East Berlin - Unter den Linden
I took a bus tour of East Berlin. Unter den Linden was not a major traffic street in Berlin, and still is not. It had been the show street before World War II. A part of the Brandenburg Gate is in the background.
That looks like a Mercedes-Benz star on the car closest to the camera. I presume it is a pre-war model. The car behind it also looks looks like it was from the late 1930s.