I’d guess a greater percent of car owners in the US are working class. A lot of cities car modal share is like 85% or higher which shows how much car ownership is democratized in the US compared to asia or eu, where ownership might be higher relative income and more able to afford new ev premium prices vs cheap used gas cars.
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.