Cele patru inele Cele "patru inele" din sigla Audi sunt simbolul celui mai vechi producator de automobile din Germania. Acestea simbolizeaza unificarea in 1932 a celor patru producatori de autovehicule care pana in acel moment au functionat in mod independent: Audi, DKW, Horch si Wanderer. Ei reprezinta radacinile a ceea ce astazi inseamna AUDI AG.

BMW buys the Eisenach automobile plant, where the Austin Seven was successfully produced under the name "Dixi 3/15 PS". This vehicle is developed further, going on sale in 1929 as the BMW 3/15 PS DA 2 with a range of different bodyshells. A small car with a lot of appeal, its popularity helps the company to survive the lean years of the Depression.