25 long years have elapsed since the first E28 M5 rolled off the assembly line. I often wondered how it might be today if the design engineers had embarked on 4 wheel drive technology for the M series back then. Take a look on youtube and type in: Ken Block Gymkhana Training. No it aint a BMW, but just imagine what BMW could do with their M series cars if they had embraced some of Harry Fergusons patents. Remember the Jensen Interceptor? I dream on.