Formula One ( F1 )

Tragically, I believe the simplest reason for Vettel's continued dominance over Webber in terms of speed, comes down to something as simple as weight. The cars weigh the same, and the power output is the same. But for all the horsepower available, its straight physics (well, biology and physics) that since Webber is taller than Vettel, if of the same approximate fitness levels and fat percentages, he will weigh more. He does therefore weighs more, and that, to me is what makes Vettel look good against him. I think Webber works harder than anyone to keep his weight down to the barest minimum, but he can't shrink bone, and will always be heavier.

Poor guy, he always looks gaunt, with his cheeks deeply sunken in, whereas the other drivers look normal. They haven't got the weight disadvantage to battle that he does.

Shorter, lighter drivers favoured by use of KERS.

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Car + driver weights are all the same though. It does mean that Vettel get a bit more ballast to play with.