Continuity mistake: During the chase through the gravel roads and the rock quarry the Trans-Am is following the Vette. In one scene the scrub brush can be seen breaking off the low-hanging front spoiler on the Vette. It is gone for the remainder of that particular location. However, once the car leaves the gravel road and is back on paved highway immediately following, and for the rest of the film, the spoiler is back in place as if nothing happened.
Trivia: During the course of the story, the Vette goes from being red, then painted gold, and finally back to red again. The producers actually had two cars, one red and the other gold, custom made before production began. This was to help speed up the filming. During the course of filming, both cars were stolen, and two more, another red one and another gold one were hastily made to finish production. The original two were shortly recovered, and all four were used as displays at various movie theaters across the country when the film premiered.