| 2.2.1975 | 24 h Daytona | 51 | | Jones / Kirby / Hotchkis | Johnson-Bozzoni Porsche-Audi | 36th |
| 2.2.1975 | 24 h Daytona | 55 | | Lee Cutler | Cutler/Pickens | DNS |
| 2.2.1975 | 24 h Daytona | 85 | | Hulen / Coupland / Engels | John E. Hulen | 18th |
| 22.2.1975 | Stuttgart Preis Hockenheim | | | Hans Christian Jürgensen | Hans Christian Jürgensen | ?th |
| 21.3.1975 | 12 h Sebring | 51 | | Hotchkis / Kirby / Jones | Johnson-Bozzoni Porsche-Audi | 52nd |
| 21.3.1975 | 12 h Sebring | 85 | | Hulen / Coupland / Causey | John E. Hulen | 54th |
| 23.3.1975 | DARM Zolder [GT] | 332 | #914 043 0165 | Edgar Dören | Bergischer-Motor-Club | ?th |
| 23.3.1975 | DARM Zolder [GT] | 333 | #914 143 0100 | Klaus Erle | Klaus Erle | raced |
| 23.3.1975 | DARM Zolder [GT] | 337 | | Hans Christian Jürgensen | Hans Christian Jürgensen | ?th |
| 23.3.1975 | DARM Zolder [GT] | 340 | | Peter Karl Nowak | Peter Karl Nowak | ?th |
| 23.3.1975 | DARM Zolder [GT] | 341 | #914 143 0178 | Albrecht Schütz | Autohaus Max Moritz GmbH | raced |
| 23.3.1975 | DARM Zolder [GT] | 343 | | Alberto Zirkel | Bergischer Motor Club | ?th |
| 30.3.1975 | Nürburgring [GT/T] | 86 | #914 043 2075 | Dieter Ankele | Autohaus Max Moritz GmbH | 6th |
| 30.3.1975 | Nürburgring [GT/T] | 87 | #914 043 0165 | Edgar Dören | Bergischer Motor-Club im ADAC | 4th |
| 30.3.1975 | Nürburgring [GT/T] | 88 | | Hans Christian Jürgensen | Hans-Christian Jürgensen | DNF |
| 30.3.1975 | Nürburgring [GT/T] | 89 | #914 043 0734 | Wilhelm Siegle | Wilhelm Siegle | DNF |
| 30.3.1975 | Nürburgring [GT/T] | 90 | #914 043 0185 | Rolf Färber | Rolf Färber | 11th |
| 30.3.1975 | Nürburgring [GT/T] | 91 | | Horst Oberhemm | BMC Wuppertal | DNF |
| 31.3.1975 | Nürburgring Goodyear Pokal | 86 | #914 043 2075 | Dieter Ankele | Autohaus Max Moritz GmbH | 6th |
| 31.3.1975 | Nürburgring Goodyear Pokal | 87 | #914 043 0165 | Edgar Dören | Bergischer Motor-Club im ADAC | 5th |
| 31.3.1975 | Nürburgring Goodyear Pokal | 88 | | Hans Christian Jürgensen | Hans-Christian Jürgensen | DNF |
| 31.3.1975 | Nürburgring Goodyear Pokal | 89 | #914 043 0734 | Wilhelm Siegle | Wilhelm Siegle | DNF |
| 31.3.1975 | Nürburgring Goodyear Pokal | 90 | #914 043 0185 | Rolf Färber | Rolf Färber | DNF |
| 31.3.1975 | Nürburgring Goodyear Pokal | 91 | | Horst Oberhemm | BMC Wuppertal | 14th |
| 13.4.1975 | DARM Hockenheim [GT2.0/T2.0] | 61 | | Manfred Laub | Autohaus Max Moritz GmbH | ?th |
| 13.4.1975 | DARM Hockenheim [GT2.0/T2.0] | 62 | | Albrecht Schütz | Autohaus Max Moritz GmbH | ?th |
| 13.4.1975 | DARM Hockenheim [GT2.0/T2.0] | 63 | | Klaus Erle | Klaus Erle | DNA |
| 13.4.1975 | DARM Hockenheim [GT2.0/T2.0] | 64 | | Hans Christian Jürgensen | Hans Christian Jürgensen | DQ |
| 13.4.1975 | DARM Hockenheim [GT2.0/T2.0] | 65 | | Peter Karl Nowak | Peter Karl Nowak | ?th |
| 13.4.1975 | DARM Hockenheim [GT2.0/T2.0] | 66 | #914 043 0734 | Wilhelm Siegle | Wilhelm Siegle | DNS |
| 13.4.1975 | DARM Hockenheim [GT2.0/T2.0] | 68 | #914 043 0165 | Edgar Dören | Bergischer Motorsportclub | 3rd |
| 13.4.1975 | DARM Hockenheim [GT2.0/T2.0] | 71 | | Alberto Zirkel | Bergischer Motorsportclub | ?th |
| 13.4.1975 | Euro GT Imola | | | Giovanni Carminati | | DNQ |
| 13.4.1975 | Euro GT Imola | | | Del Carlo | | DNQ |
| 13.4.1975 | Euro GT Imola | | | Carlo Rebai | | DNQ |
| 20.4.1975 | 100 mile Road Atlanta I | 85 | | Coupland | | 21st |
| 20.4.1975 | 100 mile Road Atlanta II | 85 | | Hulen | | 22nd |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 48 | #914 043 2075 | Dieter Ankele | Autohaus Max Moritz GmbH | ?th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 54 | #914 043 0165 | Edgar Dören | Bergischer Motor Club (BMC) | 15th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 65 | | Hans Christian Jürgensen | Hans Christian Jürgensen | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 72 | | Peter Karl Nowak | Peter-Karl Nowak | ?th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 93 | | Werner Christmann | Werner Christmann | DNA |
| 4.5.1975 | 100 mile Laguna Seca II | 22? | #914 043 0529 | Bill Polich | | 23rd |
| 4.5.1975 | 100 mile Laguna Seca I | 51 | | John Hotchkis | | 22nd |
| 4.5.1975 | 100 mile Laguna Seca II | 51 | | Robert Kirby | | 21st |
| 4.5.1975 | 100 mile Laguna Seca I | 80? | #914 043 0529 | Bill Polich | | 19th |
| 4.5.1975 | DARM Sembach [GT] | | | Albrecht Schütz | Autohaus Max Moritz GmbH | ?th |
| 4.5.1975 | DARM Sembach [GT] | | | Hans Christian Jürgensen | Hans Christian Jürgensen | ?th |
| 4.5.1975 | DARM Sembach [GT] | | | Alberto Zirkel | Bergischer Motorclub e.V. | ?th |
| 4.5.1975 | DARM Sembach [GT] | | #914 043 0734 | Wilhelm Siegle | Wilhelm Siegle | ?th |
| 4.5.1975 | DARM Sembach [GT] | | | Peter Karl Nowak | Peter-Karl Nowak | ?th |
| 4.5.1975 | DARM Sembach [GT] | | #914 043 0165 | Edgar Dören | Bergischer Motorclub e.V. | ?th |
| 4.5.1975 | DARM Sembach [GT] | | | Manfred Laub | Autohaus Max Moritz GmbH | ?th |
| 8.5.1975 | Renntraining Diepholz | | | Hans Christian Jürgensen | | 1st |
| 10.5.1975 | 6 h Riverside | 51 | | Kirby / Jones | Max-Dial | 40th |
| 10.5.1975 | 6 h Riverside | 80 | #914 043 0529 | Polich / Basurto | Montgomery Real Estate | 17th |
| 10.5.1975 | 6 h Riverside | 96 | | Mandella / Thomas | - | 37th |
| 11.5.1975 | Saarlouis [GT] | | | Peter Karl Nowak | Peter-Karl Nowak | ?th |
| 18.5.1975 | DARM Salzburgring [T+2.0/GT] | 8 | | | | DNE |
| 18.5.1975 | DARM Salzburgring [T+2.0/GT] | 10 | | | | DNE |
| 18.5.1975 | DARM Salzburgring [T+2.0/GT] | 11 | | Albrecht Schütz | Autohaus Max Moritz | ?th |
| 18.5.1975 | DARM Salzburgring [T+2.0/GT] | 15 | | | | DNE |
| 18.5.1975 | DARM Salzburgring [T+2.0/GT] | | | Klaus Erle | Klaus Erle | ?th |
| 18.5.1975 | DARM Salzburgring [T+2.0/GT] | | #914 043 0165 | Edgar Dören | Bergischer Motorclub e.V. | ?th |
| 18.5.1975 | DARM Salzburgring [T+2.0/GT] | | | Alberto Zirkel | | DNF |
| 25.5.1975 | 100 mile Hockenheim | | #914 043 0734 | Wilhelm Siegle | Wilhelm H. Siegle | ?th |
| 25.5.1975 | 100 mile Hockenheim | | | Dieter Ankele | Autohaus Max Moritz GmbH | ?th |
| 26.5.1975 | 100 mile Lime Rock II | 51 | | John Hotchkis | | 16th |
| 26.5.1975 | 100 mile Lime Rock I | 51 | | John Hotchkis | | 26th |
| 26.5.1975 | 100 mile Lime Rock I | 85 | | Hulen / Coupland | | DNA |
| 26.5.1975 | 100 mile Lime Rock II | 85 | | Hulen / Coupland | | DNA |
| 1.6.1975 | 100 mile Mid-Ohio | 51 | | John Hotchkis | | DNA |
| 1.6.1975 | 100 mile Mid-Ohio | 85 | | Hulen / Coupland | | DNA |
| 8.6.1975 | DRM Hockenheim Rhein-Pokal | 82 | #914 043 2075 | Dieter Ankele | Autohaus Max Moritz GmbH | ?th |
| 8.6.1975 | DRM Hockenheim Rhein-Pokal | 83 | | Peter Karl Nowak | Peter Karl Nowak | DNF |