i ran a Z4... may have been the M-Class.... it had Dinan all over it. I noticed at the light he had what looked like a boost gauge.... so i was like... oh shit lol We were side by side till about 70 then he started pulling pretty hard on me. We both let off and pulled over. We talked.... He had ALOT of Dinan parts on board. I dont know much about the BMWs. It was supercharged. Anyways he was a nice guy and accually wants to help me get a car club going. Im gonna give him a call this weekend and see if i can get some photos. It was a really nice ride