PORSCHE RACING HISTORY906
1976
29 August 1976 - Interserie Hockenheim Preis der Nationen - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 15 | Porsche 906 Spyder | 906-155 | Div.I | Karl-Adolf Kneip (D) | Karl-Adolf Kneip (D) | 20th | 10th |
10 October 1976 - Interserie Nürburgring - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 906 Spyder | 906-155 | Div.I | Karl-Adolf Kneip (D) | Karl-Adolf Kneip (D) | 10th | 4th | 61 laps |
24 October 1976 - Interserie Mainz-Finthen - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 906 Spyder | 906-155 | Div.I | Karl-Adolf Kneip (D) | Karl-Adolf Kneip (D) |
31 October 1976 - Interserie Hockenheim Südwestpokal - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 906 Spyder | 906-155 | Div.I | Karl-Adolf Kneip (D) | Karl-Adolf Kneip (D) | 15th | 8th |