Maybe I'm reading these graphs poorly, but doesn't the type of car people buy seem to correlate highly with the affluence of the area? There's more money in NY

Maybe I'm reading these graphs poorly, but doesn't the type of car people buy seem to correlate highly with the affluence of the area? There's more money in NY, LA, SF, San Diego, etc. (as shown by the graphs at the bottom), so more people in those cities drive nicer (european) cars. What am I missing?