I've decided to skin the spoiler and parts of the bumper (rear diffuser and under the grille on the front bumper) in carbon fibre (real) and match the interior. I'm just worried that it would be over the top: with CF handbrake, gearknob, parts of the centre console, pillar trim and dial housing.
I feel a massive photoshop session coming on!
I do like this decal:
http://photos02.otomoto.pl/photos/or...10018285_1.jpg
From the Micra R, but not sure how it would match up with my car being a darker grey