Powered by a 550 horsepower version of BMW's original M70 V12 engine, the M8 was meant to challenge the Ferrari 456 GT. However, following testing of the single prototype, BMW canceled the program ...

The original 8 Series never really got an M model, but production versions with both a V8 and a V12 managed to hit showrooms before BMW canned the lineup. However, an M8 prototype was made ...