Only thing similar to this I've ever seen was a car a friend bought.
He went to an estate auction with his wife, and saw a VW Beetle under a cover in the garage. He was a huge VW collector, so he put in a bid of $500, figuring if it was good nough for a cover, it was worth at least that much.
A day or two later he gets a call to come get his new Bug. Gets to the house, pulls the cover off, and finds a pristine 1970 Beetle. 1001 total miles, original everything, down to the air in the tires. Window sticker still in the window, factory plastic still on the seats. Every last option the dealer offered. The car was FLAWLESS.
He drove it to shows, collected a room full of trophies, and ended up selling it with 9000 miles for a little over $15,000 to a museum.