| 16.6.1991 | 24 h Nürburgring | 17 | Omega 3000 24V | Strycek / Engstler / Haider | Opel Team Irmscher | DNF |
| 16.6.1991 | 24 h Nürburgring | 40 | Kadett GSi | Senne / Braun / Thaler / Hass | | DNF |
| 16.6.1991 | 24 h Nürburgring | 41 | Kadett GSi | Berkholz / Eberhardt / Bachmann / Berkholz | | DNF |
| 16.6.1991 | 24 h Nürburgring | 45 | Manta GT/E | Wallraf / Dobersch / Lingen / Gummersbach | Dobersch Gerüstbau | DNF |
| 16.6.1991 | 24 h Nürburgring | 48 | Kadett GSi | Schmidt / Hebler / Gohlke | | 113th |
| 16.6.1991 | 24 h Nürburgring | 50 | Calibra GSi | Höhl / Mölig / Haugg | Kissling Motorsport | 20th |
| 16.6.1991 | 24 h Nürburgring | 51 | Kadett GSi | Praschma / Ilgner / Bartlick / Rotter | | 49th |
| 16.6.1991 | 24 h Nürburgring | 52 | Calibra GSi | Brielmann / Göpfert / Hulverscheid | Kissling Motorsport | 88th |
| 16.6.1991 | 24 h Nürburgring | 53 | Calibra GSi | Kaczmarek / Rittmeier / Viebranz / Classen | Opel Team Dürkop | DNF |
| 16.6.1991 | 24 h Nürburgring | 54 | Manta | Burdenski / Stern / Priller | | DNF |
| 16.6.1991 | 24 h Nürburgring | 57 | Kadett GSi | Boden / Epple / Legat / Frey | Mühlner Motorsport GmbH | 70th |
| 16.6.1991 | 24 h Nürburgring | 59 | Kadett GSi | Baumgarten / Hahne / Werner | Honert Mantzel Team | 25th |
| 16.6.1991 | 24 h Nürburgring | 60 | Kadett GSi | "Krehl" / Baumann / Heinze | | 114th |
| 16.6.1991 | 24 h Nürburgring | 66 | Corsa GSi | Franck / Benoy / Demuth / van Hilten | | 65th |
| 16.6.1991 | 24 h Nürburgring | 71 | Corsa GSi | Jansen / Jonas / Diefenthal | Renngemeinschaft Düren | DNF |
| 16.6.1991 | 24 h Nürburgring | 89 | Corsa | Gassen / Jacobs / Kreuer | Kissling Motorsport | DNF |
| 16.6.1991 | 24 h Nürburgring | 95 | Corsa | Eichenauer / Vier / Abendroth | Scuderia Blau Weiss Kamp-Lintfort | DNF |
| 16.6.1991 | 24 h Nürburgring | 141 | Kadett GSi | Stark / Frenzel / Holzmann | | 80th |
| 16.6.1991 | 24 h Nürburgring | 142 | Kadett GSi | Winter / Tokmakidis | | DNF |
| 16.6.1991 | 24 h Nürburgring | 144 | Kadett GSi | Klaas / Lamberty / Freudenberg | Kreis Opel Sport | 69th |
| 16.6.1991 | 24 h Nürburgring | 145 | Kadett GSi | Hirsch / Schuhey / Helfrich | Kreis Opel Sport | DNF |
| 16.6.1991 | 24 h Nürburgring | 146 | Kadett GSi | Michel / Schäfer / Küber / Wegerer | Kreis Opel Sport | 27th |
| 16.6.1991 | 24 h Nürburgring | 147 | Kadett GSi | Kummle / Kummle / Meier / Bauer | | 29th |
| 16.6.1991 | 24 h Nürburgring | 148 | Kadett GSi | Grassetto / Berti / Rettore | | 87th |
| 16.6.1991 | 24 h Nürburgring | 150 | Kadett GSi | Fritzsche / Fritzsche / Senge / Kudrass | Honert Mantzel Team | 19th |
| 16.6.1991 | 24 h Nürburgring | 151 | Kadett GSi | Briggs / Turner / Kaufmann / Deubel | DMS Team Delta Motorsport | DNF |
| 16.6.1991 | 24 h Nürburgring | 155 | Kadett GSi | Breuer / Breuer / Klenke / Morlog | | 111th |
| 16.6.1991 | 24 h Nürburgring | 156 | Kadett GSi | Kleinschmidt / Abels / Kasterka | | 67th |
| 16.6.1991 | 24 h Nürburgring | 159 | Kadett GSi | Schafberger / Silberkorn / "Vogel" | AMC Deuerling | 94th |
| 16.6.1991 | 24 h Nürburgring | 160 | Kadett GSi | Morawitz / Nettesheim / Schlehecker | | 115th |
| 16.6.1991 | 24 h Nürburgring | 161 | Kadett GSi | Schwertfeger / Kunzendorf / Melzer / Hölzl | | 112th |
| 16.6.1991 | 24 h Nürburgring | 162 | Kadett GSi | Nemecek / Perfler / Pondorfer / Muskovits | PSV Linz Motorsport | 57th |
| 16.6.1991 | 24 h Nürburgring | 163 | Kadett GSi | Lambert / Straßer / Kuppi | Scuderia Starnberger See | 44th |
| 16.6.1991 | 24 h Nürburgring | 164 | Kadett GSi | Rittmeier / Viebranz / Kaczmarek / Classen | PSV Remscheid | 47th |
| 16.6.1991 | 24 h Nürburgring | 165 | Kadett GSi | Kruk / Mond / Ludwig | Motor Sport Club Ranzel | DNF |
| 16.6.1991 | 24 h Nürburgring | 167 | Kadett GSi | Kattenhoefer / Brüggenkamp / Assmuth | Mühlner Motorsport GmbH | 17th |
| 16.6.1991 | 24 h Nürburgring | 168 | Kadett GSi | Heinrich / Ofak / Schellhaas | | 34th |
| 27.7.1991 | 500 km Kemora | 8 | Manta B M88 | Bächi / Wermelin / Larsson | Wärmelin Racing | DNF |
| 4.8.1991 | 24 h Spa | 14 | Kadett GSi 16V | Wagner / Wagner / Chartier | Joe Wagner | 23rd |
| 4.8.1991 | 24 h Spa | 30 | Omega 3000 24v Evolution 500 | Delcourt / Haugg / Moore | Opel Team Emosport | DNF |
| 4.8.1991 | 24 h Spa | 43 | Corsa GSi | "Chavan" / Franck | Franck Lucien | DNQ |
| 4.8.1991 | 24 h Spa | 59 | Kadett GSi 16V | Noirhomme / Galand / Schreurs | Excelsior | 15th |
| 4.8.1991 | 24 h Spa | 60 | Kadett GSi 16V | Joosen / Hardy / Schenk | Excelsior | DNF |
| 4.8.1991 | 24 h Spa | 61 | Calibra 16V | Menage / Schreurs / Semoulin | Excelsior | DNQ |
| 4.8.1991 | 24 h Spa | 65 | Kadett GSi 16V | Wauters / Mondron / Munster | Opel Team Emosport | DNQ |
| 4.8.1991 | 24 h Spa | 66 | Kadett GSi 16V | Thiry / Luxen / Ilien | Opel Team Emosport | 26th |
| 4.8.1991 | 24 h Spa | 72 | Kadett GSi 16V | Wegerer / Guibbert / Kreis | Opel Sport Team Kreis | 24th |
| 4.8.1991 | 24 h Spa | 73 | Kadett GSi 16V | Bruno / de Doncker / Winderickx | | DNS |
| 18.8.1991 | Nordic SS Rudskogen | | Kadett GT/E | Pentti Piispanen | | 6th |
| 17.11.1991 | 6 h Vallelunga | | Kadett GSi 16V | Fulgenzi / Riccitelli / Ceci | | 20th |