On the topic of the carbon fiber door panels, I do agree in a sense. I don't like to use carbon where it's not needed either. For those of you who love a car oozing with functional parts, I know you'll appreciate the trunk we're installing:
This one off piece is a direct copy of the OEM trunk made by Challenge, except in carbon kevlar and about 1/3 of the weight of the factory piece.
With that being said, the prime purpose of a sports car (and an M car especially) is to please the driver, at least in my eyes. If installing a certain part pleases the driver, then that part is serving it's purpose.
In any case, I think the carbon door panels will make quite a bit more sense when you see the rest of the interior, and some of the more functional interior pieces that will be installed on the car.
More photos-
