Looks amazing, but I'm slightly disappointed.
Considering that the F10 550i is about 350lbs heaver than the E60 M5, let us assume that the F10 M5 will be 350lbs heaver as well. That means that the E60 had a power to weight ratio of 7.89 lb/hp vs 7.88 lb/hp for the F10. With all that tq, I'm sure the F10 M5 accelerate quicker, but I'm not so sure about above 60mph.
Indianapolis Red BMW ///M5