Maybe the woman bought the car, drove it home, then had a stroke or some other health issue and was unable to drive it. Having no relatives, to make her get rid of the car, or take it from her, the car sat undriven until she died. As to why she let it set for more than thirty years- maybe it was a symbol of accomplishment- her first new car bought with cash. Maybe it was an incentive for recovery, "Some day, I'm gonna drive that car!"
Who knows, I think I'll bid on it if it comes back up again. I'll have my brother in Jersey pick it up for me. If I get it, I'll let everybody know what I find out.
Later,
David G.