For a car of that caliber I'd say use a very impressive deep color like a dark cherry color give it that Stark Industries creation look just remember to wear the suit.
On a side note I'm kinda into white on an exotic looking car, but that seems to be starting to be a little played out:
Heres a color thread --->
http://www.ffcars.com/forums/42-fact...oshop-fun.html