Light Rider Project - Everyday Electronics and Electronics Monthly - OCT86 - Pages 529-31.
Knightrider Intelligent Car: 'Kit' Front Display in the classic '80's TV series
with David Hasselhoff as Michael Knight . Lightrider display looks similar to this. In fact 'Kit's' display was Red as is Lightrider's.
Photo of the Lightrider Project on Final Construction. With a 9V Battery, 6 LED display, speed variable resistor, and ON/OFF switch.