The 1971 Canadian-American Challenge Cup was the sixth season of the Can-Am auto racing series. It was contested by FIA Group 7 two-seater racing cars competing in two-hour sprint races. The series be
Peter Revson won the series driving a McLaren M8F
Jo Siffert placed fourth driving a Porsche 917/10
Mario Andretti placed 19th driving a Ferrari 712M
The Porsche 917 is a sports prototype race car developed by German manufacturer Porsche to exploit the regulations regarding the construction of 5-litre sports cars. Powered by a Type 912 flat-12 engi
1971 Can-Am season
…BRM in the 1971 Formula One season, and also was one of the 1971 World Sportscar Championship-winning Porsche factory drivers, assigned to a Gulf-Wyer-Porsche 917K. Both sportscar series shared the "Six-Hours and The Can-Am" weekend at Watkins Glen in late July, final race of the WSC and 4th round of Can-Am. Siffert…
The number 23 Porsche 917K in the famous red and white Salzburg livery was the winner of the 1970 24 Hours of Le Mans
The type 912 Flat-12 engine
Jackie Stewart driving his Matra MS10 with the movable wing designs that was banned in May 1969, affecting also the 917
Original 1969 917 at the Nürburgring, with short tail