I raced an M3 before. Yellow m3 coupe...he was just DYING to race me. So we did, about 65-70 mph roll and I beat him til 120, put about 3 cars. Yes...at 4th gear, he was catching up from 4 car or so length. That time I had intake, cat back exhaust and I was boosting 16.5 psi. He had someone next to him and I did not. It was fun.