| 11.1.1998 | Daytona Test | 6 | M3 E36 | Said / Simo / Auberlen / Valentine / Bentley / Papadopoulos | Prototype Technology Group, Inc. | 28th |
| 11.1.1998 | Daytona Test | 7 | M3 E36 | Said / Papadopoulos / Valentine / Auberlen / Donohue | Prototype Technology Group, Inc. | 25th |
| 11.1.1998 | Daytona Test | 12 | M3 | Neuman / Pilgrim / Adam / Borcheller | Bell Motorsports | DNA |
| 11.1.1998 | Daytona Test | 54 | M3 E36 | Neuman / Pilgrim / Hernandez / Borcheller / Adam | Bell Motorsports | 27th |
| 1.2.1998 | 24 h Daytona | 6 | M3 E36 | Simo / Cunningham / Quester | Prototype Technology Group | 67th |
| 1.2.1998 | 24 h Daytona | 7 | M3 E36 | Bentley / Delano / Petery / Hill | Prototype Technology Group Inc. | 16th |
| 1.2.1998 | 24 h Daytona | 10 | M3 E36 | Auberlen / Duez / Said / Cunningham | Prototype Technology Group | 6th |
| 1.2.1998 | 24 h Daytona | 54 | M3 E36 | Hayner / Taleb / Neuman / Borcheller | Bell Motorsports | 33rd |
| 21.3.1998 | 300 km Suzuka | 21 | M3 E36 | Hitotsuyama / Kato | Hitotsuyama Racing | DNF |
| 22.3.1998 | 12 h Sebring | 1 | M3 E36 | Carter / Petery / Amati | Prototype Technology Group | 32nd |
| 22.3.1998 | 12 h Sebring | 6 | M3 E36 | Cunningham / Bentley / Simo | Prototype Technology Group | 12th |
| 22.3.1998 | 12 h Sebring | 10 | M3 E36 | Auberlen / Said | Prototype Technology Group | 11th |
| 22.3.1998 | 12 h Sebring | 54 | M3 E36 | de Quesada / Borcheller / Neuman / Varde | Bell Motorsports | 38th |
| 19.4.1998 | Belcar Zolder NRF | 26 | M3 | Beckers / Stevens | Cassiers Serge | 22nd |
| 19.4.1998 | Belcar Zolder NRF | 32 | M3 | Cuyvers / Beliën | BMW Beliën | 13th |
| 19.4.1998 | Belcar Zolder NRF | 33 | Compact | Geboers / Van Roey | EG Racing | 12th |
| 19.4.1998 | Belcar Zolder NRF | 34 | M3 Compact | van Kouwen / Van Elderen | Compact Racing | 23rd |
| 19.4.1998 | Belcar Zolder NRF | 35 | M3 | Kieselmann / Kolczewski | Allruts Jörg | DNS |
| 19.4.1998 | Belcar Zolder NRF | 36 | M3 | Brinkmann / Jaenen | Team Charly | 44th |
| 19.4.1998 | Belcar Zolder NRF | 37 | M3 GTR | Henkens / Gemoets | Haes Racing | 21st |
| 19.4.1998 | Belcar Zolder NRF | 42 | M3 | Hubert / Dewinter | Rahier Luc | 14th |
| 19.4.1998 | Belcar Zolder NRF | 43 | M5 E34 | Carlier / Leyssens | Muyldermans Ann | 37th |
| 19.4.1998 | Belcar Zolder NRF | 50 | M3 | Van Lindt / Bertels | Deguise Johnny | 36th |
| 19.4.1998 | Belcar Zolder NRF | 60 | M3 | de Wolf / Lenaerts | Geerts Roel | 30th |
| 19.4.1998 | Belcar Zolder NRF | 61 | Fisa 2L | Kenis / De Veirman | Jacobs Wim | 18th |
| 19.4.1998 | Belcar Zolder NRF | 68 | 320i | Meijers / Meijers | Meijers Racing Team | 31st |
| 19.4.1998 | Belcar Zolder NRF | 83 | M3 | Qvick / Vermeiren | Qvick Yves | 38th |
| 26.4.1998 | 3 h 45 min Las Vegas | 1 | M3 E36 | Cunningham / Bentley | Prototype Technology Group | 6th |
| 26.4.1998 | 3 h 45 min Las Vegas | 6 | M3 E36 | Pilgrim / Said / Auberlen | Prototype Technology Group | 4th |
| 26.4.1998 | 3 h 45 min Las Vegas | 10 | M3 E36 | Auberlen / Simo / Duez | Prototype Technology Group | 5th |
| 2.5.1998 | All Japan GT Fuji | 21 | M3 E36 | Hitotsuyama / Kinoshita | Hitotsuyama Racing | NC |
| 3.5.1998 | Prequalifying Le Mans | 1 | V12 LM | Kristensen / Soper | Team BMW Motorsport | 20th |
| 3.5.1998 | Prequalifying Le Mans | 2 | V12 LM | Martini / Cecotto | Team BMW Motorsport | 11th |
| 3.5.1998 | Belcar Spa SFD | 26 | M3 | Beckers / Stevens | Cassiers Serge | 20th |
| 3.5.1998 | Belcar Spa SFD | 32 | M3 | Cuyvers / Beliën | BMW Beliën | 11th |
| 3.5.1998 | Belcar Spa SFD | 33 | Compact | Geboers / Van Roey | EG Racing | 16th |
| 3.5.1998 | Belcar Spa SFD | 34 | M3 Compact | van Kouwen / Van Elderen | Compact Racing | 34th |
| 3.5.1998 | Belcar Spa SFD | 36 | M3 | Brinkmann / Bartlick | Team Charly | 33rd |
| 3.5.1998 | Belcar Spa SFD | 37 | M3 GTR | Henkens / Gemoets | Haes Racing | 44th |
| 3.5.1998 | Belcar Spa SFD | 42 | M3 | Hubert / Dewinter | Rahier Luc | DNS |
| 3.5.1998 | Belcar Spa SFD | 43 | M5 E34 | Carlier / Leyssens | | 30th |
| 3.5.1998 | Belcar Spa SFD | 44 | M3 | van der Kolk / de Bode | | 26th |
| 3.5.1998 | Belcar Spa SFD | 50 | M3 | Van Lindt / Depondt | Deguise Johnny | DNS |
| 3.5.1998 | Belcar Spa SFD | 60 | M3 | de Wolf / Michiels | | 19th |
| 3.5.1998 | Belcar Spa SFD | 61 | Fisa 2L | Kenis / De Veirman | Jacobs Wim | 12th |
| 3.5.1998 | Belcar Spa SFD | 68 | 320i | Meijers / Meijers | Meijers Racing Team | 24th |
| 3.5.1998 | Belcar Spa SFD | 83 | M3 | Qvick / Vermeiren | | 36th |
| 10.5.1998 | CDN GT Mosport BARC Spring | 117 | 325i Turbo | Sandy Macnie | | 20th |
| 17.5.1998 | 2 h 15 min Homestead | 1 | M3 E36 | Bentley / Duez | Prototype Technology Group | 7th |
| 17.5.1998 | 2 h 15 min Homestead | 6 | M3 E36 | Said / Simo / Auberlen | Prototype Technology Group | DNA |
| 17.5.1998 | 2 h 15 min Homestead | 10 | M3 E36 | Said / Simo | Prototype Technology Group | 8th |
| 17.5.1998 | 2 h 15 min Homestead | 54 | M3 E36 | Newman / Pilgrim / Borcheller | Bell Motorsports | 15th |
| 24.5.1998 | CDN GT Mosport BEMC Spring | 117 | 325i Turbo | Sandy Macnie | | 25th |
| 25.5.1998 | 1 h 45 min Lime Rock [GT] | 1 | M3 E36 | Bentley / Cunningham | Prototype Technology Group | 5th |
| 25.5.1998 | 1 h 45 min Lime Rock [GT] | 6 | M3 E36 | Said / Duez | Prototype Technology Group | 4th |
| 25.5.1998 | 1 h 45 min Lime Rock [GT] | 10 | M3 E36 | Auberlen / Simo | Prototype Technology Group | 7th |
| 7.6.1998 | 24 h Le Mans | 1 | V12 LM | Stuck / Kristensen / Soper | Team BMW Motorsport | DNF |
| 7.6.1998 | 24 h Le Mans | 2 | V12 LM | Martini / Cecotto / Winkelhock | Team BMW Motorsport | DNF |
| 14.6.1998 | 2 h 30 min Mid-Ohio | 1 | M3 E36 | Bentley / Simo | Prototype Technology Group | 11th |
| 14.6.1998 | 2 h 30 min Mid-Ohio | 10 | M3 E36 | Auberlen / Said | Prototype Technology Group | 9th |
| 14.6.1998 | Belcar Spa PT | 12 | M3 | Dierckx / Lievens | | 16th |
| 14.6.1998 | Belcar Spa PT | 26 | M3 | Beckers / Stevens | Cassiers Serge | 20th |
| 14.6.1998 | Belcar Spa PT | 32 | M3 | Cuyvers / Beliën | BMW Beliën | 15th |
| 14.6.1998 | Belcar Spa PT | 33 | Compact | Geboers / Van Roey | EG Racing | 9th |
| 14.6.1998 | Belcar Spa PT | 34 | M3 Compact | van Kouwen / Van Elderen | Compact Racing | 21st |
| 14.6.1998 | Belcar Spa PT | 37 | M3 GTR | Henkens / Gemoets | Haes Racing | 18th |
| 14.6.1998 | Belcar Spa PT | 42 | M3 | Hubert / Dewinter | Rahier Luc | 26th |
| 14.6.1998 | Belcar Spa PT | 43 | M5 E34 | Carlier / Leyssens | | 28th |
| 14.6.1998 | Belcar Spa PT | 44 | M3 | van der Kolk / de Bode | | 14th |
| 14.6.1998 | 2 h 30 min Mid-Ohio | 54 | M3 E36 | Newman / Pilgrim / Borcheller | Bell Motorsports | DNA |
| 14.6.1998 | Belcar Spa PT | 60 | M3 | de Wolf / Lenaerts | | 46th |
| 14.6.1998 | Belcar Spa PT | 61 | Fisa 2L | Kenis / De Veirman | Jacobs Wim | 50th |
| 14.6.1998 | Belcar Spa PT | 68 | 320i | Meijers / Meijers | Meijers Racing Team | 24th |
| 14.6.1998 | Belcar Spa PT | 83 | M3 | Qvick / Vermeiren | | 36th |
| 1998 | Alastaro | | M1 | Olli Virtanen | | -/6th |
| 1998 | Alastaro | | M3 | Frank Valle | | -/DNF |