PORSCHE RACING HISTORYSiegfried Brunn (D)
1986
20 April 1986 - Monza 360 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 63 | Porsche 936 C | JR-005 | C1 | Siegfried Brunn (D)/Ernst Schuster (D) | Ernst Schuster (D) | 12th | 11th | 16th | 56 laps |
4 May 1986 - Silverstone 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 63 | Porsche 936 C | JR-005 | C1 | Siegfried Brunn (D)/Ernst Schuster (D) | Ernst Schuster (D) | 17th | 13th | 19th | 180 laps |
1 June 1986 - Le Mans 24 Hours - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 63 | Porsche 936 C | JR-005 | C1 | Siegfried Brunn (D)/Ernst Schuster (D)/Rudi Seher (D) | Ernst Schuster (D) | 6th | 6th | 21st | 344 laps |
24 August 1986 - Nürburgring 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 63 | Porsche 936 C | JR-005 | C1 | Ernst Schuster (D)/Rudi Seher (D)/Siegfried Brunn (D) | Ernst Schuster (D) | DNF | 22nd | 4 laps - Accident |