Welcome to our LIVE coverage of the season-ending Brazilian Grand Prix from Interlagos, Brazil.

Vettel's gearbox issue is getting slightly worse, with third gear now affected.

Having lost third place Jenson Button stops into the pits for new tyres, suggesting that all the front runners will be on three-stop strategies in this 30 degree weather.

Webber has just taken 0.3 seconds out of Vettel's lead. Michael Schumacher is dead last after that incident, and has been lapped.

Vettel is suffering from a short shift in second gear, meaning he can't use the full rev range. Nothing major but every bit counts...

Vettel is on the pit radio complaining of a gearbox problem, but it doesn't seem to be slowing him down....

Alonso, in third, is now 10 seconds back from Vettel, while second-placed Webber is three seconds behind his team-mate.

Schumacher has a new set of tyres and is back out, while Senna now comes into the pits for tyres - possibly to be checked out because his front wing is not replaced.

Alonso has picked up two seconds on Button already - he's really flying.

ALONSO GOES PAST BUTTON! The Englishman got out of shape in turn four, losing his rhythm and ending up letting the Spaniard through.

Schumacher and Senna's crash being investigated - it's a bit 50/50 though, possibly no penalty.

Senna's Renault lost a few chunks of its front wing, but he seems to be running absolutely fine.

Schumacher has smashed into Senna on the first corner of lap 10! Amazing stuff, and the German has to put with a puncture - he's haemorrhaging places as he limps back to the pits!

Schumi is still all over the back of Bruno Senna - these two look like they'll have a good tussle.

Still blistering sunshine, and the skies seem to be clearing rather than clouding over. Rain still possible but it's nowehere near right now.

Button, Alonso and Hamilton in 3rd, 4th and 5th is the best battle on the track still, the three of them split by less than 1.3 seconds.

Michael Schumacher, uniquely among the field, apparently has a spare set of soft tyres in the pits as he's started on part-worns.

Vettel is now just under seven seconds clear of Button, while Michael Schumacher is now hunting down 9th placed Bruno Senna.

Button locks his brakes and lets Alonso right up behind him, but pulls away in the second half of the lap to reestablish a half-second breathing space.

Alonso has put in a couple of flying laps, and is right up Jenson Button's backside now - while Lewis Hamilton is way back.

As the cars come round again the field is tightly bunched from Button in third down to Nico Rosberg in 7th.

Barrichello has pinched a couple of those lost spots back, and is back up to 17th.