Well my race car is the 98-03 shape Accord and not the 03-07 shape as seen in the current WTCC. So unfortunately we can't use the skin template in Race 07.
I guess this would lend more to 'photoshop' skills than skinning in the traditional sense.
What would be cool is if someone made a nice design I'd actually have it cut from vinyl and applied to the car - you'd see your work racing around for real, and on TV too!
maybe if you look into rfactor, or "racer" you can find the car, and who know's your also lucky to get a template