When Stacy is driving the car and is in a gun battle with bad guys in a red Chevelle during the first 15 - 20 minutes of the movie, the car she is driving alternates between a brown Lincoln Continental and a black Mercury Marque. In addition the red Chevelle alternates between some front grill damage and no grill damage.
When Stacy is driving the car and is in a gun battle with bad guys in a red Chevelle during the first 15 - 20 minutes of the movie, the car she is driving alternates between a brown Lincoln Continental Town Car, a black Mercury Marquis, and Ford LTD.