It has that M4 look where it doesn't necessarily look wide from the straight on rear view, but it does from the front 3/4 view. The interior looks kind of depressing, but I suppose you don't buy the cheapest baby M for the luxury interior. I don't care about the mirrors, but I wonder how the same people who defended BMW reusing the M3/4 wheels because it's cheaper will defend BMW not doing it for the mirrors. The seats look underwhelming too (sorry)
The proportions look very good though.