Wartburg was the name of an automobile manufactured in East Germany (DDR/GDR). It had a two stroke engine. The mark goes back as early as 1885. The automobile was produced to 1989 and was halted due to the lack of rentability in production. The two stroke engine were substituted by a 4 stroke VW motor in the last year of production, but the time and technology had pased and the car couldn't live up to modern standards. The final nail to the coffin became the introduction of Deutsche Mark (DM) since the cost of only producing car reached DM 20,000. There are still cars in drivable condition and one can still see a happy Wartburg owner in his very enjoyable car. Wartburg was exported to many countries in Europe. → Link (http://de.wikipedia.org/wiki/Wartburg_(PKW)) - German page
The name "Wartburg" derives from the Wartburg Castle on one of the hills overlooking the town of Eisenach where the cars were manufactured.