You scratch my back, I scratch yours.
Ike saw the Autobaun when in Germany, then got elected president and used military/federal funds to build our national highway system (good for car sales). Atomic energy was scary (hey don't they make bombs with that stuff), so a
PR campaign "genie in the bottle" with friendly cartoons was started. Part of this "keep the public from going anti-nuclear" effort bleed into other parts of society including
Dream Cars.
The big bright yellow covered book called "FUTURE CARS" I discovered at age six in 1966 had the Atomic-car and several Flying-Cars, which is when the hovercraft bug hit me.
Cool cars, just use your imagination a little and have some fun.