aight here it is all is i did my research the bmw is a good car i dont see how yall dont think so but the race bmw does have the 3.2l m3 engine with a hewland tranny that is all it isn't even a bmw tranny soo half of the parts they use come from other companies the only thing im wondering is how do they get the race cars more than a 1000 lbs lighter than the production cars