They are included. The standards just vary by vehicle size, which makes obvious sense: you can’t hold a station wagon to the same standard as a two-passenger co

They are included. The standards just vary by vehicle size, which makes obvious sense: you can’t hold a station wagon to the same standard as a two-passenger compact. It’s also the case that cost already increases with vehicle size. As your own article notes, American consumers have already demonstrated they’re willing to pay huge premiums for larger vehicles. > Automakers have reasons to sell bigger vehicles outside of emissions regulations. SUVs and trucks typically cost only a bit more to make than smaller vehicles, but consumers have demonstrated that they’re willing to pay as much as 50 percent more for them, making profit margins much higher.