| 1837 | Adam Opel is born |
| 1862 | Sewing maschine factory |
| 1868 | Marriage to Sophie Marie Scheller |
| 1869 | Up till 1880 five sons (Carl, Wilhelm, Heinrich, Friedrich, Ludwig) |
| 1872 | Company-owned medical aid |
| 1886 | Lutzmanns fitters-shop |
| 1887 | Production of penny-farthings- and safety-bicycles |
| 1889 | Winner of the world championship (penny-farthings) |
| 1894 | Fritz wins the 620-km-long-distance race |
| 1894 | Friedrich Lutzmann builds his first two-seater |
| 1895 | The deat of Adam Opel, his widow, Carl und Wilhelm run the factory |
| 1895 | Ball bearings from Fichtel & Sachs |
| 1897 | Winner of the world championship (safety-bicycles) |
| 1897 | Lutzmann took part in the 1st motor vehicle show in Berlin |
| 1898 | Lutzmann's accident at the 2nd motor vehicle show |
| 1898 | Complete take over of Lutzmanns fabrication |
| 1899 | The first Opel as a patent motor vehicle. |
| 1901 | Motorcycles |
| 1902 | Darraqc-production licence |
| 1903 | The first of the self-developed engines |
| 1907 | Participation and winning of races |
| 1909 | The "doctor-car" |
| 1910 | Beginning of sales rationalisation |
| 1911 | Major fire, innovations in the building of car-bodies, engines also for other purposes |
| 1911 | 1 million sewing maschines produced, end of production |
| 1913 | Opel's widow dies |
| 1914 | Beginning of the 1st world war |
| 1916 | Six-cylinder |
| 1918 | End of the 1st world war |
| 1919 | Opel-racetrack |
| 1924 | Laubfrosch (leaf-green frog) |
| 1928 | Rocket vehicle, partial sale to GM |
| 1930 | Discontinuation of the motorcycle production |
| 1931 | Sale of the remaining 20% of the shares to GM, 1,2-l-"Volkswagen", Opel-Blitz truck |
| 1935 | Olympia, P 4, new factory in Brandenburg, cold chamber |
| 1936 | Kadett, Super 6, rolling training center |
| 1937 | Admiral |
| 1938 | Kapitän replaces the Super 6 |
| 1939 | Beginning of the 2nd world war |
| 1940 | 1 million Opels produced, end of the motor car-production |
| 1945 | End of the 2nd world war,partial disassembly |
| 1946 | Restart with the Opel-Blitz |
| 1947 | Olympia |
| 1948 | Kapitän |
| 1951 | Test facility, no more running-in regulations |
| 1952 | Olympia Rekord |
| 1955 | Olympia Rekord - facelifting |
| 1956 | 2 million Opels produced |
| 1957 | Rekord P1 |
| 1958 | Kapitän P1 |
| 1960 | Rekord P2 |
| 1961 | Rekord Coupé |
| 1962 | Kadett |
| 1963 | Rekord A |
| 1964 | KAD-series (Kapitän, Admiral, Diplomat) |
| 1965 | Kadett B, Rekord B |
| 1966 | Rekord C, Rallye Kadett |
| 1967 | Commodore A |
| 1968 | GT |
| 1969 | KAD 2 |
| 1970 | Ascona und Manta A |
| 1971 | Rekord D |
| 1972 | Commodore B |
| 1973 | Kadett C |
| 1975 | Ascona und Manta B |
| 1977 | Rekord E |
| 1979 | Kadett D |
| 1982 | Opel Corsa, Saragossa |
| 1984 | Kadett E |
| 1985 | Catalytic converters for all motor cars |
| 1986 | Omega |
| 1988 | Vectra A |
| 1989 | Calibra |
| 1991 | Astra F, Frontera |
| 1992 | Monterey, Eisenach |
| 1993 | Corsa B |
| 1994 | Omega B |
| 1995 | Four-valve diesel engine |
| 1998 | Gliwice (Gleiwitz) |
| 1999 | Zafira |
| 2000 | Agila |
| 2001 | Speedster |
| 2002 | Vectra B |
| 2003 | Meriva, Signum |
| 2004 | Astra G |
| 2006 | Astra GTC with the windscreen extended into the roof, Corsa, GT-new |
Opel
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