surprised no one mentioned Bad Boys 2
03 Buick Blackhawk
Ferrari 550 Marenello
50 Chevrolet one fifty
54 Chevrolet two ten
68 Chevelle SS
60's Impalas
70 Dodge super bee
67 Firebird
79 Pontiac trans-am
and my favorite 88 Chevrolet turbo sprint.
I know im missing a few but quite a slew of cars in this movie.
Also if you're looking for some specific car in a movie go here.
http://www.imcdb.org/search.php