I kind of looks like carbon fiber. OTH, it could be poorly lit patterned aluminum. Or, it could be something that is available in Europe but not here. MBUSA has posted pics of Euro spec cars in the past.wondering said:they show the aluminum textured trim on the BUILD YOUR OWN, but then on the gallery pictures, they show the C320 sports sedan with a black interor trim. check it out to see if i'm crazy.