How long should a used car take to sell?

There is no single right answer, and using one is how dealers panic over healthy stock and ignore genuine problems. What a normal window looks like, and why stock turn beats margin per unit.

Updated 1 August 2026 · 5 min read · Written for UK independent dealers

Ask ten dealers and you will get answers between three weeks and three months, all delivered with confidence. They are all right, because they are describing different cars.

The useful answer is not a number. It is a method for working out the number that applies to the car in front of you.

Why a single rule fails

A car's natural selling window depends on at least four things:

Price band. Cheap cars sell faster, almost without exception. There are more buyers with £4,000 than with £25,000, and the decision takes less deliberation. A £4,000 hatchback that has not sold in 45 days has a problem. A £28,000 car at 45 days is doing fine.

How common it is. A very common model has more buyers searching for it — and more competitors. Usually the demand effect wins and common cars turn faster.

Season. A convertible has two different natural windows depending on the month, and they differ by weeks.

Local demand. The same car sells at different speeds in different postcodes.

Applying "everything should sell in 60 days" across that variety produces two failures at once. You panic about a perfectly healthy prestige car at day 50 and cut its price for no reason. And you feel relaxed about a cheap hatchback at day 50 that has been in trouble for a fortnight.

Getting the right benchmark

The benchmark you want is the median days-to-sell for that specification in the sold record — how long cars like this one actually take, not how long yours has taken.

If you have access to market data, that figure is available directly and it is the single most useful number for managing a forecourt. Match on make, model, engine, trim and year, and look at cars sold in the last 90 days.

If you do not have that data, build your own. Record days-to-sell on every car you sell, along with the make, model, price band and month. After thirty or forty units you will have a genuinely useful private benchmark, and it will be more relevant to your business than any national average because it reflects your patch and your customers.

Rough shapes, if you have nothing else

These are starting points to be replaced by real data as soon as you have it:

Treat these as sanity checks rather than targets. If your own figures differ consistently, believe yours.

Why turn matters more than margin

Dealers naturally optimise margin per car, because it is the number you feel at the moment of sale. Return on capital is the number that actually determines what the year looks like.

Consider two cars, both bought for £8,000.

Car A sells in 30 days for a retained profit of £900. Car B sells in 90 days for a retained profit of £1,600.

Car B feels like the better deal, and per unit it is. But over 90 days, Car A's capital has done three turns at £900 — £2,700 — while Car B has made £1,600 once.

The dealer chasing margin per unit ends up with a forecourt full of slow, expensive stock and no cash. The dealer watching turn keeps money moving and makes more overall, on smaller-sounding deals.

Two extra turns a year on a £150,000 stockholding is worth more than another £200 of margin on every car you sell. Turn is where the leverage is.

This is not an argument for giving stock away. It is an argument for measuring the right thing — profit per pound of capital per month, not profit per car.

Setting your own targets

Three numbers worth deciding deliberately.

Target days in stock. The average you are aiming for across the forecourt. For most independents 40 to 45 days is a sensible ambition; under 35 is genuinely good.

Urgent threshold. Where a car stops being normal and starts needing action. Roughly 1.5× the target — so 60 to 70 days.

Dead stock threshold. Where you stop retailing and exit. Around 2× target, so 80 to 90 days, and it should be a rule you actually follow rather than a number you keep extending.

Then scale all three by price band, because a £30,000 car legitimately needs longer than a £5,000 one.

What to do at each stage

Days 1–14. Do nothing except make sure the advert is right. Photographs, description, every field filled. Most cars that sell quickly sell in this window and price changes here are almost always premature.

Day 14. First review. Not a price review — a presentation review. Is it listed everywhere it should be? Are the photographs good? Has anyone enquired?

Day 30. Now look at price against the market. If you are more than about 5% over the sold median for that spec, move. If you are at or below it, the problem is not price — go through the diagnosis properly.

Day 45. Decision point. Meaningful action, not another £100. Either a real price move, a channel change, or a considered decision to hold with a reason you could defend out loud.

Day 60+. Exit planning. Trade, auction, or a discount that will definitely work. Every further week is costing you roughly 0.5% to 0.75% of the car's value in capital and depreciation.

Averages hide the problem

One trap in measuring average days in stock: it improves when you sell your fast cars and gets dragged around by outliers.

A forecourt averaging 42 days sounds healthy. If that is twenty cars averaging 25 days and six cars averaging 140, the average is meaningless and the six are eating the business.

Look at the distribution, not the mean. Specifically: how many units, and how much value, is past its window. That number tells you the truth.