Revealing mistake: Numerous times throughout the movie, we see a dust cloud kicked up by the ZR1, as to be expected. However in some shots from in front of the ZR1 we see a dust cloud kicked up that the ZR1 drives through. This can not be the FBI helicopter as that is a fair distance behind the ZR1. Clearly from the camera van.
Factual error: After the SWAT vehicles are disposed of, there's a shot of the front of the car, and there are scrape marks. As cool as it looked, being that is a Corvette, there is no way that it could happen. This is due to the car body being made of basically fiberglass, and couldn't support the weight of another vehicle. Also, the body would be trashed after the impact, therefore the engine destroyed, and not drivable.