualifying with a car that I was really happy with for qualifying.

    "This morning, the conditions were quite different so it wasn't easy to get everything right. First place today is awesome, but the race is what counts, so I need to fully focus on tomorrow and try and bring it home. Of course the start is going to be important, I need to make the most of that and stay ahead."

  10. Post update

    It's time for the top three news conference and they all look delighted to be there.

  11. Post update

    Nico Rosberg

    Mercedes on Twitter: IT'S POLE FOR @nico_rosberg in Texas! Stunning, stunning lap - top job that man!!

  12. Get involved #bbcf1

    Vicky Sanderson: Rosberg shows why he can be champion, playing Hamilton at his own game. Epic!

    Patrick: DAMN IT! Unlucky Lewis, there is always tomorrow.

    Bishop Yinkus: That was a real marker from Rosberg, could Hamilton be nursing feeling about his break? All credit to Nico.

  13. Post update

    Nico Rosberg and Valtteri Bottas are kept waiting for the top three qualifying photo by Lewis Hamilton. The 2008 world champion turns up, sunglasses on. A couple of short, sharp handshakes follow.

    Lewis Hamilton, Nico Rosberg and Valtteri Bottas
  14. Post update

    McLaren's Jenson Button will start 12th, having qualified seventh, as he has a five-place grid penalty for a gearbox change.

  15. Post update

    Nico Rosberg's streak of consecutive front row starts moves onto nine. He now leads Mercedes team-mate Lewis Hamilton 10-7 in the qualifying head-to-head.

  16. Top 10 result

    1) Nico Rosberg 2) Lewis Hamilton 3) Valtteri Bottas 4) Felipe Massa 5) Daniel Ricciardo 6) Fernando Alonso 7) Jenson Button 8) Kevin Magnussen 9) Kimi Raikkonen 10) Adrian Sutil

  17. Post update

    "Great job guys, thank you very much," says Nico Rosberg on team radio. That's his ninth pole position of the season.

  18. Pole position

    us gp

    Nico Rosberg takes pole position for the United States Grand Prix.

  19. Chequered flag

    Nico Rosberg goes even quicker with a 1:36.067 to go 0.376 seconds clear! Lewis Hamilton isn't looking too quick in the middle sector...

  20. Post update

    So Valtteri Bottas will cross the line first, followed by Nico Rosberg, Felipe Massa and Lewis Hamilton. Two minutes to go.

  21. Post update

    The pit lane empties as all 10 cars head out for one final run. Three minutes until the chequered flag. Lewis Hamilton has it all to do.

  22. As it stands

    With five minutes to go, everyone heads back to the pits. Only nine cars have set a time. Adrian Sutil has chosen to stay in the garage.

    1) Ros 2) Ham 3) Bot 4) Mas 5) But 6) Mag 7) Alo 8) Ric 9) Rai

  23. Post update

    Valtteri Bottas is third quickest, with Felipe Massa fourth and Jenson Button fifth.

  24. Post update

    us gp

    No he can't. Lewis Hamilton goes second with a 1:36.443, just over a tenth off the pace.

  25. Post update

    Mercedes on Twitter: Purple S1 for Nico, purple S2 for Lewis, so close!

  26. Post update

    Advantage Nico Rosberg, the German clocking a 1:36.282. Can Lewis Hamilton beat that?

  27. Get involved #bbcf1

    Frazer Dart: I'm disappointed the Force Indias are out. Would've liked to have seen HUL and PER do well. Hopefully a good race tomorrow for them.

    Sean Craddock: That time from Rosberg is ridiculous! This is going to be a fast Q3!

    Tom: If there is a plus side to the Marussia and Caterham teams not competing, it's that all 18 drivers fit into my laptop screen.

  28. Post update

    Daniel Ricciardo lays down the first marker, a 1:38.120 in the Red Bull. The Mercedes and Williams should have no problem beating that, though.

    us gp
  29. Final qualifying starts

    So this is it. The final part of qualifying. The bit that matters. Who will seize the day?

  30. Post update

    Jennie Gow

    BBC Radio 5 live pit-lane reporter

    "We're hearing that Caterham's Marcus Ericsson and [Sauber reserve driver] Giedo van der Garde have signed for Sauber. So Sutil might not have a seat for next year."

    Sauber F1 driver Adrian Sutil
  31. Get involved #bbcf1

    Ed Stevens: Hamilton to take pole. Would love to see Bottas and Ricciardo next in line.

    My Old RE Teacher: Complaints about F1 costs? Remember when top teams had engines just for qualifying? Things changed, but F1 will always be expensive!

    Carol Bolger: Important laps ahead come on @LewisHamilton.

  32. In

    1) Nico Rosberg 2) Lewis Hamilton 3) Felipe Massa 4) Valtteri Bottas 5) Daniel Ricciardo 6) Fernando Alonso 7) Jenson Button 8) Kevin Magnussen 9) Kimi Raikkonen 10) Adrian Sutil

  33. Out

    11) Pastor Maldonado 12) Sergio Perez 13) Nico Hulkenberg 14) Daniil Kvyat

  34. Post update

    Sauber on Twitter: P10 for Adrian and first time in Q3 this year! #pushpush

  35. Post update

    That was some lap from Adrian Sutil, who scrapes into the top 10 for the first time this season in the Sauber. The German sounds pretty calm as his engineer gives him the good news, but you can here whooping in the background as team members on the pit wall celebrate the result.

    Sauber F1 driver Adrian Sutil
  36. Post update

    Good lap from Nico Rosberg, on a fresh set of soft tyres. The German clocked a 1:36.290, the fastest time of the weekend, to go one second clear of Lewis Hamilton.

  37. Second qualifying ends

    Nico Rosberg sets the fastest time in the second part of qualifying for the United States Grand Prix.

  38. Post update

    Interestingly, Nico Rosberg has come back out for one more run. Meanwhile, Nico Hulkenberg, Daniil Kvyat, Adrian Sutil and Pastor Maldonado are in the drop zone.

  39. Post update

    Felipe Massa pulls a very quick lap out of the bag to move into third, 0.248 seconds off the pace set by Nico Rosberg. His Williams team-mate Valtteri Bottas improves, too, moving into fourth, 0.4 seconds adrift of Rosberg.

    us gp
  40. Post update

    The top five - Nico Rosberg, Lewis Hamilton, Fernando Alonso, Jenson Button and Kevin Magnussen - are in the pits, seemingly confident they've done enough to make it through to Q3. Four minutes to go.

  41. Post update

    us gp

    The latest celebrity to have a nosey in the Red Bull garage is Pamela Anderson, of Baywatch fame.

  42. As it stands

    Here's how things stand with seven minutes remaining:

    1) Ros 2) Ham 3) Alo 4) But 5) Mag 6) Bot 7) Ric 8) Rai 9) Mas 10) Kvy

    Drop zone: 11) Hul 12) Sut 13) Mal 14) Per

  43. Post update

    Kevin Magnussen moves fourth, but he's bumped down a place by McLaren team-mate Jenson Button. The gap is just 0.023 seconds. It's been so close between the pair all weekend.

  44. Get involved #bbcf1

    Daniel Ricciardo

    Anna Baker: Hoping Daniel Ricciardo does a better job of qualifying than he has on his facial hair.

  45. Reaction

    Lotus's Romain Grosjean on 5 live, who qualified 18th and last: "It's a disaster. The car never had anything to give me."

  46. Post update

    Nico Rosberg goes quickest with a 1:37.099, with Fernando Alonso slotting into second, 0.911 seconds further back. Lewis Hamilton doesn't set the timesheets alight, but his lap of 1:37.287 is good enough for second. Both Mercedes drivers should comfortably get through to Q3 with those times.

  47. Post update

    Valtteri Bottas sets the early pace with a 1:38.094, with Kimi Raikkonen slotting into second three tenths adrift.

  48. Post update

    Lewis Hamilton is reminded that the tyres he is on could be his race set. What he means is that the set of tyres that drivers use to set their quickest time in this session will be the set they start the race on, so they understandably don't want to take too much life out of the rubber.

  49. Second qualifying starts

    Another four drivers will get the boot at the end of this session, leaving 10 to fight it out for pole. Here we go...

  50. Post update

    Daniil Kvyat

    Kevin Magnussen and Daniil Kvyat (pictured) remain the only drivers in the current entry never to have failed to make it through from Q1 to Q2.

  51. Post update

    Nico Rosberg's run on the soft tyres was unspectacular and he ended up fourth, 1.1 seconds behind his team-mate and title rival Lewis Hamilton.

    Impressive from Sauber's Adrian Sutil and Lotus' Pastor Maldonado to make it through to Q2.

  52. In

    1) Lewis Hamilton 2) Felipe Massa 3) Valtteri Bottas 4) Nico Rosberg 5) Fernando Alonso 6) Kevin Magnussen 7) Jenson Button

    8) Pastor Maldonado 9) Kimi Raikkonen 10) Daniel Ricciardo 11) Adrian Sutil 12) Nico Hulkenberg 13) Daniil Kvyat 14) Sergio Perez

  53. Out

    15) Jean-Eric Vergne 16) Esteban Gutierrez 17) Sebastian Vettel 18) Romain Grosjean

  54. First qualifying ends

    Mercedes F1 driver Lewis Hamilton

    Lewis Hamilton finishes fastest in the first part of qualifying for the United States Grand Prix.

  55. Post update

    Lewis Hamilton goes quickest with a 1:37.196, 0.681 seconds ahead of Williams' Felipe Massa with Valtteri Bottas a further three tenths off the pace.

    One minute to go. Jean-Eric Vergne, Esteban Gutierrez, Sebastian Vettel and Romain Grosjean are in the drop zone.

  56. Post update

    Lewis Hamilton and Nico Rosberg have both gone out on a set of soft tyres. Interesting considering they comfortably occupy the top two spots on the timesheets.

  57. Post update

    McLaren driver Kevin Magnussen during qualifying

    Kevin Magnussen pops into third in the McLaren. Great effort from the Dane. Pastor Maldonado is looking strong, too - and it's not often I've been able to say that this season. The Lotus driver is currently seventh.

  58. As it stands

    Here's the order with five minutes remaining:

    1) Ros 2) Ham 3) Bot 4) Mal 5) Ric 6) Mas 7) Sut 8) Per 9) But 10) Alo 11) Vet 12) Mag 13) Gro 14) Rai

    Drop zone: 15) Gut 16) Hul 17) Kvy 18) Ver

  59. Post update

    Nico Rosberg improves, clocking a 1:38.303 to move half a second clear of team-mate Lewis Hamilton, who is still in the pits.

  60. Post update

    Lewis Hamilton reports a "big flat spot" adding "I can't continue". The Mercedes driver backs right off and retreats to the pit lane.

  61. Post update

    us gp

    There was plenty of chat ahead of this weekend that Sebastian Vettel wouldn't bother with qualifying because of the penalties for taking a sixth engine - but the German is out and about and going pretty quickly. The four-time world champion clocks a 1:39.621 for the ninth quickest time.

  62. Post update

    us gp

    Nico Rosberg is our new leader, the German clocking a 1:38.599, 0.196 seconds clear of Lewis Hamilton with Valtteri Bottas third and Felipe Massa fourth.

  63. Post update

    With 11 minutes to go, 12 of the 18 drivers have set a time. Daniel Ricciardo and Sebastian Vettel are the only two drivers who have yet to leave the garage.

  64. Get involved #bbcf1

    Kayleigh Gray: Nico on pole and Jenson in top 5 would be excellent.

    Jeremiah Kariuki: Unless there are errors or reliability issues, Lewis Hamilton gets pole. Won't be a shock if one of the Williams take 2nd ahead of Nico!

    Robert Houghton: Hope one of the McLarens shake up the front row in Austin.

  65. Post update

    Valtteri Bottas is our new leader now, the Finn clocking a 1:38.811 in the Williams on the medium tyres. Lewis Hamilton then nips ahead, just 0.016 seconds clear. The 2008 world champion is on the medium tyres, too.

  66. Post update

    Sergio Perez, on the soft tyres, clocks a 1:39.804 to set the early pace, but that is belittled by Nico Rosberg who romps round in a 1:38.848 on the medium tyres. That should be enough to get him into Q2.

  67. First qualifying starts

    Force India driver Sergio Perez opens qualifying

    And we're away with Force India's Sergio Perez the first man to head out and about.

  68. Post update

    Just four minutes until kick off. Don't forget that you can fire over your pole position predictions to us via the #bbcf1 hashtag, 81111 (UK only) or by leaving a comment on the BBC Sport Facebook page.

  69. Post update

    The BBC Radio 5 live team will be up and running shortly, providing you with commentary throughout qualifying. You can listen to James Allen and the team by clicking the speaker button at the top of this page. You'll also find a highlights tab which has all of the best video from the weekend so far. Enjoy.

  70. Get involved #bbcf1

    Hannah Smith: For pole position: my heart says Williams but my head says Mercedes.

    Lucas Murrin: Funding needs to be fairer for all teams to have a chance of competing, reliance on pay drivers isn't the future.

    Dustin Hodges: Go Nico go! Texas is behind you! America is behind you! Germany is behind you!

  71. Post update

    If Lewis Hamilton takes pole today he will equal team-mate and title rival Nico Rosberg's tally of eight with two races remaining. The battle for the Pole Position trophy, new for this season and awarded to the best qualifier, will still very much be up for grabs.

  72. Post update

    Sebastian Vettel

    It's been a tough weekend Sebastian Vettel, the reigning four-time world champion. The German, who has been comprehensively beaten by his team-mate Daniel Ricciardo this season, is now paying for the poor reliability that affected him earlier this season.

    A sixth power unit change and the penalties that come with it means he will start from the pit-lane on Sunday no matter where he qualifies. The German has been last in all three practice sessions as he focused on race pace. He'll make an appearance in qualifying but it'll be a brief one, as the team look to save mileage on the unit.

  73. Post update

    Daniel Ricciardo, Keanu Reeves and Sebastian Vettel

    Actor Keanu Reeves, star of Speed and The Matrix trilogy, is in town for qualifying, the 50-year-old popping into the Red Bull garage for a chat with Australian Daniel Ricciardo and four-time world champion Sebastian Vettel.

  74. Get involved

    So who is your tip for pole position? Has Lewis Hamilton got it nailed? Will Nico Rosberg hit back? Can the Williams, who look to be Mercedes closest challengers in Austin, cause a shock and get on the front row? Tweet us using the #bbcf1 hashtag, text 81111 (UK only) or leave a comment on the BBC Sport Facebook page.

  75. Post update

    Andrew Benson

    Chief F1 writer

    "The demise of Caterham and Marussia has self-evidently meant that the number of cars that get knocked out in the first and second parts of qualifying will change this weekend - as it is not physically possible to knock out six drivers each time. The rules actually don't specify what happens if the grid drops below 20 cars, but the stewards have done the obvious, and split in half the remaining eight cars that by definition cannot make it into the top 10 shoot-out. So four will be eliminated after Q1 and another four after Q2."

  76. Post update

    Qualifying is going to be a little bit different this weekend, with Marussia and Caterham's absence meaning we'll have just 18 cars on the grid. Here's Andrew Benson with more on the tweaks...

  77. Post update

    Circuit of the Americas

    Hello and welcome to live coverage of qualifying for the United States Grand Prix. Austin, the live music capital of the world, is our host for round 17 of the Formula 1 World Championship. Let's do this.

  78. Post update

    Lewis Hamilton

    It's been a good, no make that great, weekend for Lewis Hamilton so far. The Briton finished top of the pile in both practice sessions on Friday and did the same in final practice earlier today. Can he make it four out of four with his eighth pole position of the season?

  79. Post update

    us gp

    Qualifying starts at 18:00 GMT with the live text build-up starting at 17:30. Championship leader Lewis Hamilton is the man to beat in qualifying, but can Nico Rosberg pull off a shock when it matters and steal pole? Not long until we find out. See you in a bit.

  80. Post update

    Catch up on that session here and check out the F1 pages for some cool video and the latest news from the Austin paddock.

  81. Post update

    So that's three out of three of Lewis Hamilton in Austin, the Briton topping the times in first, second and third practice.

    Sebastian Vettel has also achieved a hat-trick, but his is unwanted. The German, who didn't bother doing a qualifying run because he will be starting from the pit lane after being penalised for taking a sixth engine, finished last for the third successive session.

  82. Final practice result

    1) Lewis Hamilton 2) Nico Rosberg 3) Felipe Massa 4) Valtteri Bottas 5) Fernando Alonso 6) Daniel Ricciardo

    7) Nico Hulkenberg 8) Adrian Sutil 9) Kimi Raikkonen 10) Jenson Button 11) Kevin Magnussen 12) Pastor Maldonado

    13) Romain Grosjean 14) Sergio Perez 15) Daniil Kvyat 16) Esteban Gutierrez 17) Jean-Eric Vergne 18) Sebastian Vettel

  83. Post update

    Nico Rosberg's qualifying simulation run was delayed because of a glazed brake disc and then he was baulked just before he was about to start his flying lap so his preparations were less than ideal.

  84. Chequered flag

    us gp

    Mercedes' Lewis Hamilton goes quickest in final practice for the United States Grand Prix in Austin, Texas.

  85. Post update

    Nico Rosberg does improve, but only by 0.001 seconds, so he remains second, well behind team-mate and title rival Lewis Hamilton. One minute to go.

  86. Post update

    Nico Rosberg moves into second, but it's 0.884 seconds slower than Mercedes team-mate Lewis Hamilton. The German had to back off before starting that flying lap to ensure there was a big enough gap between himself and Sebastian Vettel and then made a couple of small errors. Expect him to go quicker on his second lap.

  87. Post update

    us gp

    Ferrari: We've got Bucky Lasek in the garage - a skateboard legend.

  88. Post update

    But Lewis Hamilton takes that time from Felipe Massa and smashes it out of the park. The Briton clocks a 1:37.107, 1.1 seconds quicker than the Williams. Rather depressingly for the chasing pack, Mercedes' margin over the field looks to be growing.

  89. Post update

    us gp

    Felipe Massa fastest now, the Williams starting to show their pace after their trademark quiet start to the race weekend. The Brazilian clocks a 1:38.214, 0.223 seconds quicker than team-mate Valtteri Bottas.

  90. Post update

    Fernando Alonso improves on his second lap on the soft tyre, improving by half a second to move to 0.390 seconds of Valtteri Bottas.

  91. Post update

    Valtteri Bottas becomes the first man to get into the 1m38s this weekend, the Finn clocking a 1:38.437, 0.671 seconds quicker than Fernando Alonso. That was a pretty feisty lap from Bottas, the rear end of that Williams looking racey.

  92. Post update

    And it's no surprise to see Fernando Alonso go quickest with a 1:39.108 on the soft tyres, nearly six tenths quicker than Daniel Ricciardo.

  93. Post update

    Fernando Alonso is the first of the frontrunners to head out on the soft tyres. His Ferrari team-mate Kimi Raikkonen follows suit shortly after.

  94. Post update

    usgp

    Williams: Valtteri lays some rubber in the box.

  95. Post update

    Lewis Hamilton retreats back to the pits so the team can give his Mercedes the once over. Meanwhile, Nico Rosberg goes off at the same corner and then again at Turn 15.

  96. Spin!

    Lewis Hamilton has found himself facing the wrong way after spinning down at Turn 12. The Briton lost the rear end on turn-in and then slid into the ample run-off.

  97. Post update

    Lewis Hamilton goes fifth, on the medium tyres, with a 1:40.064, 0.371 seconds off the pace.

  98. Flashback

    indy 2001 coulthard and michael schumacher

    Thirteen years ago, David Coulthard and Michael Schumacher were in their prime, fighting for the world title. Pictured here at the 2001 United States Grand Prix at Indianapolis, a race won by Mika Hakkinen incidentally, Schumacher went on to win the title, finishing 58 points clear of Coulthard in second.

  99. Get involved

    Mark Jones: I think the WDC is far from over. One retirement for Ham and a win for Ros puts Ros right back in the lead of the WDC.

  100. Post update

    So Daniel Ricciardo leads the way, one tenth clear of Valtteri Bottas with Felipe Massa a further tenth back in third. Here's how they stand...

    1) Ric 2) Bot 3) Mas 4) Alo 5) Kvy 6) Rai 7) Gro 8) Mag 9) But

    10) Hul 11) Mal 12) Sut 13) Per 14) Ver 15) Gut 16) Vet 17) Ros 18) Ham

  101. Post update

    The only two drivers who have yet to set a time are Lewis Hamilton and Nico Rosberg. Both Mercedes remain parked in the garage with 30 minutes gone and 30 minutes remaining.

  102. Post update

    Gerhard Berger at Japanse Grand Prix

    Today marks 27 years since Gerhard Berger won the 1987 Japanese GP, ending what was then a two-year winless streak for Ferrari, as opposed to the 18-month winless streak they currently endure. Judging by the pace of that car, that miserable streak is set to continue for a while yet.

  103. Post update

    Daniel Ricciardo heads out and immediately pumps in the quickest time with a 1:39.693, one tenth quicker than Williams' Valtteri Bottas.

  104. Get involved

    PhilSlocombe: Lewis has the momentum over Nico. A win on Sunday (5th in a row), should see him go on to win the WDC, subject to reliability.

    Justice Kavahematui: Pound for pound @LewisHamilton has shown that he is a better driver than Nico. Let's hope they both get a reliable machine.

    Have your say using the #bbcf1 hashtag, text 81111 (UK only) or leave a comment on the BBC Sport Facebook page.

  105. Post update

    Felipe Massa dips down into the 1m39s as he goes quickest with a 1:39.820. one second quicker than Kevin Magnussen. Jenson Button is third, a few thousandths back, with Valtteri Bottas fourth and Force India's Nico Hulkenberg.

  106. Post update

    It's much cooler in Austin now than it's expected to be later on for qualifying, so that may explain why the bigger teams are choosing not to go out.

  107. Post update

    Lewis Hamilton returns to the pits, having completed two installation laps. His team-mate Nico Rosberg hasn't been out yet - and he's not even in his car. There's a bit of work going on at the rear. The Red Bulls of Sebastian Vettel and Daniel Ricciardo are sitting tight for now, too.

  108. Post update

    Kevin Magnussen sets the early pace, the Dane clocking a 1:41.567, four tenths quicker than Force India's Sergio Perez.

  109. Post update

    Lewis Hamilton

    Lewis Hamilton does a practice start before heading out on track for his first foray under bright blue skies in Austin. His Mercedes team-mate and title rival Nico Rosberg is staying put in the garage for now.

  110. Post update

    Andrew Benson

    Chief F1 writer

    "The collapse of the Marussia and Caterham teams has heighted an existential crisis that has been going on all season. Force India's deputy team principal has been very outspoken in Austin, accusing the big teams and commercial rights holder of an 'agenda' and saying the sport is not sustainable. The bosses of the big teams agree something needs to be done, but point out that criticisms of the split of revenues are misguided, saying that of course the more valuable brands such as Ferrari should receive more money because they are more important for the sport.

    "Mercedes team boss Toto Wolff said teams had an 'entrepreneurial responsibility' to only spend what they had. He admitted that 'if we could reinvent F1 on a white sheet of paper maybe the distribution model would be a different one', but added: 'We need to not push the panic button but to protect the smaller teams. We need to stick our heads together and decide what we do.'"

  111. Go! Go! Go!

    The lights at the end of the pit lane have flicked to green which can only mean one thing. It's time for final practice!

  112. Post update

    Jennie Gow

    BBC Radio 5 live pit-lane reporter

    "Daniil Kvyat will take a 10-place grid penalty for changing his engine. It will be his seventh, when only five are allowed. This follows Red Bull's Sebastian Vettel's own penalty - starting from the pit lane - for an entire new engine. Both cars use Renault engines."

  113. Post update

    BBC Radio 5 live sports extra

    James Allen is up and running in the commentary box, with Jennie Gow and Tom Clarkson down in the pit lane. You can listen on BBC Radio 5 live sports extra by clicking the link at the top right of this page.

  114. Post update

    Standings

    Time for some title talk... Lewis Hamilton leads Nico Rosberg by 17 points, but there are still 100 points remaining, with 50 of those available to the winner in Abu Dhabi thanks to the double points. The title cannot be won this weekend in Austin. But if results go his way, Hamilton could claim it next weekend in Brazil, scene of his 2008 world championship triumph.

  115. Post update

    Andrew Benson

    Chief F1 writer

    "Formula 1 trialled the new 'virtual safety car' idea after both Friday practice sessions, a way of controlling the speeds of the cars at times when there is a recovery vehicle on the track but officials think it can be cleared quickly enough not to need a safety car. It is aimed at preventing the circumstances that led to the accident that left Jules Bianchi with severe head injuries in Japan. But while the new system, which gives drivers a target lap time to stick to, as generally welcomed, all agreed it needed some work.

    "McLaren driver Jenson Button said: 'There are positives and negatives. When you are wheel-to-wheel you can't just hit the brakes to get the speed down like we are now in practice and you only have a certain amount of time to do it. So in that respect it's very tricky.

    'With the way the safety car boards are now and with the lap we do when there's no safety car, you can dip below the speed and you get away with it because as long as you cross the finish line positive you're OK. But with this system you always have to be positive but you want to be as close to zero as possible because you could lose two seconds to the car in front. If you drop below and the restart happens you get a 10-second penalty so it's very, very tricky.'"

  116. Post update

    Lewis Hamilton

    Lewis Hamilton appeared on America's popular Today Show before this weekend. He got just over a minute and a half of airtime.

    Sarah Lazarovic, on the segment before him, got four minutes. Her claim to fame was that she apparently managed to go 12 whole months without shopping for clothes or shoes.

    Formula 1 has plenty of work to do if it is to make an impression on the American public.

  117. Get involved

    These live texts are always a lot more enjoyable if you, our dear readers, get involved. So where does Austin stand in terms of the great F1 race tracks?

    Do you think Lewis Hamilton will beat Nico Rosberg to the F1 title? Will Formula 1 lose more teams, after Caterham and Marussia went into administration?

    Tweet us using the #bbcf1 hashtag, text 81111 (UK only) or leave a comment on the BBC Sport Facebook page.

  118. Post update

    Two teams who won't be in action this weekend are Caterham and Marussia. The two outfits are in administration and fighting for survival. Caterham's Marcus Ericsson and Kamui Kobayashi are in the paddock, working on saving their own F1 futures, as is Marussia's Alexander Rossi. Incidently, Rossi will be in the BBC Radio 5 live commentary box for Sunday's race.

  119. Post update

    Andrew Benson

    Chief F1 writer

    "If there was a sense after Lewis Hamilton's victory in the Russian Grand Prix, his fourth in succession, that he was beginning to lay one hand on the world championship trophy, Nico Rosberg has indicated here he is still up for a fight. There was nothing to choose between the two Mercedes drivers on Friday, Hamilton fastest by just 0.003secs.

    "'It is looking very close between me and Nico,' Hamilton said, 'so I am expecting a very, very tough battle in terms of us racing particularly, but I am excited, I am ready for it.' Rosberg added: 'Very tight - a bit as usual. Three thousandths but I have them in my pocket. I know where they are. The car is really quick here again. It is a pleasure to drive. So I am looking forward to the rest of the weekend. It looks like it is going to be a battle between my team-mate and me."

  120. Post update

    Today, the high point is qualifying but before we get to that, we've got the small matter of third and final practice. That'll last one hour and provide teams with a final chance to gather long-run data before doing a qualifying-simulation run towards the end of the session. It all kicks off at 15:00 GMT.

  121. Post update

    Circuit of the Americas

    As you can tell from the stars and stripes in this picture, the Formula 1 circus has rocked up in the United States for round 17 of the World Championship.

    The Circuit of the Americas in Austin, Texas - the 10th American venue to host a Formula 1 race - is our host and despite this being only the third running of the event, it has already carved out its status as a favourite.

  122. Post update

    Daniel Ricciardo

    Wander around Austin and you'll see t-shirts and bumper stickers adorning the unofficial slogan of "Keep Austin weird". Daniel Ricciardo is certainly playing his part with this sensational Wolverine-esque facial hair for this weekend. It's remarkable. Just remarkable.