Selling Your Car on Carwow Is an Auction, and That Works in Your Favour

Carwow's valuation isn't an offer. Selling there means dealers bid on your car, you set the reserve, and you never have to accept a bid.

Type your registration into carwow’s Sell my car page and a valuation comes back within moments. Most people treat that figure as the price. It isn’t. It’s a free estimate, and nobody has agreed to pay it yet.

Selling through carwow is an auction. The company says your car is put in front of more than 6,000 dealers, who bid against each other, and the best offer wins. Once you see it that way, the whole job looks different. Your photos matter more than the valuation, the reserve price matters more than both, and you’re never obliged to take a bid you don’t like.

That last part is the one people miss.

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What happens between the valuation and the money

The process is short, and carwow lays it out plainly. You enter your registration, add a few details, then upload photos along with the mileage and service history. A member of the carwow team gets in touch to agree a reserve price with you. After that, the listing is checked, and carwow says approval usually comes the same day or by the next working day.

Approved cars go into daily auctions. Carwow says a sale can happen in as little as 24 hours, and if your car doesn’t sell on the day, it’s shown for two more days. When a dealer wins, they arrange a collection day that suits you, come to you, and according to carwow can pay you there and then.

There’s no listing fee. Carwow states that selling with it is always completely free, with no admin charges, which is one of the main things it contrasts with other car-buying sites.

Your reserve price is the decision that counts

The reserve is the lowest amount you’d accept. It’s agreed before the auction starts, and if the bidding clears it, your car counts as sold.

Here’s why it gives you so much control. If bidding doesn’t reach your reserve, carwow says you can still choose to accept your best offer, or not. Its help pages are clear that you’re under no obligation to accept any offer you receive. So the auction can only ever tell you what the trade will pay for your car today; it can’t force your hand.

A sensible way to set it is to start from a number you already have. If your dealer has quoted you a part-exchange figure on your next car, that’s a natural floor. Carwow’s own claim is that most sellers it surveyed got an average of £1,000 more than their part-exchange quotes. That figure comes from an email survey of carwow customers in May 2025, so treat it as the company’s number rather than a promise, but it explains why so many people bother to run the auction before signing anything at the forecourt.

🔑 Start your listing and agree a reserve

Dealers bid on what they can see

Nobody kicks the tyres before bidding. The dealers are pricing your car from the listing, which makes the photos the closest thing you have to a sales pitch.

Carwow asks for both exterior and interior shots and suggests including images of the service history, the tyres and any damage. Its selling guide goes further: show the dashboard, every wheel and the tread on all four tyres, shoot in a clean, uncluttered spot, and keep the light behind you by moving the car rather than yourself. A proper clean inside and out is usually enough. For a higher-value car, the guide reckons a professional valet can pay for itself.

Be candid about the scuffs. Carwow’s guide puts it bluntly, telling sellers to be “scrupulously honest” in how they describe the car, because a buyer who finds something you didn’t mention is the one who comes back with a lower number. A dented bumper photographed up front is just part of the price. The same dent discovered on the driveway is an argument.

Dig out the paperwork early too. A full service history is something you can photograph and upload, and it’s one of the details carwow asks for at the listing stage.

Finance, paperwork and the odd exception

Cars still on finance. You can sell them. Carwow says many of its dealers buy cars with outstanding finance, and you’ll need a settlement letter from your lender. If the sale price is above the settlement figure, you keep the difference; if it’s below, you cover the gap.

Collection day. Have the V5C, your driving licence, the service history, spare keys, the finance settlement letter if there is one, and the locking wheel nut if your car uses one.

Cars it won’t list. Carwow doesn’t accept former service vehicles, such as ex-ambulances or taxis, or insurance write-offs. Vans go through a separate Sell my van page.

Why letting dealers compete is worth the effort

Selling a car usually means picking between two compromises. A private sale can get you more, but it brings strangers to your door, test drives and haggling. A part-exchange is easy, but you get one dealer’s number with nobody to push it higher.

Carwow’s auction sits in between. You do the work once, at home, with a phone camera and your paperwork. Then thousands of trade buyers do the competing for you, the winner collects from your driveway, and you keep the right to say no if the money isn’t there. It costs nothing to find out.

Do it properly, with honest photos, a full history and a reserve you’ve thought about, and the valuation you started with stops being a guess. It becomes a figure dealers have to beat.

💷 See what dealers will bid for your car