Gulf colors make any car look great, like Rothmans and Marlboro. I've also liked the Red Bull Porsches.
There's so many others.
The Acura is nice but more so when seen from the front or from above. Good mix of green and black -
http://www.racingsportscars.com/phot...03-21-009a.jpg
The new black Corvette looks quite nice as well IMO.
http://www.racingsportscars.com/phot...-03-21-004.jpg
http://www.racingsportscars.com/phot...03-21-004a.jpg