I saw an M6 with the real carbon fiber trim interior last weekend and it looked fantastic in person. It has much more flare and style to it in person than it conveys in photographs.
I would very much like to see the carbon fiber pattern leather in person before considering this option on the M3. The pictures shown thus full present a matte finish, as the OP noticed, that is quite dull and lifeless.
If real CF trim is a state-side option, I am seriously considering ordering it after seeing that trim in person in the M6.
Now:'05 G35 6MT\Laser Red\Beige\Sport\Premium
06/2008: M3, 335+Dinan, or ...