PORSCHE RACING HISTORYPorsche 911 Carrera RSR - Chassis No. 911 360 0643
1 April 1973 - Nürburgring 300 Km - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 121 | Porsche 911 Carrera RSR | 911 360 0643 | GT3.0 | Claude Ballot-Léna (F) | Claude Ballot-Léna (F) | 1st | 1st | 14 laps |
13 May 1973 - Euro GT GP Paris - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 911 Carrera RSR | 911 360 0643 | GT3.0 | Claude Ballot-Léna (F) | Ballot-Lena (F) | 1st | 1st | 3rd | 80 laps |
2 June 1973 - European GT Championship Imola - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 82 | Porsche 911 Carrera RSR | 911 360 0643 | GT3.0 | Claude Ballot-Léna (F) | Sonauto (F) | 3rd | 2nd | 40 laps |
24 June 1973 - Euro GT Nivelles - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 911 Carrera RSR | 911 360 0643 | GT3.0 | Claude Ballot-Léna (F) | Ballot-Léna (F) | 2nd | 2nd | 54 laps |
8 July 1973 - European GT Championship Estoril - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 911 Carrera RSR | 911 360 0643 | GT3.0 | Claude Ballot-Léna (F) | Sonauto (F) | 4th | 4th | 3rd | 79 laps |
5 August 1973 - Euro GT Thruxton - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 15 | Porsche 911 Carrera RSR | 911 360 0643 | GT3.0 | Claude Ballot-Léna (F) | Sonauto (F) | 1st | 1st | 1st | 40 laps |
2 September 1973 - Monza 6 Hours - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 911 Carrera RSR | 911 360 0643 | GT3.0 | Claude Ballot-Léna (F)/Charles Geeraerts (B) | Sonauto (F) | 5th | 4th | 5th | -11 laps |