I think it would have been lots better if the M3 fenders (with gills) had been used. The slight flare and the slots would have given it some "pumped up" look.
Odd he has done that and used 330ci ZHP parts for the exterior. M3 was never face lifted so the, wheels, wings, bonnet, lights and bumper are all wrong. And why has he grafted on a Toyota (?) rear end? That's cheating. This M5 one uses the original body....