CarPriceExpert - Used Car Prices

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CarPriceExpert FAQ

CarPriceExpert is a new and used car search engine with real time price tracking history

Our new & used car search engine helps you find the perfect car for sale

View price tracking and valuations on over 10 million car adverts to ensure you are getting the best deal if you are buying or selling your car

CarPriceExpert checks over 1 million car adverts daily across multiple websites including Autotrader, Pistonheads, Ebay and more.

Our database is then able to bring you real-time price tracking and valuations on almost any car listed for sale.

Sign up and use the garage feature to save cars to quickly get a summary of any price changes

Our service is completely free to use without signing up to see the last 3 months of tracking history

By signing up for a free account, you can view price history (including minimum, average and maximum prices) over the last 12 months!

Create a free account today!

Dev

Join CarPriceExpert

Guest

No need to sign up
3 months price tracking history

Search Now

Free

Free sign up
12 months price tracking history
Additional insights
Save up to 3 cars in your garage

Sign Up

Premium

2+ years price tracking history
Additional insights
Save up to 15 cars in your garage
Predicted future prices
Email alerts
No Adverts

Dev

Popular Used Cars For Sale

Dev

Join CarPriceExpert

Guest

No need to sign up
3 months price tracking history

Search Now

Free

Free sign up
12 months price tracking history
Additional insights
Save up to 3 cars in your garage

Sign Up

Premium

2+ years price tracking history
Additional insights
Save up to 15 cars in your garage
Predicted future prices
Email alerts
No Adverts

One point per month

Each point is a whole calendar month, not a day. An advert counts in every month it was on the market, at the price it was actually advertised at during that month — so a car listed for six months is counted six times, once per month, and not weighted by how long it sat there.

Outliers

We identify outlier adverts using a standard deviation model, and exclude them from the headline figures so they cannot skew the price calculations.
For example, a car accidentally listed at £100,000 where every other car is between £5,000 and £10,000 is excluded.

What is on the chart

Average price — the monthly average, excluding outliers. This is the line shown by default.
Average incl. outliers — the same average with every advert included. Useful where a search legitimately spans a wide range of prices.
This car — on a single advert, its own asking price alongside the market, including any changes the seller made. It is drawn as steps rather than a slope, because a listing holds one price until it is changed.

Also shown to registered users

Typical range — the shaded band behind the line: the lowest to the highest price that month once outliers are excluded.
Lowest incl. outliers and Highest incl. outliers — the true extremes, including the adverts the band leaves out.

Only the average and the band are shown to begin with. Click or tap any name beneath the chart to add or remove a series.

How much data is behind each month

The size of each point on the line shows how many adverts that month's average was calculated from, so a month built on a handful of cars is not mistaken for one built on hundreds. Where a month has very few adverts the point is drawn hollow and the line through it goes pale and finely dashed.

We show those months rather than hiding them. A quiet month is real information, and filling the gap with an estimate would put a price on the chart that no car was ever advertised at. Treat a hollow point as indicative and read the trend either side of it.

The most recent month

The last point is the month we are currently in, so it is only as complete as today's date and it will keep moving. It is drawn with a dashed line for that reason.

How far back the chart goes

Guests and unconfirmed accounts — about 3 months
Registered, email confirmed — about 12 months
Premium accounts — a little over 2 years

Two different kinds of number

The line and the columns do not measure the same sort of thing, which is why they have separate scales — the line's on the left, the columns' on the right.

Adverts on sale — the line

How many adverts existed in that month. An advert on the market across six months is counted in all six, because it was genuinely for sale in each of them.
This is a level, not a total — adding the months together would count the same cars over and over.

Newly listed — blue columns

Adverts we saw for the first time in that month.

Stopped appearing — orange columns

Adverts last seen in that month that have not appeared since.
We deliberately do not call these sold. When an advert is removed we cannot tell whether the car sold, the seller withdrew it, or the listing simply expired — so this counts adverts leaving the market, not cars changing hands.

Reading the two together

Taller blue than orange means more cars are coming up for sale than leaving, and the line will tend to rise. Taller orange than blue means the model is selling through faster than it is being restocked. Both columns being tall while the line stays flat means brisk turnover — plenty of movement, steady choice.

The most recent month

The last month is the one we are currently in, so it is only as complete as today's date and its columns are drawn pale. “Stopped appearing” is the most understated of the three: an advert has to be missing for a while before we treat it as gone, so the newest month always looks quieter than it will turn out to be.

How far back the chart goes

Guests and unconfirmed accounts — about 3 months
Registered, email confirmed — about 12 months
Premium accounts — a little over 2 years