24 Hours of Daytona

Car number 89, a Porsche 911 S co-driven by Mike Tillson, Al Holbert, and Dieter Oest, followed by car number 33, a Ford Mustang co-driven by John McComb and Dave Dooley.

24 Hours of Le Mans

6 Hours of Watkins Glen

Car number 3, a Ford Capri RS 2600 co-driven by Harry Theodoracopulos and Horst Kwech, followed by car number 14, a Porsche 911 Carrera RSR co-driven by Al Holbert and John McComb, and another car.

Trans-Am Series Watkins Glen

John Buffum drives car number 24, a Ford Escort RS 1600, followed by car number 14, a Porsche 911 Carrera RSR co-driven by Al Holbert and Mark Donohue.

Trans-Am Series Watkins Glen

John Buffum drives car number 24, a Ford Escort RS 1600, followed by car number 14, a Porsche 911 Carrera RSR co-driven by Al Holbert and Mark Donohue.