The Phantom Racer is the villain and was the disguise of Ken Rogers in "The Spooky Case of the Grand Prix Race", an episode of The Scooby-Doo Show. He had a trick car that could extend its wheels and go over other cars, capturing them.
According to Mr. Osbourne, the Phantom Racer was a famous Grand Prix driver who went off a cliff many years ago. His ghost sought vengeance on all race drivers. The phantom was revealed to be Ken Rogers, a race driver who plotted to steal other racers' cars and repaint them for sale overseas.
The Phantom Racer was capable of extreme cruelty. At one point in the episode, he put Shaggy Rogers in a cave and tried to seal the entrance with a brick wall.