Little did he know, there were already plenty of upgrades installed ... to the carburetor. The Fiat 500 (also known as the Cinquecento) went on sale in 1957 with a rear-mounted 479-cubic ...

Learn More. What happens when the ultra-cute Fiat 500 is stretched more than two feet in length? It becomes a much more practical car, with two more doors, a roomy rear seat, and decent cargo space.