Heh... Great topic. As a recent netflix un-subscriber (Ran out of time to watch movies) I have to throw in my $0.02.
Blues Brothers is as much a car movie as a music movie. Dan Aykroyd is a notorious car buff, and he meticulously specified what the car would be like. Until Blues Bros. 2K (a piece of diarrhea if there ever was...) it held the record for most cars crashed in a movie. In the scene where the Nazis go over the freeway, they actually dropped the pinto from a helo.
Smokey and the Bandit, already mentioned
The Wraith was quite a badass movie.
Bullitt, again, quite a badass movie.
BUT.... Even if it was about big rigs...
MAXIMUM OVERDRIVE
The steven king written B movie with emilio estevez, about aliens who posess cars and other mechanical things, and use big rigs to hold people hostage and cause general mayhem? That was a pretty good movie.