I think the point would be that it's lighter. I'd paint it all and enjoy the 80-100 pound weight savings.
1. who needs a light bodykit? i mean its good and all, but if you race, you don't want a body kit and if you don't race, then you could probably care less how much it weighs
2. painting...then you scrape or something and there goes the Carbon Fiber or something...
3. cost is probably a lot..this stuff is only good for show.