After working with Renzo Rivolta at the Italian Iso Company since 1962, Giotto Bizzarrini formed his own company in 1965 to build his 2+2 Coupe's. The racing version of the 5300GT received the Corsa name and the road cars were badged Strada. A short while later the Strada was joined by the America model, which sported a fiberglass body and a double wishbone rear suspension. Production of the 5300 GT lasted until well into 1968 and a combined total of 115 examples were produced. There was no replacement design for the 5300 GT, and in 1972 Bizzarrini was forced to close his factory. He returned to consulting and has since produced a number of prototypes.