Correct, its not about the paperwork all the time, I think the term one owner or fsh is used to freely as it normally not entirely true.
A legit second hand car always has something wrong with it when you go to look at it, I always find something....
Got my dad a partial engine for his 2013 A4 2.0tfsi and few bonus bits after finding out it was covered on a recall, £6k

Garage he bought it off (Main dealer) sold it on knowing it needed the work

Local dealer couldn't apologise enough, did the work, fixed all the stuff they found wonky + Battery
For a car with a Full Audi inspection check and one owner 30k miles and fsh it had over 8k of stuff wrong with it...
It now has a rebuilt bottom end full under tray, no oil or coolant leaks and a properly working auto box.
Driftbridge VW/Epsom Audi
