Sure. There are 6 castings: '69 Camaro. '70 Cuda. '41 Willys coupe, '63 Vette, '69 Chevelle and '66 GTO. Each of these was made with and without a monster motor. And the entire set was made with and without "racing" wheels as a hobby exclusive. That is a total of 24 cars, 4 versions of each of the six castings. I think what may confuse some people is that this is the first set released late in 2001 as a memorial. It was so popular that two more sets were made in '02 and '03 with similar graphics using different castings.
Vote America was in 4 releases, the first two were: '57 Chevy, '69 Camaro, '69 Chevelle, '66 Mustang, '69 Charger and '70 Cuda; each was issued in liquid blue and liquid red. The next two releases (Vote America II) were: '55 Chevy, '69 Daytona, '50 Studebaker, '49 Merc, '56 Olds and '66 GTO; each was issued in liquid blue with a monster motor or liquid red with a stock hood.
Hope that helps.