As I understand it, classic station wagons are classified as "cars", while SUVs are classified as "light trucks". [edit: in the US] Different regulations apply

As I understand it, classic station wagons are classified as "cars", while SUVs are classified as "light trucks". [edit: in the US] Different regulations apply to the two categories, in particular fuel economy. From what I'm seeing, a manufacturer's current line of "cars" has to average over 40 mpg, while their line of "light trucks" only has to average around 30 mpg. This has probably changed a bit... the most current numbers I see are for the 2020 model year.