They don't say in the movie at all, except to say that it's got "a little extra somethin'" which, I believe they later go on to say is a supercharger. The real cars were quite different. All were ordered with black interiors, but one was white, one was green originally, and I can't remember the other color. THe two that they used for the racing scenes and all had 440's, the one they jumped had either a 383 or a 318, I can't remember...
