Auto Union was an amalgamation of four German automobile manufacturers, founded in 1932 and established in 1936 in Chemnitz, Saxony, during the Great Depression. The company has evolved into present day Audi, as a subsidiary of Volkswagen Group.

Auto Union is widely known for its racing team (Auto Union Rennabteilung, based at Horch works in Zwickau/Saxony). The Silver Arrows of these two German teams (Mercedes-Benz and Auto Union) dominated not only GP car racing from 1934 onwards, but set records that would take decades to beat.^{[citation needed]}