Porsche's 718 Spyder made its debut at the 1957 24 Hours of Le Mans. Undergoing further development, the car racked up many wins after that.
The car pictured above was built in 1959 and was owned by Roy Schechter of Miami, who had already been racing successfully in a gullwinged Mercedes sports car. He paid about $8,000 for the Porsche. Its first race was the 4 hours of Alamar, which took place near Havana, Cuba, that year.
An association with actor McQueen can multiply the value of a machine.