You're right. There's ALWAYS someone running around with "I got a special order car from the factory and I have the papers." Yet somehow, nobody ever gets to actually SEE the papers. It's also weird that the claim is made about equipment that was no longer in production. It would be more believable if it was a 4 speed manual behind an Olds 350 or 403 of the same year. Not that anyone who knew the cars would believe it, but still. You could fake out an unknowing person.
I've "specially" ordered several cars over the years and the only special thing I got was when they left OFF little parts here and there on my black 85 442. Hard to get paperwork to document stuff that isn't there.
🙂 Otherwise, I got to pick the options off a menu, and that was that.
The craziest special car I'm aware of off the top of my head is Pete Estes' (Chevy General Manager at the time, and it was not really his, but built for him) 1968 Convertible Z/28. The only real Z/28 convertible ever to exist. One of one. The idea was for Estes' to like the car enough to authorize special performance parts on the car enough to give the green light to put them into production, thus making them legal for Trans Am racing. Pete preferred convertibles, so they knew he'd eventually drive that car. The car changed hands a few times, and now Dana Mecum (yeah, THAT Mecum) owns the car for the second time. And yes, there's a pedigree trail to prove this one exists, for sure.