I don't care for either one. I've always liked the GoDaddy car paint schemes (one of the most identifiable and eye-catching cars the track), but I don't like that one at all. The angles on the colors are terrible in my opinion. The red and white one is better than the green/black/orange/red/white, but I don't think anything about it will really stand out.
They actually remind me of some of the generic paint schemes from create-a-car mode in some of the past Nascar games.