As the beige car bounced up to the former Soviet barracks, the rattling of its half-century-old motor overpowered the din of people setting up for the day’s festivities at a temporary fairground.
A man dressed in the dark green uniform of a 1950s traffic cop, replete with an old-fashioned leather cap, blew his whistle sharply and waved the car — a well-maintained 1980 Wartburg, a classic despite the engine’s clatter — through to the parking lot.
The driver of the little sedan, once considered the Mercedes of Eastern Europe, slipped the clutch, jolting the car forward. The lapse earned a rebuke from a costumed parking attendant.
“You are entering the G.D.R. now,” he yelled with mock anger, referring to the extinct East German state. “Leave your Western manners behind!”
For more than a decade, the G.D.R. Museum Pirna has played host to a May Day event in Pirna, just a few miles from the Czech border in Germany’s east, where people can celebrate cars emblematic of the communist era.
Built after the war in state-owned factories, the cars are smaller, less powerful and less showy than most Western cars from the same era. But to the excited visitors in Pirna, who often dress in contemporaneous garb to match the vehicles they arrived in, the polished and pampered cars embody a local pride.