Mark Donohue (USA)
1974 : IROC Daytona - 1st
14 February 1974 - IROC Daytona - IROC - International Race of Champions
No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
1 | Porsche 911 Carrera RSR | 911 460 0090 | Mark Donohue (USA) | Roger Penske (USA) | 1st | 1st | 25 laps |