I have a 2008 Black Saphire 4.8 and when looking at the front of the car in direct sunlight I do notice a slight difference in the paint between the door panels and the front fenders. I asked a friend of mine about this who used to do automotive paint work and he claims that the same paint is used, but it looks different because of the way that the metallic base coat adheres to the different surface materials. The door panels on our cars are steel and the fenders are plastic. Its amazing to me that BMW has not picked up on this.

It doesn't bother me too much because it is hardly noticable, but still unacceptable on a $76,000 truck. Im tempted to show it to my dealer but I really don't want to deal with their BS. What do you plan to do about it?