QUOTE (The Ragged Edge @ Oct 6 2009, 14:05)

Mclaren will need a jump of around 35% better aero, over this years car, to stand a chane for 2010. The leading teams,(Red Bull, Brawn, Toyota and Williams) will develop and add on at least 10-15% more aero for 2010 and this is basically the same gap Ferrari and Mclaren are already behind.
Sector 1 in Suzuka and Sector 2 at Spa, Mclaren was losing nearly 1 second alone, because their aero is so poor. A new extreme double/triple decker difuser, with a car designed around it, is estimated to claw back around 10-15% max. But that will still leave them to find 15-25% in bodywork aero, on top of that. Considering how bad Ferrari and Macca were aero wise. It can be done, but it wont be easy.
We've discussed this alot, and what you're saying is wrong. Mclaren and Ferrari purposefully ran less downforce so they can be quicker than RBR in S3. They knew that they will suffer in S1 in suzuka but for them the advantage of less drag in S3 made it worth it. If McLaren ran the same amount of wing as RBR they would've been much closer to RBR in S1 but they would've been most likely much slower in S3.
And where are you getting these numbers from anyway? 35% better aero, 15-25% in bodywork aero, etc.?