From the early days of the atomic age comes this imaginative concept of a single wheel, gyroscopically-stabilized, atomic-powered Studebaker Astral. Or... Is this The Jetsons car ;-)
To think that back in the day people thought they would be putting reactors on everything... A bit to optimistic. Don't you think?
Here is the way it looked during my last visit to the Petersen Automotive Museum back in 2007: