[1]https://www.automobile-catalog.com/car/1965/787220/ford_coun...
This all combined to kill off the station wagon.
They had a scene once where he drove a jag, and the top bezel around the windshield was right at eye level.
Safety regulations make cars heavier and efficiency requirements make them more aerodynamic. End result is that I cannot physically fit in an Accord without reclining the seat.
Germans, Dutch, even the Spaniards are taller on average than Americans.
So Americans are either more muscular or more fat than Germans, either of which would make them larger.
Personal anecdote, my 6'3" friends have no problem fitting in my Porsche Cayman with several inches of headroom to spare, and that's about as short as German cars go. I think the Germans just prioritize vertical space in their cabins more than the Japanese.