A couple come to mind...
Bought a '69 RAIII GTO 'Vert in '78 from the original owner. Raced it and beat the livin' daylights out of this car for 5 years.
Drove it from NY to FL and back 3 times, never had to rebuild the drive train. I had to sell the car in '83 due to economy (lost my job).
Sold it to, at the time, the president of the GTO club of Fl. I had someone call me in the early '90's that was trying to restore the car, I heard later the car might not have survived due to typically NY rust/rot.
Again, late '70's from a family friend, I was offered a Superbird for $2,500...car had some minor rust, I passed.
Mike