That same thing (almost) happened here once. I missed buying a car that was advertised in the Thrifty Nickel simply as a "1963 Chevrolet 2-door sports car, mint condition, $200"
I called the # printed in the ad to try and get some more info and all the woman that answered would tell me was an address and if I wanted to see the car to go there.
As I wouldn't consider the Impala a sports car for that year the only cars that came to mind that might fit the description were the 'Vette and the Corvair.
It seemed to be one of those "Too good to be true" kinda situations so I hemmed and hawwed about it for close to an hour before going to have a look (stupid me)
When I arrived I was greeted with the sight of an exceedingly happy fella dragging a 1963 split-window StingRay onto a trailor with a come-along.
This lady's ex-husband had found this car in shambles in a junkyard a decade or so previous and bought it as it had a #'s matching drivetrain still in it. He then spent every extra moment of his time over the next several years restoring it back to cherry condition. (his obsession with the car resulted in the divorce)
She got the car in the divorce settlement with the condition that were she to ever sell it he would have to be given 1/2 the sale price (Louisiana is a community property state)
So she sold it for $200 laughing in glee with the thought of the probable look on his face getting a hundred bucks and a copy of the Bill of Sale in his mailbox.