We're talking about new cars, which in the US the average price of is $50K. The working class tends to buy used cars, of which 3 times more than new cars are sold each year.
Doesn’t matter the price really. People will lease new cars for a couple hundred a month. Or finance them to about that monthly. No one is paying $50k day one. This makes it so people you wouldn’t expect to afford a 50k asset actually do have one, because they can afford to part with like $200/mo.
You brought up the working class as sensitive to price and now you say they aren't. That doesn't seem like a logically consistent position but maybe I'm not understanding what you are saying.
Europe doesn't seem to have this financing environment. There are places that you don't even need credit or down payment to finance a used car here.