debagde, tint (dark black, try to stay away from colors ^^), inlays & of course a GPF sticker(reflective concepts has those). paint the calipers...hmmm thats all I can think of.
Pictures of said car?
be a gangster and do pink...j/k... i like the dark blue idea as long as the color surrounding it is light ( white)
search, look through picture threads... youll find more things to do