Contracts can be voided for a variety of reasons including mistake/error.
If you were buying a vehicle on ebay and accidentally added an extra digit to your bid, the dealer couldn't enforce your bid (six-figures). In this case it's either a fraudulent listing (obviously not enforceable) or an error. I think it was a listing error and the dealer won't be forced to take a $10k bath, but it may get and deserve some negative feedback.
There's was infamous internet CF a few years back over a guy's winning bid on a new M3 that was like $15k under invoice. It went viral and I think the dealer and the bidder compromised, but only because of the PR nightmare it became. The dealer could have easily prevailed in court.