Check my sig for what I'm doing with mine. I haven't had a black car for almost 10 years and when I did it was 10 years old so keeping up the paint wasn't priority #1. The maintainence for owning a black car scares my but a few things come to mind:
1) There are TONS of black cars running around that look HAWT!!
2) I probably won't mind the maintainence; I loved my black '89 Z/24 Cavi and used to wash it for fun and I know I'll love my 5th gen waaaaay more
3) Everytime I see a black car w/ black wheels it just grabs me. I don't see one very often but when I do they certainly make an impresion. There's a guy around the corner from me with a Charger that looks just like this one:
and i just drool on sight!
Sooo... that's my case for black, but yellow will definitely be hot too. The only thing that woulld keep me away from it is the fact that the bumblebee color scheme will most likely be done to death.