if you want flames on your car, go for it. It's your car, don't let anyone tell you how it should look. I do think though, (having a carbon blue celi myself) that red would be a bad choice. If you're going to do it, do yourself a favor, go to a paint shop and research the different colors/effects that are available. The other thing i would recommend is that you expect to pay a lot, and take it to a good airbrush artist who will do a good, artistic job, rather than just cookie-cutter flames. If you were to do, say a pearlescent blue and silver flame over the carbon blue, it could look sexy as hell. I was thinking about doing a pearlescent ghost-storm on the side of my car, with clouds rolling off my front tires, and lightning striking the back wheels... i would do it very in a very subtle way though, so it would only stand out in the right light.