I think a white C4S looks great with the red stripe across the back and with red calipers at the wheels. Porsche web site showing new Boxster in White with Black interior. Looks great in photos. My first choice would be be black interior, silver seat belts, aluminum look gear shift and brake lever for extra splash against the black.

I must say Cocoa pics from Journeyman also looks very good. You can not go wrong with either choice. Good luck