Short answer: for the right buyer, yes. A car auction is where vehicles change hands at trade prices — often hundreds or thousands below the forecourt. But it's only worth it if you can value a car accurately and you're comfortable that there's no warranty and no comeback. Get those two things right and auction is one of the best ways to buy a car in Britain.
Why it's worth it: the price
Every car has two prices — the trade price and the retail price. Auction is where the trade price is set, before a dealer adds prep, warranty and margin. Buy there and you're paying nearer what the car is actually worth, not what a forecourt needs to charge. On an ordinary family car that gap is often several thousand pounds.
The other upside: choice and speed
Thousands of cars pass through UK auctions every day — far more variety, and far more of any one model, than you'll ever see on forecourts. The exact spec you want is almost certainly coming through a sale soon, and it'll be bought and paid for in minutes, not weeks of haggling.
The catch — and it's a real one
Auction cars are sold as seen. There's usually no warranty, no test drive, and once the hammer falls the car is yours, faults and all. There are buyer's fees on top of the hammer price, and you may need to arrange transport. None of that is a dealbreaker — but it means the saving is only real if you can tell what the car is worth before you bid.
Auction isn't cheap cars — it's trade-priced cars for anyone who can value them. The skill is the saving.
So is it worth it for you?
If you can read a condition report, judge a car's true value and accept the sold-as-seen risk, auction will beat the forecourt almost every time. If you can't yet, that risk can wipe out the saving — which is exactly the part worth having done for you. See also what not to do at a car auction.