Supercar (TV series) series proposed to the BBC by Hugh Woodhouse that was never produced. Anderson would later claim that the whole point of having a series based on a vehicle was to minimize having to show the marionettes walking, an action which he felt never looked convincing. The plot of the show consisted of Supercar, a vertical takeoff and landing craft invented by Prof. Rudolph Popkiss and Dr. Horatio Beaker, and piloted by Mike Mercury. On land it rode on a cushion of air rather than wheels. Jets in the rear allowed it to fly like a jet and retractable wings were
Gerry Anderson successful in both the UK and America and its theme song "Avenues and Alleyways" became a hit record in the UK for singer Tony Christie. It was also the first live-action series produced by Anderson to survive to a second season. Following "The Protectors", Anderson worked on several new projects, none of which he was able to take into production. A proposed second series of "UFO" was not undertaken, and a return to marionettes in the television pilot for a series called "The Investigator" failed to find a buyer. Elements of the abandoned second series of "UFO" were eventually turned