PORSCHE RACING HISTORYGerhard Holup (D)
1975 : Zolder [GT/T+2.0] - 3rd overall
13 April 1975 - DARM Hockenheim [GT+2.0/T+2.0] - DARM - Deutscher Automobil-Rundstrecken-Pokal
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 911 Carrera | GT+2.0 | Gerhard Holup (D) | Gerhard Holup | 8th | 7th |
1 June 1975 - Nürburgring 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 69 | Porsche 911 Carrera RSR | GT+1.6 | Anton Stocks (D)/Gerhard Holup (D) | AMC Duisburg (D) | 19th | 7th | 50th | 37 laps |
19 October 1975 - Zolder [GT/T+2.0] - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 911 Carrera RSR | 005-0004 | T/GT+2.0 | Gerhard Holup (D) | Gerhard Holup (D) | 3rd | 3rd |