I was going to do this 3 Series BMW Continental Tire ST with the M3 E92 Template but after messing around for 2 hours and then getting mad at the carbon roof I decided to do it as a 1M. Also the M3 was smaller than the 1M in the game and worse AI so the whole thing didn't really work.
So enjoy and there will be more Bimmerworld cars to follow.
BMW 1M IMSA ST Bimmerworld 80 2014-08-11
BMW 3-Series (1M Template) Continental Tire ST Bimmerworld Skin