This year, we celebrate the 50th anniversary of the popular Canadian-American Challenge Cup or Can-Am for short. With entrants hampered by relatively few regulations, Can-Am attracted some formidable machines that grew more potent with the year. In 1968, the championship was won by the McLaren M8A Chevrolet. Built around an aluminium monocoque, this was the first McLaren powered by a big-block V8. It had over 600 bhp on tap and won four of the six rounds. Denny Hulme, using the featured example won three of these races, beating team-mate Bruce McLaren to the championship in what was quickly becoming the Bruce and Denny show.
McLaren's domination was finally brought to an end in 1972 by this very Porsche 917/10K. The new Porsche was nearly twice as powerful as the M8A of four seasons earlier, courtesy of a twin-turbocharged flat 12 engine. Follmer won five of the nine races of the 1972 season with the Penske entered chassis 917/10-003.
Today, we also pay tribute to American racer Tony Adamowicz, who sadly passed away earlier this week from aggressive brain cancer. Very versatile, he raced a wide variety of machines but is perhaps best remembered for his exploits in this Eagle Mark 5 Chevrolet. He won the 1969 Continental Championship in this Formula A racer against very strong competition. It was then stored for many years before it was finally restored for the late Doug Magnon. From 2009, Adamowicz raced 'his' Eagle again with great success. To date he has been the only one that ever raced this particular chassis.

Enjoy the links:

1968 - 1969 Eagle Mark 5 Chevrolet - Images, Specifications and Information

1968 McLaren M8A Chevrolet - Images, Specifications and Information

1972 Porsche 917/10K Chassis 917/10-003 - Ultimatecarpage.com