GM VAG and Toyota all have similar shares of the global market. Depending on how you want to nitpick you can make The Americans, Germans or Japanese look like the dominant player in global vehicle sales but it's really too global of an industry to draw the lines based on the country the CEO's office happens to be in.
Firstly the linked source is paywalled so that's ignored.
Secondly, we are talking about post-war USA, so very generally '45 -> circa '70, not 2016 and the modern globalised world that are not representative of the world back then where even the internet didn't exist.
Secondly, we are talking about post-war USA, so very generally '45 -> circa '70, not 2016 and the modern globalised world that are not representative of the world back then where even the internet didn't exist.