Fun story, my dad met a guy who talked about a movie he had seen once, where racers ran over people to score points, my dad thought this guy was taking the piss and never considered the movie might be real. Until one day he was watching TV randomly and stumbled on the movie. But as people from the era of cable TV might remember, it was hard to know the name of the movie you just caught midway through, unless the channel showed the name of the movie you were out of luck, so I grew up knowing that this movie existed, but never knew the name. When the remake came out the plot seemed familiar enough for me that I immediately went to check what it was based on and finally put the final nail in the coffin of a long family mistery.