In 1939 Rivolta founded ‘Isothermos’ a successful manufacturer of refrigeration units. and was Italy's third largest two-wheel producer, behind
Vespa and
Lambretta. The company later produced sports touring cars starting with the
Iso Rivolta IR 300, using Chevrolet 327ci engines and gearboxes. Rivolta used to say "At the wheel of a car I enjoy myself only above 120 mph." Iso entered racing, and won its class at Le Mans in 1965. In the 1960s Rivolta's company produced the
Iso Grifo, Bizzarrini, and other sports cars, all using the GM drivetrain. The Bizzarrini is now a much sought after model, having been developed by
Giotto Bizzarrini, an ex-Ferrari engineer who designed their GTO models. ==Personal life==