Porsche 906

The Porsche 906 or Carrera 6 was the last street-legal racing car from Porsche. It was announced in January 1966 and 50 examples were subsequently produced, thus meeting the homologation requirements of the FIA's new Group 4 Sports Car category to the letter. The type would also compete in modified form in the Group 6 Sports Prototype class.

History

A successor to the Porsche 904, and designed under Ferdinand Piëch's new regime at Porsche R&D, the 906 replaced the boxed steel structure of the 904 which used the fiberglass body for extra structural strength with a tubular space frame and unstressed fiberglass body. The fiberglass itself was laid up by hand, producing consistent results, instead of the uneven spraying technique used on the 904.

The result was a car that weighed 580 kg (1,280 lb), approximately 113 kg (250 lb) lighter than the 904/6 (the 6-cylinder 904). The engine regularly fitted was the 901/20 6-cylinder lightweight racing engine with 220 hp and carburetors, although some examples that were raced by the factory team received fuel-injected or 8-cylinder engines, especially in hillclimbing events where Porsche competed with Ferrari Dinos for the European championship.