Porsche 917K racing at high speeds! (brutal flat-12 sound)

1970 - A Year To Remember - John Wyer's Gulf Porsche 917 team

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917 engine starting - 1st time in 30 years

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Der Porsche 917 beim CanAm-Revival am Hockenheimring

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Derek Bell: what it feels like to do 246mph at Le Mans. At night.

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1970 Porsche 917K: Warm Up, Demonic Downshifts & RAW Flat-12 Sound!

Imola Classic 2018 - Porsche 917K, Alfa T33/3, BMW 3.0 CSL, Jaguar XJR-14 & More!

Porsche 917K racing at Spa 2019 (incl. revving)