Most money lost at car auctions isn't bad luck — it's avoidable mistakes made in the heat of the room. Auction rewards preparation and punishes everything else. Here are the seven things not to do, in roughly the order they cost people money.
1. Don't bid without a ceiling
The single most expensive mistake. Work out your maximum before the lot comes up — the car's true value minus every cost to buy, prepare and sell it — and never go past it. Bidding on feeling is how you "win" a car for more than it's worth.
2. Don't trust the photos
Auction photos are taken to sell, not to describe. Read the condition grade and the report instead — they'll tell you about the wear, damage and faults a flattering thumbnail hides.
3. Don't ignore the buyer's fees
The hammer price is not the price you pay. Add the buyer's fee, VAT where it applies, and any transport — then check the deal still works. A "bargain" can evaporate once the real total lands.
4. Don't skip the catalogue and history checks
Mileage, MOT history, number of owners and any write-off markers all matter, and much of it can be checked before you bid. Walking in blind is how you buy someone else's problem.
5. Don't get into a bidding war
When two buyers decide they must have the same car, only the seller wins. If the price runs past your ceiling, let it go — there's always another car, and discipline is the whole edge.
6. Don't forget it's sold as seen
There's usually no warranty and no comeback. Once the hammer falls the car is yours, faults and all. Buy as if no one is coming to fix your mistake — because they aren't.
7. Don't buy the first car you see
The best days at auction often end with you buying nothing. The patience to wait for the right lot beats the urge to come home with a lot every time.
Auction doesn't punish bad luck — it punishes the buyer who turned up without a plan.
The takeaway
Every one of these comes down to the same thing: do the homework before you bid, and stay disciplined once you do. If that sounds like a lot to get right first time, it is — and it's exactly the part we handle. See also is it worth buying a car at auction?