One of my neighbors in the '80s told me he had served in the German army in WW2. One time he showed me his rather nasty battle scar from the war. He was a fine gentleman and his wife was also very nice. Anyway, they had one car, a MINT '67(?) Buick Riviera with the flip up headlights. But he told me to buy a BMW and not a Mercedez as the BMWs were much better built. Maybe at that time? Years later I did buy a BMW Z3 and we really enjoyed it. As to your question, the average American car buyer back in the day couldn't afford to buy any of those cars you listed, let alone an American made Cadillac, Lincoln, Corvette, etc. Those were "dream" cars owned by wealthier people here and a "prize" to own someday by everyone else "when their ship came in". In the '50s through the late '70s here, there were very few affordable imported vehicles. I think Toyota was one of the first. So, our automobile manufacturers made vehicles that everyone could afford. A lot of those cars were JUNK but hey, that's the models they made and WE had no other choices. Globalization wasn't on anyone's radar yet.