Hello, I'm not sure what shade to paint it, but there's a reason for the blue paint.. I bought the set of DeLorean Models (BTTF 1, 2, 3) and I decided to paint the Part 1 one as an experiment to make it black.. At first I tried grey, but since the seats etc are already grey by default that would be a little stupid. -=] When I painted it black and assembled it, I couldn't see a thing cause the underside of the roof is reflective, and the inside was pitch black.. well, almost. If you've seen pictures of the professionally painted models, you'll see how nice the blue paint looks.. This is my own opinion, and I used glossy black, I think maybe if you use flat black/grey you might get a different view. Good luck! Supratik Lahiri http://members.aol.com/Zamere/index2.htm