In the "
If you bought a GP what you modify?" thread; there are a few comments regarding a Black GP, In the following article there are two pictures of a black GP.
http://mph-online.com/web/spyphotos/0032
You have to scroll down the page and the last two pictures at the bottom are GP's in testing.
I agree with the comments in the above thread saying that a black GP would be better. One of my main niggles on the production GP is the way the black trim on the arches and bumpers looks like a bit of an after-thought; whereas on the black Gp it looks a lot more coherant.