So, just two more races to go in this season, and once again Vettel is the man grabbing the headlines, although the Hamilton/Massa row may yet take another turn.
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Button comes in second, some 6.7 seconds behind Vettel. Alonso is way back in third as he crosses the line, with Webber a second behind him.
Sebastian Vettel wins the first ever Indian Grand Prix! The world champion led from pole to podium. Yet another masterful performance from the German.
Webber's DRS is not enough to see him overtake Alonso on the final lap and nick a place on the podium.
Vettel is threatening to win this race by more than six seconds from Button. He is currently 5.6 seconds ahead. Think he might win this one!
Having said that, Senna has just pitted while in ninth, and that drops him out of the top 10. Odd strategy from his team there.
Petrov is trying his utmost to catch up with Perez as the pair both make a late surge for a place in the points, but he's not getting close at the moment.
Another fastest lap from Vettel, clocking in at 1:27.7. Another exceptional race from the champion, going from pole to podium once again.
Some fabulous helicopter shots of the New Delhi circuit. This really is a great track. Beat that, New Jersey!
Home driver Karthikeyan pits for the second time while in 16th place. A shame the Indian drivers could get some points in front of his own crowd.
Interesting message on the team radio for Schumacher: "Michael, you are 1.5 seconds ahead of Nico with nine laps to go. You are free to race, but keep it clean!"
Schumacher is having a good race as he pits while in fifth. He rejoins the race in the same position, just ahead of team-mate Rosberg.
Make that 2.7 seconds! Vettel appears to be easing off, but the switch to the harder tyres for Button has really paid off.
Vettel's lead is down to 3.533 seconds right now. The German is not in any danger of being overtaken by button, but it is another decent showing from the 2009 champion.
Bruno Senna is now up into ninth place. Another good race from the Lotus driver.
Hamilton and Button both pit to switch to the harder tyres, as does Nico Rosberg.
Alonso is also benefiting from the switch to the hard tyres, as he is the quickest man through the middle sector.
Hamilton is having some sort of problem with his car. He is currently lapping a second slower than his McLaren team-mate Button, despite having no one immediately in front of him.
Another fastest lap for Vettel, posting a time of 1:28.5. It may not have been the most fascinating title race this season, but the young German is a worthy world champion.
The top four drivers in this race - Vettel, Button, ALonso and Webber - are also the top four int he championship standings.
Massa storms into the drivers' room with his helmet on. A clear sign his is not interested in speaking to the media. Not until he is fully debriefed by his team anyway.
A retraction of the previous statement on Webbers tyres - the Australian posts his fastest time thorugh the middle sector. Good to see Red Bull using this unknown track effectively to experiment.
Webber has a nightmare pit stop, taking far too much time to change on to hard tyres which could well lose him as much as a second per lap!
Fascintaing to see the different reactions to the Hamilton/Massa incident on the reader comments. Have your say by posting your thoughts below.
Vettel sets another fastest lap, and is the first driver today to go under 1:29.
Massa pulls out with his front suspension damaged. The front of his car wa swobbling so much it was unsafe.
Petrov sliding all over the shop, picking up plenty of sand as he veers off the track before managing the save his race. He may need to change wheels if he is to avoid dropping way back in this race.
Hamilton, meanwhile, passes Alguersuari at turn one to move into eighth place.
Massa gets the drive-througfh penalty! The stewards rule that the Ferrari man turned into Hamilton when he should have let him pass! It will be interesting to hear the Brazilian's reaction at the end of the race.
Race leader and world champion sebastian Vettel responds well, setting a new fastest lap of 1:29.510.
Alonso is the fastest man on the track once more, clocking in with a lap time of 1:29.568.
Confirmation has been given that the incident between Hamilton and Massa is under investigation. A drive-through penalty for Hamilton seems the most likely outcome.
Hamilton, predictably, is protesting his innocence on he team radio: "Felipe just turned in on me. Didn't give me any space."
Another retirement as Buemi's Toro Rosso grinds to a halt with smoke bellowing out of the front.
And now Massa misses a turn and goes over the gravel! Again, he remains in the race, but you have to wonder what sort of damage had been done to the Brazilian's car.
HAMILTON BUMPS MASSA!! The McLaren driver nips inside of the Ferrari on the turn and nudges Massa off the track! Both mdrivers are still oin the race, but it's yet another incindent between those two.
Hamilton is now setting his sights on Massa, though he is not being given any opportunity to pass. The former world champion has a picture of Bob Marley on the top of his helmet. Just so you know.
Hamilton makes his presence felt, clocking in with a lap of 1:30.194. The McLaren driver is still a way off getting on the podium though.
Massa sets a new fastest lap. The Brazilian goes around in 1:30.243.
Vettel now takes his turn to dip into the pits. The Red Bull garage crew make a 3.2-second change, and Vettel rejoins the race still in the lead.
Alonso's canny use of DRS sees him zip past Schumacher on the straight.
Hamilton, Webber and Alonso all pit now. This is a crucial time in the race. Webber and Alonso emerge either side of Michael Schumacher.
Adrian Sutil, having just been passed by both Toro Rosso drivers, goes into the pits for a change of tyres.
Maldonado is the third DNF of the race, following Glock and Kobayashi's early exits. Button continues to open the gap on Webber.
Bad news for Williams: Pastor Maldonado has retired. The Venezuelan's engine has failed, and his race ends a damp squib.
Again Button closes the gap behind Vettel. The 2009 world champion is 4.1 seconds behind the current top man now.
Button is the fastest man on the track, setting the fastest lap for the second lap running. He is now 4.5 seconds behind Vettel and, crucially, he is opening the gap between him and Webber in third.
The stewards have looked into the incidents in the first lap, and will not take any further action. That means no points penatly for Kobayashi.
Algesuari moves into the top 10 as he passes Senna! Great driving from the young Spaniard, and he's in the points now.
If Webber manages to get second then Red Bull would be on for a third one-two of the season.
Webber continues to nip at the heels of Button, but the McLaren is not giving the Red Bull an inch as he tries to nick second.
Alonso is now 1.7 seconds behind in fourth with Felipe Massa and Lewis Hamilton following the Ferrari.
Webber has more pace than Button and the McLaren man is defending his second position, forcing the Australian wide at turn 4.
Timo Glock has retired as Vettel flashes over the line with a three second lead over Button.
Button blasted past Webber going into Turn 4 on lap one. Alonso has recovered to fourth after running wide in the first corner. Perez and Glock also went into the pits at the end of the opening lap.
Kobayashi is out but Barrichello is running again after a lengthy pit stop.
Five red lights and we are away! Jenson Button is up to second ahead of Mark Webber and Fernando Alonso. Rubens Barrichello and Kamui Kobayashi collide at the first corner and there is further contact down the field with Jarno Trulli spinning out.
Air temperature climbs to 31 degrees as the formation lap begins. A light north-westerly breeze will act as a tail wind down the long straight to Turn 4, aiding top speed.
There is just five minutes to go until the formation lap begins at the Buddh International Circuit.
McLaren's Lewis Hamilton has said he accepts the risk of dying in a Formula One car as he follows his passion for racing to the limit. "Everyone will have (Wheldon and Simoncelli) in their minds," the 2008 world champion said. "But you have got to do what you do because you love it. It is a sacrifice and a risk that we all take. No one wants to be in those situations but, for me, if I was to pass away, I cannot imagine a better way, personally," said the 26-year-old.
As you would expect the minute's silence was impeccably observed.
A number of F1 drivers have paid tribute to both Wheldon and Simoncelli, who were killed in racing accidents over the past fortnight, over the Indian GP weekend by wearing special stickers and armbands. Jarno Trulli has also been racing with a Simoncelli replica helmet design as a mark of respect for his fellow Italian.
Formula 1 personnel will hold a minute's silence in memory of Dan Wheldon and Marco Simoncelli ahead of the Indian Grand Prix. Following discussions between the drivers, the teams and the FIA, the event will take place at the front of the starting grid at 2.45pm local time - 15 minutes before the start of the race.
The full grid is 1. Sebastian Vettel, 2. Mark Webber, 3. Fernando Alonso, 4. Jenson Button, 5. Lewis Hamilton, 6. Felipe Massa, 7. Nico Rosberg, 8. Adrian Sutil, 9. Sebastien Buemi, 10. Jaime Alguersuari, 11. Michael Schumacher, 12. Paul di Resta, 13. Pastor Maldonado, 14. Bruno Senna, 15. Rubens Barrichello, 16. Vitaly Petrov, 17. Kamui Kobayashi, 18. Heikki Kovalainen, 19. Jarno Trulli, 20. Sergio Perez, 21. Jerome D'Ambrosio, 22. Daniel Ricciardo, 23. Narain Karthikeyan, 24. Timo Glock
However, the stewards have ruled that Daniel Ricciardo's five-place grid penalty for a gearbox change means he will start from 22nd, while Narain Karthikeyan starts 23rd after losing only two slots for his five-place grid penalty. Timo Glock will start last because he failed to set a time within 107 per cent of the quickest time in Q1.
The FIA has confirmed the provisional grid for the Indian Grand Prix with the raft of penalties having left onlookers unsure about the exact order of positions after qualifying. With no less than five drivers having penalties for technical or sporting penalties, it was left to the stewards to work through the rule book to confirm the line-up.
Double world champion Sebastian Vettel starts on pole for the inaugural Indian Grand Prix.