The Porsche 550 was a racing sports car produced by Porsche from 1953 to 1956. In that time only 90 Porsche 550s were produced, but it quickly established dominance in the 1.1- and 1.5- liter classes.
The Porsche 550 is a mid-engine car with an air-cooled four-cylinder engine, following the precedent of the 1948 Porsche 356/1 prototype designed by Ferry Porsche. The mid-engine racing design was further developed with Porsche's 718 model; its advantages led to it becoming the dominant design for top-level racing cars by the mid-1960s.
The Porsche 550 has a solid racing history; the first race it entered, the Nurburgring Eifel Race in May 1953, it won. The 550 Spyder would usually finish top 3 in its class. Each Spyder was designed and customized to be raced.