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

Webber comes through at the start of lap 30! Vettel moves over for his team-mate so as to ensure that he doesn't hold up and possibly jeopardise a win for Red Bull.

Webber has closed right up on Vettel, and is withing half a second.

Pastor Maldonado has spun out at turn eight! There's a yellow flag as they'll need to get that car out of harm's way.

Vettel is now told to short shift - i.e. change up before he normally would - on every corner now as the gearbox comes closer to imploding. Webber must surely come through sooner or later.

More trouble for Bruno Senna, who misses a gear and lets Maldonado through after losing a chunk of his front wing presumably loosened in that early ding.

Vettel has backed off and immediately loses half a second to Webber, who will be snffing a morale-boosting win by now.

The pits come on the radio to Vettel: "You have a serious gearbox problem," they tell him, warning not to go into the red in second or third gear.

Alonso is slipping back off the pace a little, four seconds behind Webber.

Vettel definitely handling the gearbox issue better, and he's keeping the advantage well at about 2.7 seconds.

MASSIVE BLUNDER FROM GLOCK! He pulls away from the pits before his rear left wheel is put back on, and the tyre ends up bouncing all over the pit lane. Glock, wheel-less, is forced to pull off and out of the race.

Vettel's gearbox issue seems to be coming and going - he's just extended his lead back to 2.9 seconds.

Vettel's lead after the pit stops has been slashed to 2.6 sceonds over Webber and just under five over Alonso.

Massa comes out behind Hamilton, and is in sixth place.

Massa is now coming in to change his tyres - they were really going off at the end, he had no ammo to defend against Vettel with.

Vettel goes past Massa right at the start of lap 21, and he's free to open it up again and get that lead back up.

Massa is still staying out, but he now has Vettel hot on his haunches.

Webber has pitted leaving Felipe Massa in the lead - just - from Vettel, though the Brazilian has to stop. Or does he? Is he gambling on a two-stop strategy?

Bruno Senna has been given a drive-through penalty for that clash with Schumacher: he might argue that the German turned in, but it was Senna who overran his braking point to put himself in harm's way.

Sebastian Vettel comes in for new tyres and Mark Webber is now the leader - though the Aussie has yet to pit.

Lewis Hamilton and Fernando Alonso have both stopped in the pits and come back out in 4th and 6th respectively.

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