PORSCHE RACING HISTORYLeopold von Bayern (D)
1983 : DRM Avus - 1st in class : DRM Diepholz - 1st in class
1 May 1983 - DRM Avus - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 936/80 | 936-004 | Gr.6 | Leopold von Bayern (D) | Warsteiner-Team/Joest-Racing (D) | 5th | 1st | 5th | 21 laps |
24 July 1983 - DRM Diepholz - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 936/80 | 936-004 | Gr.6 | Leopold von Bayern (D) | Joest Racing | 5th | 1st | 10th | 60 laps |
10 December 1983 - Kyalami 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 15 | Porsche 936 C | JR-005 | C | Leopold von Bayern (D)/Siegfried Brunn (D)/Klaus Groeger (ZA) | Joest Racing | 7th | 7th | 15th | 217 laps |