Ferrous Magazine Arsenal - What if you could park horizontally?
In 1938, Californias Brooks Walker patented the 5th wheel product known as Park Car. With the use of a collection of gears and hydraulic pumps and strains, activation was designed by means
Brooks Walker's Fifth Wheel: This 1950s Car Had an Extra Wheel to Help With Parking | Vintage News Daily
Why was the 5th wheel used to assist cars in parallel parking abandoned? : r/AskHistorians
The Brooks Walker Fifth Wheel
The 1950s self-parking Cadillac | Vehicle Dynamics International
Parccar - “Spare Tire” Parking Innovation From The 1950s Would Be So Useful Right Now - ThrottleXtreme