i feel ya poodles. i know the F1 cars have quite a bit of sidewall too. i know youre right, you need sidewall to actually have a car that can stick in the corners. more sidewall tends to make a more predictable break-away at the limits of adhesion; being more forgiving at the limit. whereas, lower profile tires are inversly proportionate to that concept. most of the road race cars that i can recall have moderate sidewall, abou 3-4 inches of sidewall. ranging from GT1/GT2/GT3 cars, LMP1/2, F1, even the SCCA pro cars have moderate sidewalls. no real race cars that i can think of have ultra low profile tires like a 305/25/19 would. hell, my 255/35/18 has too low of a profile for my liking. the ride is harsh but i have yet to make it break away... at least its on the front and would turn into understeer.