What are these things about? I saw one of each today on the way home, how fast are they? They didn't say M5 or M3 but just like I said in the title on the right rear of the car.
Thanks
I dont think their's a substantial amount of difference between a standard M5 and M3 vs Dinan. As far as I know, they have a reprogramed ECU, tire and wheel upgrade, and intake/exhaust.