From an industrial dynasty Renzo Rivolta produced good quality motorcycles after the war. In the 1950's he was working on a small city car which with collaboration became the Iso Isetta Tourismo or Isetta bubble car, driven by a 2 cylinder motorbike engine with 2 wheels close together at the rear eliminating the need to a differential. They built some 20,000 but were licenced to the UK, France, Brazil and BMW who alone made some 130,000.
With the help of Giotto Bizzarrini and bodywork design by Guigaro the Iso Rivolta IR300 was built, presented in 1962 for 1963. Under the body was a small block 327 Chevrolet with rear end from the Jaguar. The Grifo was the Grand Tourismo, with 22 examples of the competition A3C built before Bizzarrini left to make his similar 5300 GT. When Renzo died in 1966, aged only 55, his 26 year old son Pierro took over, whose first job was to make the 4 seater S4- Fidia launched in 1967 with body designed by the young Giorgetto Guigaro. Later Ford engined in 1973 and 1974 it was guaranteed to have a speed of 150mph. It was claimed to be the fastest 4 seater on the road. The Grifo was given a 7 litre engine, and a 2+2 Lele to replace the IR300. After a factory move in 1972 things unravelled and the company was gone by 1974. A great shame that Renzo Rivolta had died so young.