many car auctions state "winning bidder is buyer according to my terms" winning bidder does not mean right of first refusal after inspection. I spoke at length to a couple of sellers before driving hours to get car (with flatbed for hire). Fortunately the guy that tried to hide the rusted trunk under a new car cover let me out without penalty. The other car with trunk repaired with paper mache I took home because that was the deal BEFORE I bid and won. Check the original auction details for terms of sale. They are binding. Any agreement to inspect or check numbers and documents should be done before bidding.
Good Luck.
Chris