Are private sellers worse cars?

Looking at a car currently listed. I won the auction initially but the seller rejected the offer. Its listed as a run and drive(as little as that means) but the price overall has been pretty low.

Its a towncar with 250k on it and theyre asking 900 for it. Im familar with the platform so im comforrable with the miles on it but not a big fan of hidden issues. Its more of a "why would they put it on copart as opposed to marketplace"