Ive just bought a new bmw and my last few cars have been m3s, ive got to admit though that 2.5l audi turbo engine is a beast there is not much out there that will touch one of these at stage 2, and thats including supercars ! where as even mega tuned twin turbo 3.0l bmw engines (like the new M1 M3 engines) seem to be struggling to meet these figures, the vag engines at the moment are pretty special, although IMO RWD doubles the fun !