Continuity mistake: When KITT jumps into the empty factory to save Michael the ramp is set a foot higher than the floor, yet when they drive out the same hole, the ramp is level with the floor so it can be driven down.
Revealing mistake: When K.I.T.T is called by Michael to get between them at the drive by shooting, you can see on the right side of K.I.T.T all the special effect plugs that replicate gun fire hitting the car. (00:09:20)
Continuity mistake: When KITT lands in the back of the pick-up truck near the end of the episode, the internal shot shows the girl starting to get out of the passenger's side. But in the next external shot, she is getting out of the driver's side.
Answer: I would say that unless there's visual evidence it was another K.I.T.T. car, as in you could see the bar scanner or cut steering wheel, people on here would correct the mistake by saying more than one 1982 Pontiac Firebird Trans-Am was sold and there's no reason it's meant to be a random car.
Bishop73