PORSCHE RACING HISTORYPorsche 911 SC - Chassis No. 911 460 0059
One of 15 RSRs specially built for Roger Penske’s IROC Series and is one of just a few of the 15 RSRs that competed in all four of the races. 1973 - Roger Penske aquired new from Porsche
27 October 1973 - IROC Riverside 1 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 911 Carrera RSR | 911 460 0059 | George Follmer (USA) | Roger Penske (USA) | 4th | 12th | 30 laps |
27 October 1973 - IROC Riverside 2 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 911 Carrera RSR | 911 460 0059 | David Pearson (USA) | Roger Penske (USA) | 2nd | 4th | 30 laps |
28 October 1973 - IROC Riverside 3 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 911 Carrera RSR | 911 460 0059 | Roger McCluskey (USA) | Roger Penske (USA) | 12th | 2nd | 8 laps - Oil Leak |
14 February 1974 - IROC Daytona - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 911 Carrera RSR | 911 460 0059 | Bobby Unser (USA) | Roger Penske (USA) | 3rd | 5th | 25 laps |
10 July 1976 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 95 | Porsche 911 Carrera RSR | 911 460 0059 | TA-II | Robert Frostrom (USA)/John Moore (USA) | Robert Frostrom (USA) | 18th | 11th | 25th | 109 laps |
30 May 1977 - Trans-Am Kent - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 41 | Porsche 911 Carrera RSR | 911 460 0059 | TA-II | Bill Hanel (USA) | Hanel Racing | 7th | 4th | 10th | 42 laps |
12 June 1977 - Trans-Am Portland - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 911 Carrera RSR | 911 460 0059 | TA-II | Bill Hanel (USA) | Hanel Racing | 8th | 6th | 12th | 47 laps |
11 June 1978 - Trans-Am Portland - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 47 | Porsche 911 Carrera RSR | 911 460 0059 | TA-II | Bill Hanel (USA) | Hanel Racing | 3rd | 3rd | 12th | 48 laps |
30 July 1978 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 41 | Porsche 911 Carrera RSR | 911 460 0059 | GTO | Bill Hanel (USA) | 20th | 10th | 14th | 20 laps - DNF |
5 August 1979 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 21 | Porsche 911 Carrera RSR | 911 460 0059 | GTO | Neil Shelton (USA) | 11th | 1st | 17th | 48 laps |
5 July 1980 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 911 SC | 911 460 0059 | Trans Am | Monte Shelton (USA)/Bruce Leven (USA) | Porsche-Audi Northwest | 16th | 3rd | 20th | 114 laps |
2 August 1981 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 28 | Porsche 911 Carrera RSR | 911 460 0059 | GTO | Neil Shelton (USA) | Neil Shelton | 9th | 2nd | 15th | 49 laps |
1 August 1982 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 460 0059 | GTO | Neil Shelton (USA) | Porsche Audi Northwest | 12th | 8th | 9th | 44 laps |