PORSCHE RACING HISTORYToine Hezemans (NL)
1975 : Mugello 1000 Km - 1st in class : Mugello 1000 Km - 3rd in class : Dijon 800 Km - 1st in class : Nürburgring 1000 Km - 2nd in class : Nürburgring 1000 Km - 3rd in class : European GT Championship Norisring - 2nd : Monza 6 Hours - 3rd overall
23 March 1975 - Mugello 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 44 | Porsche 911 Carrera RSR | 911 460 9040 | GT | Manfred Schurti (FL)/Toine Hezemans (NL)/John Fitzpatrick (GB) | Gelo Racing Team (D) | 9th | 1st | 24th | 134 laps |
23 March 1975 - Mugello 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 45 | Porsche 911 Carrera RSR | 911 460 9077 | GT | Mario Casoni (I)/Toine Hezemans (NL)/Manfred Schurti (FL) | Gelo Racing Team (D) | 11th | 3rd | 21st | 133 laps |
6 April 1975 - Dijon 800 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 33 | Porsche 911 Carrera RSR | 911 460 9040 | GT | John Fitzpatrick (GB)/Toine Hezemans (NL) | Gelo Racing Team (D) | 5th | 1st | 16th | 220 laps |
20 April 1975 - Monza 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 77 | Porsche 911 Carrera RSR | 911 460 9040 | S3.0 | Toine Hezemans (NL)/Manfred Schurti (FL)/John Fitzpatrick (GB) | Gelo Racing Team (D) | 6th | 5th | 33rd | 159 laps |
20 April 1975 - Monza 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 78 | Porsche 911 Carrera RSR | 911 460 9077 | S3.0 | John Fitzpatrick (GB)/Toine Hezemans (NL)/Manfred Schurti (FL) | Gelo Racing Team (D) | 7th | 6th | 25th | 158 laps |
4 May 1975 - Spa 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 45 | Porsche 911 Carrera RSR | 911 460 9077 | GT | Toine Hezemans (NL)/Tim Schenken (AUS)/John Fitzpatrick (GB) | Gelo Racing (D) | 9th | 5th | 20th | 47 laps |
1 June 1975 - Nürburgring 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 Carrera RSR | 005 0005 | GT+1.6 | John Fitzpatrick (GB)/Toine Hezemans (NL)/Manfred Schurti (FL) | GELO-Racing-Team, Georg Loos KG (D) | 9th | 2nd | 19th | 40 laps |
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 |
| 60 | Porsche 911 Carrera RSR | 911 460 9040 | GTS | Toine Hezemans (NL)/Manfred Schurti (FL) | Gelo Racing Team (D) | DNF | 23rd | 41 laps - Accident |
29 June 1975 - European GT Championship Norisring - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 911 Carrera RSR | GT3.0 | Toine Hezemans (NL) | Gelo Racing Team Georg Loos (D) | 2nd | 66 laps |
17 August 1975 - DRM Kassel-Calden - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 911 Carrera RSR | Div.1 | Toine Hezemans (NL) | Gelo Racing Team Georg Loos (D) | 5th | 5th | 10th | 40 laps |
28 September 1975 - Monza 6 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 16 | Porsche 911 Carrera RSR | GT3.0 | Toine Hezemans (NL)/Mario Casoni (I)/Manfred Schurti (FL)/John Fitzpatrick (GB) | Gelo Racing Team (D) | 3rd | 3rd | 2nd | 191 laps |