Table:
text: Mont-Tremblant Champ Car Grand Prix
Race winners
Race winners
Season Date_ Driver Chassis Engine Series Report
1967 August 6 Mario Andretti Brawner Hawk Ford USAC Championship Car report
1968 August 4 Mario Andretti Brawner Hawk Ford USAC Championship Car report
1969 September 7 David Hobbs Surtees Chevrolet SCCA Formula 5000 report
1970 August 1 George Follmer Lotus Ford SCCA Formula 5000 report
1971–2006: Not held 1971–2006: Not held 1971–2006: Not held 1971–2006: Not held 1971–2006: Not held 1971–2006: Not held 1971–2006: Not held
2007 July 1 Robert Doornbos Panoz Cosworth Champ Car World Series report

Question: Which engine is responsible for the USAC Championship Car at the Mont-Tremblant Champ Car Grand Prix?