Might be the best looking GC I've seen to date.
As for the discussion of which looks best, I'll join in.
I'm a coupe man at heart. Love big coupes, especially sweetly modded. But the 650 is so big. Too big. It isn't very sleek. The headlights are too bulbous. The rear is too tapered. So although it looks very nice, it isn't very coupe-like for a coupe.
I am usually not a fan of the 4-door coupre genre. Thinks it's kinda silly. In this case, the extra doors fit the 6 series girth better. Way better. Although I wouldn't buy one, I think the GC looks better. The design flows better all the way around.
I would buy a coupe though....and suffer its shortcomings happily.