Hope you enjoyed that. Not a great day for McLaren, but no shortage of incident elsewhere. If you want to talk F1 outside of 'office hours', then you can follow me @Mark_Eurosport on Twitter.
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Big win for Webber - the 2010 winner here - and his second race victory of the season. He closes the gap to Alonso in the championship battle.
Grosjean's 'what might have been?' race ends in sixth, then it's Schumacher, Hamilton, Senna and Button in the top 10.
Alonso second, Vettel third, then Massa and Raikkonen
MARK WEBBER WINS THE BRITISH GRAND PRIX!
It's now all about Webber, who eases through the last corners on the way to victory...
And Hulkenberg loses his place trying to get back to Senna - that allows Button through for a point!
Still Hulkenberg, Senna and Button wrangle for ninth - but Senna gets him on the outside!
Raikkonen makes life easier for Massa with a slight slip-up. Runs wide, loses some precious time.
Massa urged on by his engineers to attack Vettel, but the gap is three seconds. He should be more concerned about Raikkonen behind him...
The strategy today was to start on softs, get rid of them and stay on hard tyres for the rest of the race. Those who didn't (Alonso and Hamilton) have paid the price.
Three laps remaining and the fastest man on track is Kimi Raikkonen with a 1:34.728.
They've been talking about contract negotiations with Webber at Red Bull next season - this would give those a nice nudge along...
Alonso now has 4.3 seconds of a gap to Vettel in third. That might just be enough.
HE'S GOT HIM! WEBBER SWEEPS ROUND ALONSO AT THE LOOP and this race is now his.
Sure enough, Schumacher breezes past Hamilton. Hamilton will not be happy.
Not much time left in this race, but time enough. Webber stalking Alonso, not taking any risks.
Hamilton struggling in 7th, meanwhile - Schumacher is within a second of him. At least there is a nine-second gap to Hulkenberg in 9th.
The gap now within half a second. The weather is set fair, it's over to you, Mark.
Webber knows this race is there for the taking now - a big swing in the race, and in the championship as well.
Christian Horner looking on very happily as Webber closes on Alonso. The Ferrari has no breathing room here..
Button very nearly gets ahead of Senna - but the Brazilian fights him off! Remarkably, the cars don't touch.
1.3s the difference - remember, he needs to be within a second of Alonso to activate DRS...
There's a story brewing here - Webber clearly the faster man here. Can he get past the Spaniard?
THE LEAD COMING DOWN NOW! Just 1.8s between Alonso and Webber.
Hulkenberg, Senna, Button all in a train looking for ninth position. No attacking move seen yet, however.
Webber shaving down Alonso's lead - just 3.3 seconds now, and coming down slowly but surely.
Senna lining up Hulkenberg to move into P9, but Button is not far behind him either and could pounce.
Rain apparently in the air not far from the track, but should hold off until the end of the race.
Alonso's gap is 3.5 seconds, and Webber pulled out four-tenths of a second on the previous lap.
A rejigged top 10: Alonso, Webber, Vettel, Massa, Raikkonen, Grosjean, Hamilton, Schumacher, Hulknberg, Senna. Button hovering just outside the top 10 in 11th, and going quicker now.
The bad news for Lotus, however, is that they have a car which could have won the race and once again, they won't be winning it. As McLaren are proving at the moment, you have to take your chances when you have them. Their car off the boil at the moment.
Romain Grosjean would have been a contender for victory had he not been scuppered early on by a racing incident. He's now sixth, and making superb progress.
It looks like the mechanics have not been injured too seriously in that Kobayashi incident. He lost time being dragged back into position, but changed tyres and is back out.
Red Bull advise Webber that Alonso is looking quick now - they'll have to hope for a late drop-off.
OUCH! Kobayashi stops, but misses his mark by some way and has clattered into a couple of Sauber mechanics. That looked nasty.
Alonso's lead about four seconds as it stands. He's barely been challenged all day - will that change now?
In comes Alonso! He should have enough to emerge in fron - he'll have to make them last 14 laps, however....
Another sixth-tenths of a second taken out of Alonso's lead by Webber. Pressure building. Alonso has to finish on the soft tyre, and that hasn't held up as well. Mind you, Webber's tyres could also be pretty tired (excuse the pun) in the final stages.
Massa pits and comes back out in fourth. The fastest man on track at present is Webber - a 1:36.132. But he's got a long way to go to catch Alonso and bridge the gap.
GROSJEAN PASSES HAMILTON! Easy move from the Frenchman, and it goes from bad to worse as Raikkonen gets in front as well.
The latest man to pit is Raikkonen, and Schumacher follows. Looks like Hamilton got ahead of Schumacher - where did Kimi re-emerge?
Kobayashi, meanwhile, is all over the back of Schumacher in the battle for sixth. The German doing his best to hold him off. But Hulkenberg in eighth, who's only stopped once, is waiting and poised shoudl there be an issue.
Vettel must have hit traffic at just the wrong moment - he looked to be making good progress.
The question is what will happen to the rest of the drivers ahead of the pair - here comes Webber - and he looks to cover Vettel's earlierstop - and comes out ahead.
'He's much faster than me,' says Hamilton of Grosjean. He's probably right. Grosjean flying.
Button now into the pits, dropping back down to 14th.
Grosjean follows Hamilton through at Copse - smooth for the Frenchman. Interesting battle brewing...
Should Button let his team-mate through? He does on the home straight!
Gorsjean flying - and making life tricky for Hamilton, who himself is now on his team-mate's rear wing.
Hamilton passes Rosberg - Grosjean follows him at Maggots - those are two brave moves!
Four cars file past Karthikeyan, who seems to grind almost to a stop to let them by. The life of a back-marker.
'Grosjean was the car we needed to cover', Hamilton is told. 'You do not want to be stopping again'.
Hamilton comes out behind Rosberg in 12th. It's an interesting call - is it his last stop? It's a lengthy run if so.
Hamilton in the pits again! That's a very short stint on the soft tyres - back to the primes.
Alonso sweeps past Pedro de la Rosa to lap his compatriot. Curiously, de la Rosa has yet to make a stop.
Grosjean makes the stop, re-emerging in 13th. That pushes Button up to 11th, tantalisingly close to the points positions.
Perez, meanwhile, is fuming on the television. 'Maldonado ruined my race in Monaco as well,' he insists.
Alonso looking very comfortable on the hard tyres - he's set a 1:37.042, which is the fastest lap of the race to date.
Alonso has a 4.8s lead over Webber, Vettel sat third about four seconds further back. Massa, Raikkonen and Hamilton not far behind.
Maldonado is still in this race - he's running 19th. The Perez clash is being investigated by stewards - no decision taken yet.
Raikkonen had just passed the German too, who appears to have lost some pace at the moment.
Hamilton passes Schumacher for sixth place! The Silverstone crowd, who braved the elements to be here, are getting a show now.
Most drivers, then, aiming for a three-stop strategy. Could Hamilton go for a two-stopper? The soft tyres will struggle to stay fresh long enough.
Grosjean is back up to eighth, though he has not stopped since that early incident.
The men in front of Hamilton have tyres which are the best part of 10 laps old. It should be advantage McLaren here.
Not quite, then, not quite. Nothing wrong with the stop - he was in and out in 2.8 seconds. He's on soft tyres, and in prime position to take on Raikkonen for sixth.
The stop was clean and smooth... and Hamilton comes out in seventh.
This is his moment - in comes Hamilton!
Hamilton lapping a second slower than the likes of Massa, and it will be a delicate balancing act when he makes his stop. He needs to stay out and get the most of these tyres.
The key thing for Hamilton will be where he comes out when he pits. If he can re-emerge in third place he'll be really pleased.
Top 10: Alonso, Hamilton, Webber, Vettel, Massa, Schumacher, Raikkonen, Grosjean, Kobayashi, Hulkenberg
Button meanwhile overtakes Rosberg and is up to 12th. Points finish still eminently possible for the McLaren man.
THROUGH! Alonso gets past the Brit, then loses the place, then wins it back! Thrilling racing, but Hamilton fighting a losing battle to hold off the Spaniard at the moment.
Alonso, meanwhile, is right on the back of Hamilton. But they're fighting two different races.
'Don't worry about Alonso,' Hamilton told, 'You've got the gap to the cars we need to get ahead of. Great work.'
'Not Maldonado again, why does he drive like that?' - what Perez said after that collision with Maldonado. Oh dear.
Button pits - and in an interesting move which leaves him 13th, he's bucked the trend and taken soft tyres...
Massa sweeps past Button now as well, taking seventh. Looks like the tyres are gone for Button.
Vettel gets ahead of Button for sixth place - Button tries to come back at him but doesn't quite have what it takes after losing out at Stowe. Neither McLaren has stopped yet.
Alonso pits from the lead - that means that for now Lewis Hamilton leads the Grand Prix.
Webber comes in for a stop and returns to the track in fourth. And it's good news for Red Bull all round becuase it looks as if Vettel actually leapfrogged Massa.
Hamilton now running third after all those stops - how long can he carry on on the hard tyres?
Now it's Massa's turn, with the hard tyres chosen. He comes outs in front of Schumacher - job done.
Schumacher has pitted meanwhile - and he's come out BEHIND Vettel.
Perez tried to go around the outside of Maldonado, who lost his shape and went straight into the side of the Sauber. Oh dear. DRS disabled for now for the rest of the cars on track.
INCIDENT! Perez hits Maldonado! An all-Americas clash and neither come off well.
Maldonado and Perez amongst the men who pit - both comfortably behind Vettel in the reshuffle.
MASSA GETS PAST SCHUMACHER! It had been coming, but now that Vettel has stopped it was absolutely crucial.
Hard compound tyres for Vettel - and they've popped in back out in 15th place with a bit of clear air in front of him. We'll wait and see, but that looks like the archetypal bit of Red Bull quick-thinking.
Red Bull shape for a pit stop - it's Vettel coming in!
Webber gets a bit of encouragement from the engineers, who tell him that Schumacher is doing a good job of holding up his rivals. Alonso getting away, however. Three seconds and counting.
Perez has a little dart at the inside line as Hamilton continues - his pace might be good but the Mexican is matching him.
Interesting - Vettel clipped the back of Massa on the previous lap and lost a small piece of his front wing. It doesn't look to have slowed him down so far.
Hamilton told by his engineers that his pace is actually good compared to those around him. And he should be able to run for longer on this stint, too - he could gain places in the pit stop shuffle.
A queue beginning to form behind Schuacher, however. If there's one man who won't mind defending a place, it's the German.
'Turns 7 and 13' for KERS, Massa told. He looks like he has a quicker car than Schumacher, but can't get through yet.
Alonso has just under two seconds of a gap to Webber in second, while Schumacher is still scrapping with Massa for third a couple of seconds further back.
Button down in 13th after the bright start - and struggling to make further headway. Long way to go, mind.
'I have no pace,' says Hamilton, 'I'm struggling to keep up with these guys' - but that might be a reflection on his tyre choice rather than the car.
Brit-watch - Hamilton mired down in eighth, just where he started. Perez has him in his sights, but Maldonado is not far up the road either.
Grosjean right at the back of the field after that stop - but he's running faster than anyone on the track by more than half a second.
Webber is a poor starter normally, but the replays show he got away better than Alonso initially - the Spaniard sliced across him, and Webber went the other way to protect his front wing. Thrilling moments.
Di Resta back into the pits and it looks like his car problems are terminal. Race over for the Brit in front of his home crowd before it really began.
That brings Vettel into play, who takes on Massa for fourth. Could be some fascinating battles ahead as the DRS is enabled.
Massa swarming over the back of Schumacher in the battle for third, but the veteran cuts him off at Copse.
Yes, new front wing for Grosjean, who's found himself in the wars in the early stages of races this year.
Kobayashi flying at the moment - he's just scythed past Grosjean - or is it an issue with the car? Grosjean is ducking into the pits.
So much going on - Button now loses a couple of places jostling with Grosjean and finding Kobayashi pouncing behind him.
Thrilling first lap - Alonso moving in front, though - 0.6 seconds ahead of Webber.
Massa got himself up to fourth, Vettel is now fifth. Senna has gained five places to take ninth!
A furious start - Button already up to 12th from 16th down the grid.
Lively start - it looks like Di Resta was involved in a shunt and has a puncture!
GO GO GO! Alonso holds off Webber - they almost collide, but the Ferrari clear!
We're lining up - the start of the race just moments away... Can Alonso get the start he needs to control the race?
'Predicting a dry race throughout now', Vettel told. We'll see.
The drivers set off for the formation lap. From what I can see, it's Alonso and Hamilton on the hard tyres in the top 10 - the rest all on softs. But behind them, most drivers favouring hard compound tyres.
Hard compound tyres for Hamilton - but it seems to be a real mix - Webber and Vettel amongst the drivers on the options.
There's so much to play for and we don't know how these cars will fare in the dry conditions after wet practices and qualifying. What do you think will happen? Tweet your predictions and comments to me @Mark_Eurosport
Bad news for Vitaly Petrov - his Caterham has had a suspected engine failure, and he's not going to be able to line up on the grid today. That reduces us to 23 racers at Silverstone.
Good news from Marussia on Maria de Villota: They confirm that today the test driver is awake and talking to her family in hospital. A devastating accident which rocked the sport, but good to know she is recovering.
One of three men could end up on top in the championship race by the end of the day, and two of them are on the front row.
Your pole-sitter for this race is the championship leader Fernando Alonso. With Felipe up to fifth, Ferrari look pretty sharp.
WEATHER: It's DRY! (For now). Take nothing for granted, though - there's a 50% chance of rain according to the forecasts, and plenty of time for it all to change.
Good afternoon everyone and welcome to live text coverage of the British Grand Prix at Silverstone.