PORSCHE RACING HISTORYRolf Stommelen (D)
1980 : Daytona 24 Hours - 1st overall : DRM Zolder Bergischer Löwe - 1st overall : Nürburgring 1000 km - 1st overall : DRM Spa - 3rd overall
3 February 1980 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 935 J | 930 890 0014 | GTX | Reinhold Jöst (D)/Rolf Stommelen (D)/Volkert Merl (D) | Liqui Moly (D) | 1st | 1st | 2nd | 715 laps |
23 March 1980 - DRM Zolder Bergischer Löwe - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 J | 000 00016 | Gr.5 | Rolf Stommelen (D) | Liqui Moly équipe (D) | 1st | 1st | 2nd | 24 laps |
25 May 1980 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 31 | Porsche 908/03 | 908/03-008 | S+2.0 | Rolf Stommelen (D)/Jürgen Barth (D) | Liqui Moly Equipe (D) | 1st | 1st | 1st | 44 laps |
1 June 1980 - DRM Spa - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 J | 000 00016 | Gr.5 | Rolf Stommelen (D) | Liqui Moly Equipe (D) | 3rd | 3rd | 2nd | 15 laps |
15 June 1980 - Le Mans 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 42 | Porsche 935 K3 | 930 670 0163 | Gr.5 | Rolf Stommelen (D)/Axel Plankenhorn (D)/Tetsu Ikuzawa (J) | Gozzy Kremer Racing (D) | DNF | 3rd | 167 laps - Head Gasket |