I like the idea of one car per generation , but the problem is that a couple of the generations are long and have drastic body style changes . So you could almost have two for the C 1 , C 3 , and C 4 generations . I did see a design you did that was two columns and liked that better . That way you could do early and late for each and mix coupe and convertible . For the C 1 , it ' s a really tough call between the original body style and the cove body style that started in ' 56 . Since the originals were , by any rational measure , bad cars and the coves came in more or less with performance , I suggest keeping the second car you have here , which looks about like a ' 56 to me . I find your C 3 choice odd as it ' s a ' 73 , which is the transition between chrome bumpers and plastic bumpers . Again , based on performance heritage , I ' d suggest a fullchrome bumper year and my favorite is the 70 72 style . For C 4 , just a matter of taste , but I prefer the ' 91 and later body style . For the C 5 and C 6 , base coupe is the way to go for the broadest audience . Best of luck with this . It ' s a great concept and I look forward to seeing the finished product .