Note: Timecodes are based on DVD releases of the episodes (Region 1, NTSC).
At 15:25 Hasselhoff is wearing a standard digital watch, not his comlink, which can be seen at 18:16 and 27:13.
Three completely separate locations make up the jump in this sequence. See also that Hasselhoff is reacting to nothing behind the car.
K.I.T.T. is visible behind Margot's car before he pulls onto the runway.
Shots of Hasselhoff reacting to Margot's car and running her off the road were filmed in a different location to the car chase.
K.I.T.T.'s pursuit indicator changes colour throughout the show, thanks to stock footage from different periods of the show. First violet, then red, then white.
STUNTS & DOUBLES:
Michael is replaced with a dummy, and there seems to be a camera mounted in the passenger area.
Ramps can be seen flipping the crashing cars.
Cameraman (H. John Penner) is reflected in the windshield of the jet.
Crew vehicles can be seen parked beyond the runway.