| 21.6.1998 | 3 h 45 min Road Atlanta | 1 | #E36 STC 95 020 | Cunningham / Bentley | Prototype Technology Group | 14th |
| 21.6.1998 | 3 h 45 min Road Atlanta | 6 | #E36/102292 | Said / Simo / Duez | Prototype Technology Group | 10th |
| 21.6.1998 | 3 h 45 min Road Atlanta | 10 | #E36 STC 95 002 | Simo / Auberlen | Prototype Technology Group | 13th |
| 21.6.1998 | 2 h Zeltweg | | | Zadra / Zadra | | 9th |
| 21.6.1998 | 2 h Zeltweg | | | Meloni / Meloni | | 6th |
| 21.6.1998 | 2 h Zeltweg | | | Benedetti / Bagnasco | | 10th |
| 21.6.1998 | 2 h Zeltweg | | | Cappellari / Duller | | 15th |
| 21.6.1998 | 2 h Zeltweg | | | Alexander / Quester | | 17th |
| 21.6.1998 | 2 h Zeltweg | | | Del Castello / Marini | | 18th |
| 27.6.1998 | Hi-Land GT Sendai | 21 | | Hitotsuyama / Katou | Hitotsuyama Racing | 14th |
| 28.6.1998 | 1 h 45 min Minneapolis | 6 | #E36/102292 | Cunningham / Simo | Prototype Technology Group | 10th |
| 28.6.1998 | 1 h 45 min Minneapolis | 10 | #E36 STC 95 002 | Bentley / Simo | Prototype Technology Group | 9th |
| 28.6.1998 | SM GTR Anderstorp | 86 | | Sten Jarl | Sten Jarl | 5th/5th |
| 8.8.1998 | Special GT Cup Fuji | 21 | | Hitotsuyama / Katou | Hitotsuyama Racing | 19th |
| 9.8.1998 | 2 h 45 min Mosport | 1 | #E36 STC 95 020 | Bentley / Cunningham | Prototype Technology Group | 10th |
| 9.8.1998 | 2 h 45 min Mosport | 6 | #E36/102292 | Bentley / Duez | Prototype Technology Group | 11th |
| 9.8.1998 | 2 h 45 min Mosport | 10 | #E36 STC 95 002 | Auberlen / Simo | Prototype Technology Group | 9th |
| 9.8.1998 | SM GTR Falkenberg | 86 | | Sten Jarl | Sten Jarl | 15th/DNS |
| 16.8.1998 | Belcar Assen | 12 | | Dierckx / Goeminne | | 25th |
| 16.8.1998 | Belcar Assen | 26 | | Beckers / Stevens | Cassiers Serge | 21st |
| 16.8.1998 | Belcar Assen | 32 | | Cuyvers / Beliën | BMW Beliën | 6th |
| 16.8.1998 | Belcar Assen | 34 | | van Kouwen / Van Elderen | Compact Racing | 18th |
| 16.8.1998 | Belcar Assen | 37 | | Henkens / Gemoets | Haes Racing | 19th |
| 16.8.1998 | Belcar Assen | 42 | | Hubert / Dewinter | Rahier Luc | 16th |
| 16.8.1998 | Belcar Assen | 60 | | de Wolf / Kenis | | raced |
| 16.8.1998 | Belcar Assen | 61 | | Van der Kolk / Ploeg | | 17th |
| 23.8.1998 | 6 h Watkins Glen | 6 | #E36/102292 | Bentley / Duez / Cunningham | Prototype Technology Group | 15th |
| 23.8.1998 | 6 h Watkins Glen | 10 | #E36 STC 95 002 | Auberlen / Simo | Prototype Technology Group | 26th |
| 30.8.1998 | CDN GT Mosport | 199 | | Dino Coliviras | | 26th |
| 6.9.1998 | 24 h Zolder | 12 | | Dierckx / Lievens / Goeminne | | 13th |
| 6.9.1998 | 24 h Zolder | 26 | | Beckers / Stevens / Lenaers | Cassiers Serge | 28th |
| 6.9.1998 | 24 h Zolder | 27 | | Geerts / Mattheus / Van Asch | | 31st |
| 6.9.1998 | 24 h Zolder | 32 | | Beliën / Kenis / Verellen | BMW Beliën | 9th |
| 6.9.1998 | 24 h Zolder | 34 | | van Kouwen / Van Elderen / Roelands | Compact Racing | 10th |
| 6.9.1998 | 24 h Zolder | 36 | | Van de Velde / Cleyssens / Jaenen | | raced |
| 6.9.1998 | 24 h Zolder | 37 | | Henkens / Gemoets / Van Laere | Haes Racing | 26th |
| 6.9.1998 | 24 h Zolder | 42 | | Hubert / Dewinter / Duez | Rahier Luc | raced |
| 6.9.1998 | 24 h Zolder | 60 | | Depondt / Lenaerts / Michiels | | 21st |
| 6.9.1998 | 24 h Zolder | 61 | | Van der Kolk / Vermeulen / van Hool | | raced |
| 6.9.1998 | 24 h Zolder | 74 | | Gabriël / Daelemans / van Looy | | 17th |
| 6.9.1998 | SM GTR Knutstorp | 86 | | Sten Jarl | Jarl Bilservice AB | 8th/9th |
| 6.9.1998 | 24 h Zolder | 97 | | Stoeltie / Deelstra / Bus | | raced |
| 12.9.1998 | Motegi GT | 21 | | Hitotsuyama / Katou | Hitotsuyama Racing | 14th |
| 19.9.1998 | 3 h Sebring | 6 | #E36/102292 | Cunningham / Bentley | Prototype Technology Group | 13th |
| 19.9.1998 | 3 h Sebring | 10 | #E36 STC 95 002 | Auberlen / Simo | Prototype Technology Group | 14th |
| 19.9.1998 | 3 h Sebring | 54 | | Neuman / Pilgrim | Bell Motorsports | 9th |
| 20.9.1998 | Belcar Zolder TSP | 12 | | Dierckx / Lievens | | 21st |
| 20.9.1998 | Belcar Zolder TSP | 26 | | Beckers / Stevens | Cassiers Serge | 30th |
| 20.9.1998 | Belcar Zolder TSP | 32 | | Cuyvers / Beliën | BMW Beliën | 22nd |
| 20.9.1998 | Belcar Zolder TSP | 34 | | van Kouwen / Van Elderen | Compact Racing | 19th |
| 20.9.1998 | Belcar Zolder TSP | 36 | | Jaenen / Bartlick | Team Charly | 26th |
| 20.9.1998 | Belcar Zolder TSP | 37 | | Henkens / Gemoets | Haes Racing | 14th |
| 20.9.1998 | Belcar Zolder TSP | 42 | | Hubert / Dewinter | Rahier Luc | 9th |
| 20.9.1998 | Belcar Zolder TSP | 60 | | de Wolf / Verellen | | 20th |
| 20.9.1998 | Belcar Zolder TSP | 61 | | Van der Kolk / Vermeulen | | 11th |
| 27.9.1998 | SM GTR Mantorp Park | 86 | | Sten Jarl | Sten Jarl | 11th/5th |
| 10.10.1998 | Petit Le Mans | 1 | #E36 STC 95 039 | Cunningham / Simo / Borcheller / Quiros | Prototype Technology Group | 16th |
| 10.10.1998 | Petit Le Mans | 6 | #E36/102292 | Bentley / Law / Shafer / Besnard | Prototype Technology Group | 10th |
| 10.10.1998 | Petit Le Mans | 10 | #E36 STC 95 002 | Auberlen / Simo / Pilgrim | Prototype Technology Group | 17th |
| 10.10.1998 | Petit Le Mans | 12 | #E36 STC 95 020 | Halsmer / Pobst | T. C. Kline | 23rd |
| 10.10.1998 | 250 km Mine | 21 | | Hitotsuyama / Katou | Hitotsuyama Racing | 19th |
| 11.10.1998 | Belcar Zolder BM | 12 | | Dierckx / Lievens | | 31st |
| 11.10.1998 | Belcar Zolder BM | 24 | | Van Laere / Vangenechten | | 35th |
| 11.10.1998 | Belcar Zolder BM | 26 | | Beckers / Stevens | Cassiers Serge | 29th |
| 11.10.1998 | Belcar Zolder BM | 32 | | Cuyvers / Beliën | BMW Beliën | 15th |
| 11.10.1998 | Belcar Zolder BM | 34 | | van Kouwen / Van Elderen | Compact Racing | 26th |
| 11.10.1998 | Belcar Zolder BM | 36 | | Brinkmann / Jaenen | Team Charly | 46th |
| 11.10.1998 | Belcar Zolder BM | 37 | | Henkens / Gemoets | Haes Racing | 24th |
| 11.10.1998 | Belcar Zolder BM | 42 | | Hubert / Dewinter | Rahier Luc | 20th |
| 11.10.1998 | Belcar Zolder BM | 61 | | Van der Kolk / Kenis | | 43rd |
| 24.10.1998 | Sugo GT | 21 | | Hitotsuyama / Katou | Hitotsuyama Racing | 14th |
| 25.10.1998 | 2 h 30 min Laguna Seca | 1 | #E36 STC 95 020 | Auberlen / Cunningham | Prototype Technology Group | 17th |
| 25.10.1998 | 2 h 30 min Laguna Seca | 6 | #E36/102292 | Cunningham / Simo | Prototype Technology Group | 12th |
| 25.10.1998 | 2 h 30 min Laguna Seca | 10 | #E36 STC 95 002a | Bentley | Prototype Technology Group | 27th |