If you think the Fisker Karma isn't quite flashy enough, there is always the aftermarket. And, if you don't want to go the whole chrome routine à la Justin Bieber, you could look into the SR Auto Group's White Knight, which is a modified Karma inside and out. Mostly outside.
Sr Auto Group
Canada's SR Auto Group likes to take a car, any car, and make it wilder. The Audi S4 they did looks intriguingly evil. The wheels they've created for the Lamborghini Reventon are amazing.