I like the suggestions of either Orange (a burnt orange in my opinion, nothing too bright) or gunmetal gray. Both would look pretty b.a. on that car.
But personally I like the clean non-flashy look how it is right now. Racing stripes just arent my thing, but at least you have a car that you can put racing stripes on and not be embarrassed, unlike the Neons and Cavaliers I see with them around here LOL!