| 12.3.1978 | 500 km Brands Hatch | 31 | | Kindlmann / Linder | | DNF |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 56 | | Albrecht Krebs | Team GS-Tuning Autohaus G. Schneider | 7th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 57 | #E21-R1-08 | Markus Höttinger | Team GS-Tuning Fruit of the Loom Autohaus G. Schneider | 6th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 58 | | Neve | BMW - Belgium | 10th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 61 | | Walter Brun | Heidegger-Buess-Team | 8th |
| 12.3.1978 | 500 km Brands Hatch | | | Lang / Strok | | DNF |
| 18.3.1978 | 12 h Sebring | 2 | #E21-R1-03 => E21-001 | Hobbs / Minter / Klausler | McLaren North America | 38th |
| 19.3.1978 | 6 h Mugello | 1 | | Winkelhock / Giacomelli | BMW Motorsport | DNS |
| 19.3.1978 | 6 h Mugello | 2 | | Surer / Kottulinsky | BMW Schweiz | DNF |
| 19.3.1978 | 6 h Mugello | 23 | | Emanuelsson / Olofsson | BMW Sweden | 6th |
| 19.3.1978 | 6 h Mugello | 31 | | Bell / Quester | Faltz Preparation | 3rd |
| 19.3.1978 | 6 h Mugello | 32 | | Grohs / Neve | BMW Belgium | 10th |
| 19.3.1978 | 6 h Mugello | 34 | | Brandenberger / Brun | Heidegger | DNA |
| 19.3.1978 | 6 h Mugello | 36 | | Cheever / Francia | BMW Italia - Osella | DNF |
| 26.3.1978 | 4 h Monza | 24 | | König / Weltrowski | Eggenberger Motorsport | 2nd |
| 26.3.1978 | 4 h Monza | 25 | | | | raced |
| 26.3.1978 | 4 h Monza | 45 | | | | raced |
| 2.4.1978 | DRM Nürburgring 300 | 50 | #E21-R1-23 | Manfred Winkelhock | Würth-HAT | 5th |
| 2.4.1978 | DRM Nürburgring 300 | 55 | #E21-R1-10 | Harald Ertl | Sachs-Sporting | 1st |
| 2.4.1978 | DRM Nürburgring 300 | 56 | | Albrecht Krebs | Team GS-Tuning, - Autohaus Gerhard Schneider | 6th |
| 2.4.1978 | DRM Nürburgring 300 | 57 | #E21-R1-08 | Markus Höttinger | Team GS-Tuning, - Fruit of the Loom/Autohaus G. Schneider | 3rd |
| 2.4.1978 | DRM Nürburgring 300 | 58 | | Harald Grohs | BMW-Faltz-Essen | DNA |
| 2.4.1978 | DRM Nürburgring 300 | 59 | | Karl-Heinz Becker | Karl-Heinz Becker | DNA |
| 2.4.1978 | DRM Nürburgring 300 | 61 | | Walter Brun | Team Heidegger | 7th |
| 2.4.1978 | DRM Nürburgring 300 | 71 | | Wilfried Schmitz | MSC Wahlscheid | DNA |
| 9.4.1978 | ETCC Mugello | 14 | | König / Weltrowski | Eggenberger Motorsport | DNF |
| 16.4.1978 | 100 mile Road Atlanta | 2 | #E21-002 | David Hobbs | McLaren North America | 29th |
| 16.4.1978 | Road Atlanta [GTU] | 6 | | Carlos Garza | Preston Miller Racing | 16th |
| 16.4.1978 | 6 h Dijon | 20 | | Grohs / Neve | BMW Belgium | 13th |
| 16.4.1978 | 6 h Dijon | 21 | | Francia / Cheever | BMW Italia - Osella | 3rd |
| 16.4.1978 | 6 h Dijon | 23 | | Emanuelsson / Carlsson | BMW Sweden | 4th |
| 16.4.1978 | 6 h Dijon | 24 | | Surer / Kottulinsky | BMW Schweiz | 7th |
| 16.4.1978 | 6 h Dijon | 25 | | Walkinshaw / Quester | Faltz Preparation | DNF |
| 16.4.1978 | SM Monza | | | Franz Albert | | ?th |
| 30.4.1978 | 100 mile Laguna Seca | 2 | #E21-002 | David Hobbs | McLaren North America | 4th |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 17 | #E21-R4-32 => E21-004 | Ronnie Peterson | BMW-Motorsport GmbH | DNS |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 50 | #E21-R1-23 | Manfred Winkelhock | Würth-HAT | 18th |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 51 | #E21-R1-7 | Helmut Bross | Scuderia Lang Verpackungen | 8th |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 55 | #E21-R1-10 | Harald Ertl | Sachs-Sporting | 5th |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 56 | | Albrecht Krebs | Team-GS-Tuning, Autohaus Gerhard Schneider | DNF |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 57 | #E21-R1-08 | Markus Höttinger | Team-GS-Tuning, Fruit of the Loom / Autohaus Gerhard Schneider | 1st |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 58 | | Harald Grohs | BMW-Faltz | DNS |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 59 | | Karl-Heinz Becker | Karl-Heinz Becker | 21st |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 61 | | Walter Brun | Team-Heidegger Triesen | 6th |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 62 | | Bo Emanuelsson | BMW-Schweden | 7th |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 63 | | Eddie Cheever | Osella-BMW-Italia | 2nd |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 65 | | Dieter Quester | BMW-Faltz | DNS |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 66 | | | BMW-Faltz | DNA |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 77 | | Lothar Wagner | Lothar Wagner | 10th |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 91 | | | Auto-Budde-Racing | DNA |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 96 | | Wilfried Vogt | Cavallo-Matras | DNF |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 99 | | Kurt König | Eggenberger Motorsport | DNA |
| 30.4.1978 | DRM Nürburgring Eifelrennen | 104 | | Horst Dietz | Horst-W. Dietz | DNA |
| 30.4.1978 | SM Hockenheim | | | Walter Nussbaumer | | raced |
| 7.5.1978 | 100 mile Hallett | 2 | #E21-002 | David Hobbs | McLaren North America | 1st |
| 14.5.1978 | 6 h Silverstone | 38 | #E21-R4-32 => E21-004 | Peterson / Stuck | BMW Motorsport GmbH | DNF |
| 14.5.1978 | 6 h Silverstone | 51 | | Emanuelsson / Carlsson | BMW Sweden/Bo Emanuelson Racing | DNF |
| 14.5.1978 | 6 h Silverstone | 52 | | Quester | BMW Faltz Essen | DNS |
| 14.5.1978 | 6 h Silverstone | 53 | | Joosen / Grohs | BMW Belgium | 3rd |
| 14.5.1978 | 6 h Silverstone | 54 | | Kottulinsky / Hotz | BMW Schweiz | 4th |
| 14.5.1978 | 6 h Silverstone | 55 | | Francia / Grano | BMW Italia Osella | DNF |
| 14.5.1978 | SM Zeltweg | | | Walter Brun | | ?th |
| 21.5.1978 | DRM Avus | 50 | #E21-R1-23 | Manfred Winkelhock | Würth-HAT | DNF |
| 21.5.1978 | DRM Avus | 55 | #E21-R1-10 | Harald Ertl | Sachs-Sporting | 1st |
| 21.5.1978 | DRM Avus | 56 | | Albrecht Krebs | Team-GS-Tuning, Autohaus G. Schneider | DNS |
| 21.5.1978 | DRM Avus | 57 | #E21-R1-08 | Markus Höttinger | Team GS-Tuning - Fruit of the Loom/Autohaus Gerhard Schneider | 3rd |
| 21.5.1978 | DRM Avus | 59 | | Karl-Heinz Becker | Karl-Heinz Becker | DNA |
| 21.5.1978 | DRM Avus | 61 | | Walter Brun | Team Heidegger | DNF |
| 21.5.1978 | DRM Avus | 70 | | Walter Nussbaumer | Ecurie Basilisk | DNF |
| 21.5.1978 | DRM Avus | 73 | | Kurt König | Eggenberger Team | 8th |
| 21.5.1978 | DRM Avus | 76 | #E21-R1-17 | Gustav Fischer | Gustav Fischer | 7th |
| 28.5.1978 | 1000 km Nürburgring | 15 | #E21-R1-16 | Peterson / Stuck | BMW Motorsport GmbH | DNA |
| 28.5.1978 | 1000 km Nürburgring | 25 | | Brambilla / Francia | BMW Italia - Osella | 12th |
| 28.5.1978 | 1000 km Nürburgring | 26 | | Grohs / Neve | BMW Belgium | 9th |
| 28.5.1978 | 1000 km Nürburgring | 27 | | Kottulinsky / Hotz | BMW Schweiz | DNF |
| 28.5.1978 | 1000 km Nürburgring | 28 | | Olofsson / Emanuelsson | BMW Sweden | DNF |
| 28.5.1978 | 1000 km Nürburgring | 29 | | Peterson / Quester | BMW-Faltz | 7th |
| 28.5.1978 | 1000 km Nürburgring | 30 | | Wagner / Denzel | Wagner/Denzel | DNF |
| 28.5.1978 | 1000 km Nürburgring | 34 | | Höttinger / Stuck | BMW-Faltz | 6th |
| 28.5.1978 | 1000 km Nürburgring | 92 | | Prüser / Sieben | "EPN" Automobilsport | DNF |
| 28.5.1978 | 1000 km Nürburgring | 96 | | König / Weltrowski | Eggenberger-Motorsport | 20th |
| 28.5.1978 | 1000 km Nürburgring | 99 | | Schmitz / Hegels | Rhein-Ruhr-Racing-Team | DNA |
| 29.5.1978 | 100 mile Lime Rock | 2 | #E21-003 | David Hobbs | McLaren North America | 5th |
| 11.6.1978 | ETCC Zeltweg | | | Kindlmann / Linder | RGA Sohler Ski Racing Team | 3rd |
| 11.6.1978 | ETCC Zeltweg | | | König / Weltrowski | Eggenberger Motorsport | DNF |
| 11.6.1978 | 24 h Le Mans | | | Hervé Poulain | Hervé Poulain | DNA |
| 18.6.1978 | 100 mile Brainerd | 2 | #E21-002 | David Hobbs | McLaren North America | 32nd |
| 18.6.1978 | GP Brno | 29 | | König / Weltrowski | Eggenberger Motorsport | DNA |
| 18.6.1978 | GP Brno | 33 | | Kindlmann / Linder | RGA-Sohler Ski Racing | 6th |
| 18.6.1978 | GP Brno | 34 | | Strok / Lang | AC Dinamo Slovenijaauto | DNA |
| 18.6.1978 | DRM Mainz-Finthen | 55 | | Harald Ertl | Sachs-Sporting | 7th |
| 18.6.1978 | DRM Mainz-Finthen | 55T | | Harald Ertl | Sachs-Sporting | unused |
| 18.6.1978 | DRM Mainz-Finthen | 56 | | Albrecht Krebs | Team GS-Tuning Fruit of the Loom | 3rd |
| 18.6.1978 | DRM Mainz-Finthen | 57 | #E21-R1-08 | Markus Höttinger | Team GS-Tuning Fruit of the Loom | 1st |
| 18.6.1978 | DRM Mainz-Finthen | 58 | | Wolfgang Wolf | BMW-Faltz | 2nd |
| 18.6.1978 | DRM Mainz-Finthen | 59 | | Karl-Heinz Becker | Karl-Heinz Becker | DNF |
| 18.6.1978 | DRM Mainz-Finthen | 61 | | Walter Brun | Team Heidegger | DNF |
| 18.6.1978 | DRM Mainz-Finthen | 70 | | Walter Nussbaumer | Ecurie Basilisk | DNF |
| 18.6.1978 | DRM Mainz-Finthen | 76 | #E21-R1-17 | Gustav Fischer | Gustav Fischer | 4th |
| 18.6.1978 | DRM Mainz-Finthen | 78 | | Alfred Kunze | HAT | DNS |