This is a timeline of the main events in the car history from 1920 to 1940:
1921 Citroen was the first European manufacturer to adopt production-line manufacturing. If you need some more information on Citroen try classic Citroen cars.
1924 Benz and Daimler sign an Agreement of Mutual Interest valid until the year 2000.
1924 Morris sets up its production line at Cowley.
1924 Opel sets up production line at Russelsheim, first German mass-manufactured car is Opel 4PS Laubfrosch. Soon Opel has 37% of the German market.
1925 Morris has 41% of total British car production.
1925 Citroen, Renault and Peugeot produce 550.000 cars, other car companies can not compete.
1926, Benz & Cie. and DMG merge as the Daimler-Benz company and name all their automobiles Mercedes Benz.
1926 Fast-drying color – Durco lacquer is developed.
1929 Karl Benz dies.
1930 250 car companies that did not have production-line manufacturing disappeared by this year.
1940 Only 17 car manufacturers were left in USA due to the great depression.