The former Audi factory in Zwickau restarted assembly of the pre-war models in 1949. These DKW models were renamed to IFA F8 and IFA F9 and were similar to the West German versions. West and East German models were equipped with the traditional and renowned DKW two-stroke engines. The Zwickau plant later manufactured the infamous Trabant until 1991, after it was acquired by the Volkswagen Group following the reunification of Germany, and has since been substantially rebuilt. In 2021, production of the Audi Q4 e-tron began at the plant, marking the return of Audis being manufactured at Zwickau after over 80 years.