The only way to make more power when you have fixed displacement like the F1 cars is either forced induction, which has been outlawed there for years, or spin the motor faster.
The F1 spin faster. The curious thing though, the old group B rally cars were as fast as the F1 cars, but with "only" 600+ hp. I wish I could find the website now.
http://arturmarques.com/old_news/new...ruary_2003.htm
It isn't the same one I read before where on of the current F1 drivers got a ride in a Group B car and it scared the snot out of him.
Anyway, torque range, hp, gearing, etc are engineered to work within the intended use of the motor. I wouldn't put a 10,000rpm Por-Stock motor in my car, but they spin them that fast to make power. WRC cars on the other hand are limited to 300hp but go 0-60 in under 4 seconds (in gravel no less) because they make nearly 600ft/lbs of turbocharged torque.
Would I want an F1 engine for my car on the street, no, but I would take a WRC motor and try to live with the traction problem.