Yanno, one of the most desirable vintage cars is the Benz 540K AutobahnKurier of the mid-late thirties.
Only six of these beasts were produced, and only three are still known to exist. Two of them have excellent provenance, have never spent a night out in the rain, etc. The third one showed up in Iran in the sixties in a barn. It had been sold to a Persian oil prince who gave it to his teen sons to drive around the estate, which they did for years until it shot craps and was put away, a total roach coach by then.
Some collector spent over a mill to put it back together using parts remanufactured or harvested from other junked 540 (non-Kurier) cars. And it’s on the circuit now, looks good in shows, but it’s not original and only has at most 60% of the value of the others.
Kids with too much money…whatcha gonna do?