  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.m.l twite, the world's racing cars, 1971, page 130 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 piÃ«ch'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 , approximately  lighter than the 904/6 (the 6-cylinder 904). the engine regularly fitted was the 901/20 6-cylinder lightweight racing engine with 220&nbsp;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. === racing history ===  in its debut in the 1966 24 hours of daytona, the carrera 6 finished 6th overall, and won its class against ferrari dino 206 ps. at the 12 hours of sebring, hans herrmann/gerhard mitter finished fourth overall and won the class, as at the 1000&nbsp;km of monza. the 1000&nbsp;km at spa were disappointing, as were the 1000&nbsp;km nÃ¼rburgring where the dinos were only beaten by the chevrolet-v8-powered chaparral. a privately entered 906 secured an overall victory at the 1966 targa florio when the factory cars failed. at the 1966 24 hours of le mans, the 906 placed 4-5-6-7 behind three ford gt40 mk iis, outlasting all of the previously dominant v12-engined ferrari ps. == construction == unlike previous racing porsches, the 906's body was tested in a wind tunnel, resulting in a top speed of  at le mans, quite fast for a 2-liter engine car. it shows already a close resemblance to
24_Hours_of_Le_Mans_race_cars Porsche_in_motorsport Porsche_vehicles Sports_cars Sports_prototypes Sports_racing_cars