Every time I read the rule book I find something new. I have a all white 77 Trans Am. Rule book states white, silver, or unpaintedvehicles shall show a contrasting color on the body. I can understand very well why this is, but I am asking for suggestions as to how others have complied with this. Another question is what is the difference between the class- Classic Production _ / CPRO and Classic Unblown Gas Coupe - / CGC. Is it that word ( coupe) that I don't understand? Last - why don't cars with blowers go a hole lot faster than those without. Isn't spell check cool!