Originally Posted by MrBMW

At a guess rudi i would have to say there is sime UV resistant level to it. Either for them to protect the interior as is or there could even be an ADR rule that says you have to have at x%. I'm just speculating though.

I have always liked something a bit darker myself. Then atleast with my Yellow car. After seeing what KillerBee has done with his, it just gives it a slightly meaner/sporting look IMHO.