Friend of mine sent me these links, pure proof that if your BMW isn't fast enough already, just turbocharge it and it'll literally rape pretty much anything.
330i vs. Corvette Z06: http://www.activeautowerke.com/turbo/330i turbo vs z06 part 1.mpeg
330i vs. Corvette Z06 Part 2:http://www.activeautowerke.com/turbo/330i turbo vs z06 part 2.mpeg
Turbo M Coupe: http://www.activeautowerke.com/cars/TurboMZ3/AAMcoupe123.mpg
Turbo M Coupe 2:http://www.activeautowerke.com/cars/TurboMZ3/AAMcoupe34.mpg
E36 vs. crotch rocket: http://www.activeautowerke.com/cars/DTMpowerM3/grfx/dadobeatsbike.mpeg
330i vs. Corvette Z06: http://www.activeautowerke.com/turbo/330i turbo vs z06 part 1.mpeg
330i vs. Corvette Z06 Part 2:http://www.activeautowerke.com/turbo/330i turbo vs z06 part 2.mpeg
Turbo M Coupe: http://www.activeautowerke.com/cars/TurboMZ3/AAMcoupe123.mpg
Turbo M Coupe 2:http://www.activeautowerke.com/cars/TurboMZ3/AAMcoupe34.mpg
E36 vs. crotch rocket: http://www.activeautowerke.com/cars/DTMpowerM3/grfx/dadobeatsbike.mpeg