Overall I think it looks nice. Front bumper and rear diffuser looks nice. I definitely like the newer style taillights and overall rear end compared to the previous E60 M5.
Too bad there’s no flare in the rear to complement the front fender flares.
I like the 6 pot calipers in front but what happened to the rear?? At least compliment the rear with a 4 pot or even a 2 pot would be nice. Functionally it probably won't make much of a difference but instead it will flow better aesthetically. LOL.
Now we need pics of the interior (to see what might be different from the non-M) and the engine bay.