| 2.5.1999 | All Japan GT Fuji | 21 | | Hitotsuyama / Itou | Hitotsuyama Racing | NC |
| 30.5.1999 | Sugo GT | 21 | | Hitotsuyama / Itou | Hitotsuyama Racing | 27th |
| 31.5.1999 | 2 h 15 min Lime Rock | 6 | #E36/102292 | Cunningham / Simo | Prototype Technology Group | 8th |
| 31.5.1999 | 2 h 15 min Lime Rock | 7 | #E36 STC 95 039 | Cunningham / Van Overbeek | Prototype Technology Group | 9th |
| 31.5.1999 | 2 h 15 min Lime Rock | 10 | #E36 STC 95 002a | Said / Stuck | Prototype Technology Group | 7th |
| 31.5.1999 | 2 h 15 min Lime Rock | 51 | #E36 STC 95 020 | Lewis / Mazzuoccola | Aspen Knolls Racing | 11th |
| 6.6.1999 | 2 h 15 min Mid-Ohio | 6 | #E36/102292 | Cunningham / Simo | Prototype Technology Group, Inc. | DNA |
| 6.6.1999 | 2 h 15 min Mid-Ohio | 7 | #E36 STC 95 039 | Cunningham / Van Overbeek | Prototype Technology Group, Inc. | DNA |
| 6.6.1999 | 2 h 15 min Mid-Ohio | 10 | #E36 STC 95 002a | Said / Stuck | Prototype Technology Group, Inc. | DNA |
| 6.6.1999 | 24 h Nürburgring | 35 | | Henderson / Baker / van Dyck | East Belgian Racing Team-Schröder Motorsport | 114th |
| 6.6.1999 | 24 h Nürburgring | 38 | | Tischner / Thal / Tischner | | 69th |
| 6.6.1999 | 2 h 15 min Mid-Ohio | 51 | #E36 STC 95 020 | Lewis / Pilgrim | Aspen Knolls Racing | 8th |
| 6.6.1999 | 24 h Nürburgring | 55 | | Wolfsgruber / Gehring / Kiesch / Pfrommer | | DNF |
| 6.6.1999 | 24 h Nürburgring | 321 | | Moore / Cox / McLaren | Moore International Motorsport | DNF |
| 6.6.1999 | 24 h Nürburgring | 322 | | Arho / Saläne / Salmenautio / Santavirta | Moore International Motorsport | 72nd |
| 27.6.1999 | 2 h 45 min Mosport | 6 | #E36/102292 | Simo / Cunningham | Prototype Technology Group | 29th |
| 27.6.1999 | 2 h 45 min Mosport | 7 | #E36 STC 95 039 | Cunningham / Van Overbeek | Prototype Technology Group | 19th |
| 27.6.1999 | 2 h 45 min Mosport | 10 | #E36 STC 95 002a | Stuck / Menzel | Prototype Technology Group | 17th |
| 10.7.1999 | 250 km Mine | 21 | | Hitotsuyama / Itou | Hitotsuyama Racing | 20th |
| 25.7.1999 | 2 h 45 min Sears Point | 6 | #E36/102292 | Simo / Cunningham | Prototype Technology Group | 36th |
| 25.7.1999 | 2 h 45 min Sears Point | 7 | #E36 STC 95 039 | Menzel | Prototype Technology Group | 42nd |
| 25.7.1999 | 2 h 45 min Sears Point | 9 | #E36/2-02 | Said / Stuck | Prototype Technology Group | 22nd |
| 25.7.1999 | 2 h 45 min Sears Point | 10 | #E36 STC 95 002a | Law / Van Overbeek | Prototype Technology Group | 26th |
| 1.8.1999 | 2 h 45 min Portland | 6 | #E36/102292 | Simo / Cunningham | Prototype Technology Group | 23rd |
| 1.8.1999 | 2 h 45 min Portland | 7 | #E36 STC 95 039 | Menzel / Cunningham | Prototype Technology Group | 19th |
| 1.8.1999 | 2 h 45 min Portland | 9 | #E36/2-02 | Stuck | Prototype Technology Group | 41st |
| 1.8.1999 | 2 h 45 min Portland | 10 | #E36 STC 95 002a | Law / Van Overbeek | Prototype Technology Group | 20th |
| 7.8.1999 | Special GT Cup Fuji | 21 | | Hitotsuyama / Itou | Hitotsuyama Racing | 26th |
| 5.9.1999 | 24 h Zolder | 44 | | Gabriël / Van Cleemputte / Verpoort | Racing for Fun II | DNF |
| 5.9.1999 | 24 h Zolder | 95 | | Moore / Cox / McLaren | | DNF |
| 18.9.1999 | Petit Le Mans | 6 | #E36/2-0E | Said / Stuck | Prototype Technology Group | 16th |
| 18.9.1999 | Petit Le Mans | 7 | #E36 STC 95 039 | Cunningham / Simo / Cunningham | Prototype Technology Group | 18th |
| 18.9.1999 | Petit Le Mans | 10 | #E36 STC 95 002a | Law / Van Overbeek / Simo | Prototype Technology Group | 19th |
| 25.9.1999 | GT Aida | 21 | | Hitotsuyama / Itou | Hitotsuyama Racing | 30th |
| 26.9.1999 | 3 h Homestead | 12 | #E36/100192 | Johnson / Pilgrim / Neuman | Bell Motorsport | 11th |
| 26.9.1999 | 3 h Homestead | 40 | #E36 STC 95 020 | Lewis / Mazzuoccola | Aspen Knolls Racing | 12th |
| 26.9.1999 | Belcar Spa RF | 44 | | Cauwberghs / Gabriël | Racing for Fun II | DNA |
| 3.10.1999 | 3 h Watkins Glen | 12 | #E36/100192 | Neuman / Johnson / Pilgrim | Bell Motorsport | DNA |
| 3.10.1999 | 3 h Watkins Glen | 40 | #E36 STC 95 020 | Mazzuoccola / Lewis | Aspen Knolls Racing | DNA |
| 10.10.1999 | 2 h 45 min Laguna Seca | 6 | #E36/2-0E | Stuck / Said / Cunningham | Prototype Technology Group | 26th |
| 10.10.1999 | 2 h 45 min Laguna Seca | 7 | #E36 STC 95 039 | Simo | Prototype Technology Group | 37th |
| 10.10.1999 | 2 h 45 min Laguna Seca | 10 | #E36 STC 95 002a | Cunningham / Van Overbeek | Prototype Technology Group | 30th |
| 17.10.1999 | Belcar Zolder BM | 44 | | Gabriël / Verpoort | Racing for Fun II | DNS |
| 17.10.1999 | Belcar Zolder BM | 95 | | Moore / Cox | | DNA |
| 23.10.1999 | Motegi GT | 21 | | Hitotsuyama / Itou | Hitotsuyama Racing | DNA |
| 7.11.1999 | 2 h 45 min Las Vegas | 6 | #E36/2-0E | Stuck / Van Overbeek | Prototype Technology Group | 17th |
| 7.11.1999 | 2 h 45 min Las Vegas | 7 | #E36 STC 95 039 | Cunningham / Cunningham | Prototype Technology Group | 15th |
| 7.11.1999 | 2 h 45 min Las Vegas | 10 | #E36 STC 95 002a | Simo / Said | Prototype Technology Group | 18th |