looks like this could work nicely. i rekon you should spray the fin kinda bits on the back bumper a kinda matt black.
Not sure about the number plate, if your willing to get pulled over a bit I'd say get a smaller front plate at your own risk. I think the black for the fins on the back would cool, also clear headlights and a slightly bad boy'ed bonnet would finish the front off nicely I think...
The back is ok...but that front bumper is god awful. I would personally go for a valver front end instead.
Hardly progress is it posting up photoshops?