CAFE regs made USian hugecars relatively profitable, and car makers got USians to demand them via savvy marketing. That's what I reckon anyway.
2. You're on a site with a bunch of programmers who regularly use weird words for stuff that already has a name. Reading through HN is wading through a swamp of made up names and tech neologisms, you're just used to it already. I once told a software guy that our team's SWEs had migrated away from React and Node to Stork.JS and Blackadder. He nodded like that meant anything.
3. I like it and you can't stop me.
So much for unambiguous.
I note, also, that you didn't ask if anyone
> " heard it used in conversation or writing where the speaker's intention was a meaning that included people outside of America? "
which further explans why non-USAians like myself adopted the practice decades past of prefering clarity for precision.