Originally Posted by FruitCake
stock for stock, M3 wins. On the track, it could be very close.
with the chip the S4 is going to win on and off the track.
Stock to stock the M3 will win comfortably on the track but it would be closer on the road. Chipped the S4 might get closer on the track but I doubt it would be quicker, on the road it will probably be quicker but either way it will be a close call.