Wartburg was a car marque manufactured in East Germany. The name "Wartburg" derives from Wartburg Castle on one of the hills overlooking the town of Eisenach where the cars were manufactured. From the 1950s, Wartburgs had a three-cylinder two-stroke engine with only seven moving parts.
Definition #2 for "wartburg"
Wart or vart means Rose in Armenian & Burg is an ancient or medieval fortress or walled town.