Very early on in the film, when Cates and Hammond are on their first car ride together, you can see Reggie's dusty convertible a few car lengths up the road. The convertible would not actually be taken out of storage where it had been for nearly three years, until much later in the film.
During the shootout with Ganz and Billy at the hotel in the beginning of the movie, Cates actually gets off SEVEN shots from a six-shot revolver without reloading! After Cates reloads, Ganes fires EIGHT shots from the same gun in that scene. Ah, the magic of movies!