What Color Goes Good With a Maroon Car?

I think it depends on the impact or impression you're trying to make because I remember, back in the late 1970's, seeing one of those bigger and more elegant looking Thunderbirds, maybe of a few years of age by then, that was maroon and ivory, and it looked very elegant, in an understated way, which makes the impact all that much more powerful. But, after reading further on your question, I see you want to put lettering of some kind on it, and maybe you're looking for an impact or impression other than elegance, so, I'm kind of lost on how to help you there. God Bless you.