PORSCHE RACING HISTORYGünther Steckkönig (D)
1973 : Nürburgring 1000 km - 2nd in class : DRM Mainz-Finthen - 3rd overall
1 April 1973 - Nürburgring 300 Km - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 120 | Porsche 911 Carrera RSR | 911 360 0921 | GT3.0 | Günther Steckkönig (D) | Manfred Weissmann Racing Speyer (D) | DNF | Brakes |
29 April 1973 - DRM Nürburgring Eifelrennen - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 911 Carrera RSR | 911 360 0921 | Div I | Günther Steckkönig (D) | Firma Manfred Weissmann (D) | 4th | 4th | 115th | 6 laps |
13 May 1973 - Targa Florio - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 107 | Porsche 911 Carrera RSR | 911 360 0002 | S3.0 | Günther Steckkönig (D)/Giulio Pucci (I) | Martini Racing | 6th | 4th | 8th | 11 laps - 7:27:30 |
27 May 1973 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera RSR | 911 360 0885 | GT+1.6 | Clemens Schickentanz (D)/Clemens Schickentanz (D)/Günther Steckkönig (D) | Oldenkott Tobacco and Pipes Racing (D) | 12th | 2nd | 25th | 38 laps |
27 May 1973 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 360 0921 | GT+1.6 | Günther Steckkönig (D)/Klaus Fritzinger (D) | M. Weissmann, Vorhangschienen-Fabrik (D) | DNS |
24 June 1973 - Interserie Norisring - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 917/10 | 917/10-001 | Gr. 7 | Günther Steckkönig (D) | Willi Kauhsen Racing Team (D) | 16th | 12th | 5th |
1 July 1973 - DRM Mainz-Finthen - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 911 Carrera RSR | 911 360 0921 | Div.I | Günther Steckkönig (D) | Manfred Weissmann (D) | 3rd | 3rd | 9th | 38 laps |
15 July 1973 - DRM Diepholz - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 911 Carrera RSR | 911 360 0921 | Div.I | Günther Steckkönig (D) | M. Weißmann Vorhangschienen (D) | 5th | 6th | 39 laps |
19 August 1973 - DRM Kassel-Calden - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 911 Carrera RSR | 911 360 0921 | Div.I | Günther Steckkönig (D) | Manfred Weißmann Vorhangschienen | 39 laps |
19 August 1973 - Interserie Misano - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 917/10 | 917/10-001 | Günther Steckkönig (D) | Willi Kauhsen Racing Team (D) | 4th | 2nd | 78 laps |
9 September 1973 - DRM Norisring - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 911 Carrera RSR | 911 360 0921 | Div.I | Günther Steckkönig (D) | Manfred Weissmann (D) | DNF | 1st | 1 lap - Gearbox |
7 October 1973 - DRM Sauerland Hill Climb - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 911 Carrera RSR | 911 360 0921 | Div.I | Günther Steckkönig (D) | Weißmann Vorhangschienen (D) | 6th | 4th | 108th | 4:05.270 |