CAFE regulations are based on vehclicle footprint as of 2012. That’s why all the small trucks suddenly disappeared from the market that year. They had stricter fuel-economy standards than a sedan. The giant vehicles we’re gettimg today is the result of regulations that make it easier to just keep making vehicles bigger than to make them more efficient.

People will pay good money for a 15yo Ranger because you can’t get an equivalent vehicle new. The marketing to make oversized cars trendy is to prevent competition for the new vehicles coming from the used market.