Changan

There was just one thing - the new Volga is based on a Chinese car, the Changan.

Changan Automobile said working hours and pay varied from worker to worker.

Changan, Ford and Mazda did not immediately respond to requests for comment.

Those passing by foot or on bicycle on Changan Avenue running north of the square were also stopped and forced to show identification.

Nio and Xpeng have chosen sleek designs, while Changan, based in western China, is making cars so rectangular that they look faintly Cubist.