I fear that you (and others in this thread) may be underestimating the size of the driver/passenger seat of an American make's sedan (e.g. Ford, Chevy, etc... IOW, the same people who make these trucks.)

Certainly, having owned multiple Mazdas and Hondas, Japanese cars tend to be smaller.

So many big boned people these days

It seems like being fat is uncomfortable then, rather than cars designed for human bodies.