One of the police cars is an AMC Matador, but it changes back and forth to a 1972 Plymouth Satellite during a chase scene.
The police car that chases Hoover through the farm is a 1972 Plymouth Satellite, but it changes to a 1970 model before crashing into a mud bath.
The house that Hoover and Darlene hide in belongs to one of her friends, whose family is away in Honolulu. The film takes place in the fall, so how would they be able to take their daughter out of school for that?