Second practice is under way, as the sun sets in Abu Dhabi.

Tom Clarkson
BBC F1 pit-lane reporter in Abu Dhabi

"Williams had problems with their body work coming off in the first session. The problem was that they had cut cooling holes in body work but when the air got inside it, it basically blew the body work off. They have gone back to a more conservative design."

Williams F1:, external "We ran a slightly different cooling configuration earlier which caused bodywork fastener problem in #FP1 on both cars. The damage is fixed & we have a more conservative configuration for #FP2."

Williams had a miserable first practice, with bodywork coming loose on Felipe Massa's car and actually falling off Valtteri Bottas' car. Good news, though. The team think they've sorted the problem.

Image source, Jenson Button on Twitter

Jenson Button:, external My drivers room at the circuit is pretty special this weekend, thanks @mikeycollier and @bbcf1 Very special memories.

You can see a special feature with Jenson Button in our race preview show on BBC One on Sunday.

Image source, Getty Images

It's not going so well for Jenson Button on what could be his final race in Formula 1. The 2009 world champion, who has yet to find out whether he has a seat at McLaren next year, did just eight laps this morning and faces the prospect of entering tomorrow's qualifying with just one hour of Saturday morning practice to get sorted.

Tom Clarkson
BBC F1 pit-lane reporter in Abu Dhabi

"Bad news for Jenson Button. While McLaren were putting his car back together after his suspension problem in first practice, they discovered a hydraulic problem and it will be touch and go whether he gets out in this season."

So this weekend is, of course, the title decider. Only two men can win the world title - Lewis Hamilton or Nico Rosberg. Hamilton is the frontrunner, courtesy of his 17 point lead - but 50 are still available so it's still all to play for.

Image source, Getty Images

Nico Rosberg's path to Formula 1 has been intriguing, too. The unicycle rider, who turned down a place on London's Imperial College's aeronautical engineering course to pursue his dream, can speak five languages, ride a unicycle and loves a bit of karaoke. Read more here.

Image source, Getty Images

From racing remote control cars on Blue Peter to flying round the world on his private jet, Lewis Hamilton has had quite a journey to Formula 1. Read about it here.

Image source, PA

Lewis Hamilton was in fine form this morning, gaining the upper hand over Mercedes team-mate Nico Rosberg as he set a blistering pace in the Abu Dhabu desert.

The Briton was just over a tenth quicker than his childhood friend with their nearest challenger Fernando Alonso 1.7 seconds off the pace in third.

BBC Radio 5 live

Found yourself with some time to kill this lunchtime? Well I've got the solution. Check out the BBC Radio 5 live F1 preview podcast with Jennie Gow, Allan McNish, James Allen and Eddie Jordan previewing this weekend's duel in the desert. Listen here.

Afternoon and welcome to our live coverage of second practice for the Abu Dhabi Grand Prix.

Championship contender Nico Rosberg is round behind the garages practising his keepy-uppies, as he always does before a session with 27 minutes still to go until we're under way.

Ready for round two, folks?

Image source, AP

Lewis Hamilton has plenty to smile about after pipping team-mate and title rival Nico Rosberg to top spot in first practice. The Briton has owned second practice this year, topping the times in 14 of the 18 sessions so far. Will that form continue later today? Join me in a bit to find out.

So that's it for from me for now, but the day is far from over. Second practice kicks off at 13:00 GMT, with this live text resuming at 12:30.

Image source, AFP

Williams had a miserable session with bodywork issues plaguing both cars. Felipe Massa managed just seven laps and was 13th, with Valtteri Bottas eighth after eight laps. However, with two long straights at Yas Marina, I expect the Williams to be right up there once they get to the bottom of those issues.

Mrs Newman:, external Exciting race weekend F1 good to see Hamilton in P1 after FP1 here's hoping Lewis can be top the whole weekend.

Phil Slocombe:, external Lewis has set out his stall early.

Mercedes have been a class above for most of this season, but rarely has the gap been as big as it was in that session. Lewis Hamilton's time of 1:43.476 is 1.7 seconds quicker than anyone who is not in a Mercedes.

So Lewis Hamilton strikes the first blow at the title decider in Abu Dhabi. That's the 12th time in 19 races that Mercedes have finished one-two in first practice.