When I bought my C6 I asked a friend at the DPS what color would be less likely to attract attention. He claimed color doesn't matter but if you had to pick one go with silver. He thought it's slightly less distinctive from a distance so on the interstate it might by you a second or two. Once you get close color really doesn't matter apparent speed determines his target. I really wanted a black one but went with silver anyway. Frankly I've had great luck with this car and tickets but I still can't shake that feelilng "black would have been better"
So I found a pic of this sweet black z06 on the internet and quizzed him how stealthy this would be. He replied. "thats about the most attention getting car I've ever seen. stick with silver"