PORSCHE RACING HISTORYGijs van Lennep (NL)
1975 : Mugello 1000 Km - 3rd overall : Nürburgring 1000 Km - 3rd in class : Le Mans 24 Hours - 1st in class
23 March 1975 - Mugello 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 908/03 Turbo | 908/03-006 | S3.0 | Herbert Müller (CH)/Gijs van Lennep (NL) | Team Dr. Dannesberger (D) | 3rd | 3rd | 3rd | 149 laps |
23 March 1975 - Mugello 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 908/03 Turbo | 908/03-013 | S3.0 | Leo Kinnunen (FI)/Herbert Müller (CH)/Gijs van Lennep (NL) | Team Dr. Dannesberger (D) | 16th | 7th | 6th | 120 laps |
6 April 1975 - Dijon 800 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 908/03 Turbo | 908/03-006 | S3.0 | Herbert Müller (CH)/Gijs van Lennep (NL) | Dr. H. Dannesberger (D) | 9th | 5th | 4th | 215 laps |
20 April 1975 - Monza 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 908/03-6 Turbo | 908/03-006 | S3.0 | Herbert Müller (CH)/Gijs van Lennep (NL) | Dr. H. Dannesberger (D) | DNF | 6th | 71 laps - Engine |
1 June 1975 - Nürburgring 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 52 | Porsche 911 Carrera RSR | 911 460 9063 | GT+1.6 | Toine Hezemans (NL)/Gijs van Lennep (NL)/Claude Ballot-Léna (F) | GELO-Racing-Team, Georg Loos KG (D) | 11th | 3rd | 24th | 40 laps |
15 June 1975 - Le Mans 24 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 460 9116 | GTS | John Fitzpatrick (GB)/Gijs van Lennep (NL) | Gelo Racing Team (D) | 5th | 1st | 18th | 315 laps |