To be honest. Your car is beautiful as is. Red is everywhere, so it's not worth it.
IF any color change. I would go with the dark blue paint that all the new M's have. Or go with a really really flaky Black Metallic. IMO it would look pretty cool. Especially if you had black chrome/chrome lettering on it like "BMW Motorsports" or "Stop tech."
Either way. You should do whatever your heart tells you. So far you haven't done anything to your car I wouldn't do. Your car is the benchmark for modded coupes. Do what you do best.
