Wartburg is anEast German automotive brand used for cars manufactured atVEB Automobilwerk Eisenach. Origins of the brand date back to 1898. The name derives fromWartburg Castle on one of the hills overlooking the town ofEisenach where the cars were made. From the 1950s until the late 1980s, Wartburgs featured a three-cylindertwo-stroke engine with only seven major moving parts (threepistons, threeconnecting rods and onecrankshaft). Production ended in April 1991, and the factory was acquired byOpel.