This was a two wheel Gyro car. A 1954 Ford Gyron, dreamed up by futurist Sydney Mead, who later went on to work with major studios on such films as: as Star Trek: The Motion Picture, followed by Blade Runner, Tron, 2010, Short Circuit, Aliens, Timecop, Johnny Mnemonic and Mission: Impossible III. (wiki)
I have said this often, but the 1950’s was a time of forward thinking, people looking out through the windshield instead of the rear view mirror.
So get out there and write, writer’s of Sci-Fi! Let’s lay off the dystopian past and get back to designing for the future…. But please don’t cancel the Walking Dead series…… LOL