[MRR]

This could have been the most powerful production BMW, the M8 that was never produced. According to e31.net it was the original car with the S70 (the engine that would later power the McLaren F1. The prototype was 550 bhp and if it was produced would have been the most powerful factory BMW ever (shame it was never produced ).



http://www.e31.net/navmodelle_e.html