I have been fortunate enough to be chosen as a finalist to win the 2015 GTS Club Coupe. Should I win I will need to sell my beloved 2006 C4. I'm curious about the value and the best place to market the car. It is in excellent condition. It has never seen a car wash. It has never been tracked. No over revs. Six speed. Spacers. Short throw shifter. The only mods have been a Gundo hack and stainless steel brake lines. Speed yellow with black interior. Bose. 65,000 miles.

Thanks for your input.