Wow the CF trunk lid sure looks horrible on a white car. Super rice-o-rama. Please guys don't do this to your car!
That being said the part itself does look absolutely top notch in terms of quality, shape, finish, etc. Painting such a part to match the body or painting the majority of the part (as in the 335i pics posted) is a very cool solution.
My problem with these parts is simply the ratio of cost to weight savings. What does an E46 M3 CF trunk lid cost (or 335i or whatever is now released)?