The Sheriff's Department car changes from a Ford Taurus to a Chevrolet Caprice. When driving to Bernie's, the car pulling off the main road is a Ford Taurus. In the next shot, the car pulling up the driveway is a Chevrolet Caprice. At the Utah border, the car is a Chevrolet Caprice. When the Sheriff's car crashes at the end of the film, it is a Ford Taurus.