Porsche 550 Spyder – $6 Million

Widely popular as a race car between 1953 and 1956, the Porsche 550 Spyder is an iconic roadster. There were only 90 of these cars produced and, understandably, less survived into modern times. It has an all-aluminum body with a 1.5-liter four-cylinder boxer engine, known as “Fuhrmann Engine,” and had an output of 110 horsepower. The car’s design was inspired by the Porsche 356, which was built by Ferry Porsche from other Spyder prototypes.

It was built to be as low as possible to the ground to make it an efficient race car, which was perfectly demonstrated by Formula One driver Hans Hermann during the 1954 Mille Miglia. At the same time, the Spyder was also used as a road car. The American comedian Jerry Seinfield owned one but sold it alongside 16 other cars recently. This car alone sold for over $5 million—perhaps for cash, not cash loans for sure.