Your probably right though, 'ole Shelby probably doesn't know a damn thing about cars.
A real car IMHO doesn't just go fast around a track or on a straghtaway. Give me some Porche's, BMW's, astin martins, ferrari's and the like on a course like watkins glen. They'll beat anything Shelby designed every time.
When I drive on the road I find that I never drive in large ovals or never ending straight aways. The real challenge is ess turns, shifting, toe to heal, stopping and accelerating.