Carbon fiber is an ugly double-colored and very overrated material, even considering it's weight and physical properties. I blame the ignorant public with cash for buying these and making an artificial demand on these overpriced products. My M6 E63 has 10+ Kg carbon fiber inside the front bumper, and some 15+ Kg of glamorous carbon fiber roof.
P.S. I noticed there's no listing for Carbon Fiber spoiler, maybe because it's more expensive than official M Performance part?