insurance rates are sometimes cheaper for red cars. they're worse for black/dark coloured cars. Besides that, specific colours are marked on the ins. plan --> thats how they tell the diff when you call to mod your plan and you have, you know, 4 friggin civics in the family, like we do.
they'll soon be doing credit checks on you, as studies indicate people with money are less likely to make insurance claims. (theres a reason they have money, they let their cars look like ****)