The Brawns are Much quicker on take off then the RBRs so it could possibley be Rubens in the lead after T1 which Still won't be that Bad for Vettel as he has quite a bit more fuel.
Should be a RBR 1-2 by the sounds of it its down to the drivers to see who gets 1
I think the Brawns are on equal fuel loads because Button got called in early on his last fast lap when the team saw he wouldn't improve the time so he saved one inlap.
It has been said that the Brawn is light on its tyres, and the Red Bull not so much, I think this was evident at Monaco where Button could easily make his supersofts last (relative to others) while Vettel ended up in the wall. I think this can explain why Button is unusually off the pace on such a cool day. Of course there are other factors, such as Red Bull's major upgrade.
Perhaps later today we will see the Brawns yet again being able to preserve their tyres better than Red Bull and the others over longer distances, outpacing them in the race, then again Red Bull's update may help the car to be easier on its tyres, and its not exactly going to be scorchio tomorrow so perhaps tyre overheating and wear will effect Red Bull less than in previous races such as Monaco.
correct me if im wrong but... isnt the air that comes from the exaust somewhat hotter than the ambiant air? therefore its less dense than the ambiant air so it would give them less downforce coming from the wing... right? if so, that must be why the Red Bulls have their exausts so far back....
The volume of air coming from the exhaust would have negligible impact on downforce, due to the fact that at speeds when aero downforce is significant, the exhaust gases will already have passed under the rear wing. Even on the RB5, the exhaust ports are ahead of the rear wing structure, so they aren't that far back. In fact all current F1 cars have their exhausts exiting somewhere between their rear wing and rear tyres.
If you look at the photo, you can see that the exhaust gases are trapped in the low-pressure zone behind the high-pressure air from the rear wing. If the exhaust gases were passing over the rear wing, you might have a problem, but that is certainly not the case in the photo.
More important is the management of hot radiator air. The way it flows over the rear structure, wheels, and tyres, is pretty important, since radiator air is dispersed over a wider portion of the car body than exhaust gases, and greatly affects the temperature of the rear tyres, brakes, and efficiency of the rear diffuser.
If Button doesn't win, which is likely, then I'm hoping Trulli or Vettel will. I'm not too fussed about Barrichello, I don't like Webber and Nakajima just...won't. Tyres could be interesting like 5haz said, mabye with luck Button can win again.
Cold - Please don't stay dry and cold, Brawns won't do very well, Red Bulls will win easily, probably making for a boring race. I don't mind people beating Button if it's interesting (and he still wins the title :razz. Okay the Red Bulls might fight but I don't like Webber, it's not like Button and Vettel fighting, as I like them both (even if I prefer Button).
Funny to think a British team would be thwarted by classic British weather.
I'd love to see a good fight, but the Red Bull and the Brawn only work in different condition, so well probrably never see on the same pace on the same part of the track together.