Often things are missing from another car because one manufacturer does not want to pay a hefty royalty to another company for rights.
One case was with intermittent wipers of variable speed. One of my Euro cars did not have them and it was Saab or Volvo who would not pay a royalty to lowly Chrysler. We had both at the time. It always struck me as strange, being out in something like my Dodge work car and having these great wipers that were on a rheostat and getting in the high priced iron and there were primitive selections.
Seat pouches? Hardly novel, my 96 Toyota T-100 and 1998 Volvo both had pouches in front.
You forgot to use the word "quirky" ???