The Fiat 850 was something of an evolution of the Fiat 600, adapting the body of that car to take the 843cc ohv 4-cylinder engine. Launched in 1964, the Fiat 850 overlapped the production of the Fiat 600 for a few years. In 1965 Fiat supplemented the 850 saloon with the Fiat 850 spider designed by Giorgetto Giugiaro and built by Bertone, and the Fiat 850 Coupe designed at Fiat under Boano. Both the Coupe and Spider shared the mechanics of the 850 saloon, but the engines were tuned. Cars were revised in 1968 with a larger 903cc engine and changed lamps on both spider and coupe. There was a series 3 with changed lamps in 1971 but this was quickly replaced by the Fiat 127 coupe in 1971. A 'Familiare' 6-seater van version was also offered. 380,000 Coupes and Spiders were sold and 2,203,000 Fiat 850 saloons.