Revealed: The Best Value Used Cars to Buy in September 2024 (2024)

According to CarGurus data, the Nissan Leaf is the best value used car on sale in the UK right now.
It's joined in our top 10 list by the Porsche Taycan, Renault Zoe, Mazda CX-3 and Ford Mondeo.

The car market – both new and used – has been so topsy turvy over the past two years that it can be hard for buyers to know where to start. To help in your search, each month our data analysts study the extensive used car inventory listed on CarGurus UK by dealerships across the country, and compare average listing prices in the month that's just ended versus those in the same month the previous year.

In this regularly updated guide, we identify the 10 cars where the average listings price has seen the largest year-over-year decrease, and in doing so highlight the used cars that represent great value in the current market.

So, without further ado, let’s dive into what CarGurus has identified as the best value used cars on sale right now. Be sure to check back each month for the latest data.

The Best Value Used Cars in the UK

1. Nissan Leaf (2017-)
2. Audi E-Tron (2018-)
3. Fiat 500X (2014-)
4. Renault Zoe (2020-)
5. Citroen C4 (2020-)
6. Land Rover Discovery Sport (2015-)
7. Porsche Taycan (2019-)
8. Mercedes EQC (2019-)
9. Mazda CX-3 (2016-2021)
10. Ford Mondeo (2014-2022)

1. Nissan Leaf (2017-)

Average listing price in August 2023: £16,377
Average listing price August 2024: £10,702
Percentage reduction: -34.7%
The Nissan Leaf might not be the most exciting electric car to drive, or the most glamorous to own, but there's still plenty to like. For a start, it's a practical family car that's extremely easy to drive and to live with. As one of the first mainstream EVs, it's also in plentiful supply on the used market, with models spanning its first and second generations. Most Leafs don't have the range to match newer electric cars, but opt for an e+ model and officially it'll do up to 239 miles between charges (think roughly 200 miles in real world driving).
Nissan Leaf Review

2. Audi E-Tron (2018-)

Average listing price in August 2023: £40,737
Average listing price August 2024: £26,670
Percentage reduction: -34.5%
The E-Tron is one of several premium used EVs to have experienced significant price drops in recent months. It’s a big, comfort-oriented SUV that is great for devouring long journeys - provided they fall within its range. Go by WLTP figures, and that range could be 186 or 271 miles, depending which battery option you choose. However, in our tests the E-Tron has been disappointingly inefficient, only returning around 2 miles/kWh. This is around half of what some of its rivals can manage, and means the real world range can be significantly lower than the official figures. Note that the E-Tron was revised in 2023 and is now called the Q8 E-Tron.
Audi E-Tron Review

3. Fiat 500X (2014-)

Average listing price in August 2023: £14,258
Average listing price August 2024: £9,495
Percentage reduction: -33.4%
It's not difficult to see the logic behind Fiat's decision to build an SUV version of its hugely popular 500 city car. If it could combine the style and fun of the 500 with the hugely popular SUV body style then surely the Italian firm would have another hit on its hands. In reality, the 500X has never really caught on in the UK, in part because it has so many rivals that are either roomier, better to drive, or both. If you are tempted by the 500X's retro styling, note that Fiat updated the car in 2018, and that it is these newer models that are the ones to go for on account of their improved engines and upgraded interiors.
Fiat 500X Review

4. Renault Zoe (2020-)

Average listing price in August 2023: £15,520
Average listing price August 2024: £10,415
Percentage reduction: -32.9%
Along with the Nissan Leaf, the little Renault Zoe was a pioneer in the electric car class. For a while after its launch, used prices were on the floor as the market struggled to know what to do with electric cars (at one time you could pick up a low-mileage used Zoe from as little as £5,000), but as the market caught on and the semiconductor shortage caused car prices to rise, so prices of used Zoes shot up. In today’s market, prices for Zoes are softening once again, and while the average listing price of around £10,000 is still far higher than previously, it’s important to note you’ll get a much better car for your money due to improvements that have been made to the Zoe’s range and performance over time.
Renault Zoe Review

5. Citroen C4 (2020-)

Average listing price in August 2023: £19,486
Average listing price August 2024: £13,544
Percentage reduction: -30.5%
That the Citroen C4 is available with a fully electric drivetrain is perhaps unsurprising given the rest of this list. However, unlike cars such as the VW ID.3 or Jaguar I-Pace, the C4 can also be had with petrol and diesel power, as well as the fully electric option (which, incidentally, has an official range of 217 miles, which in our experience translates to 110 and 200 miles depending on the time of year and your driving style). While something of a middle-of-the-road offering in a lot of regards, the C4's quirky styling and ample practicality do give it some appeal. And with prices on the used market having fallen sharply over the past 12 months, it's now also better value than ever.
Citroen C4 Review

6. Land Rover Discovery Sport (2015-)

Average listing price in August 2023: £27,610
Average listing price August 2024: £19,238
Percentage reduction: -30.3%
The Discovery Sport offers a compelling blend of a premium badge, neat styling, good driving dynamics, and impressive practicality for a vehicle of its size. That includes the availability of seven seats, as well as middle row seats that slide and fold in all manner of ways. One consideration is that the Discovery Sport doesn't have the best reputation when it comes to reliability, but if you're prepared to overlook that, this is a seriously tempting premium compact SUV.
Land Rover Discovery Sport Review

7. Porsche Taycan (2019-)

Average listing price in August 2023: £91,329
Average listing price August 2024: £64,991
Percentage reduction: -28.8%
The Porsche Taycan is, in many ways, the world's greatest electric car. After all, it has the range, driving performance, comfort, space, technology and charging speeds to shame almost any other EV. Of course, that also means it's a very expensive car to buy new, which in turn leaves it at risk of massive depreciation. Sure enough, it's now possible to pick up a used Taycan for around two-thirds of its original cost, and with dozens of examples to choose from it should be easy to find your ideal specification.
Porsche Taycan Review

8. Mercedes EQC (2019-)

Average listing price in August 2023: £44,689
Average listing price August 2024: £31,903
Percentage reduction: -28.6%
Mercedes offers a range of electric vehicles, all of which blend good performance and range with the kind of high quality interiors you'd expect of the German brand. The EQC was its mid-sized SUV, which although no longer on sale went head-to-head with the Audi E-tron, BMW iX3 and Jaguar I-Pace, among others. A few years after its launch, the short-lived EQC has dropped in price to a point where used models might now be considered as a more upmarket alternative to a new electric car from a mainstream brand. The EQC is smooth and enjoyable to drive, and has a real feel-good factor about it. It makes for a very interesting used buy.
Mercedes EQC Review

9. Mazda CX-3 (2016-2021)

Average listing price in August 2023: £15,163
Average listing price August 2024: £10,889
Percentage reduction: -28.2%
The CX-3 is a rival to small SUVs such as the Nissan Juke and Renault Captur. Its standout feature is the fact it's more enjoyable to drive than most other cars of its type, with accurate steering and an appetite to dive into a corners that you wouldn't normally associate with a high-riding vehicle. The biggest drawback of the CX-3 is its limited rear seat space, and it also has a smaller boot (350 litres) than rivals including the Captur (377-455 litres) and Skoda Kamiq (400 litres). Buyers should note that Mazda's philosophy when it comes to engines is that a larger non-turbocharged engine can actually be more efficient in normal driving than a smaller turbocharged unit. As such, don't be put off when you see a CX-3 with a 2.0-litre petrol engine when a lot of rivals have 1.0-litre units, because in reality it should prove just as economical.
Mazda CX-3 Review

10. Ford Mondeo (2014-2022)

Average listing price in August 2023: £13,354
Average listing price August 2024: £9,676
Percentage reduction: -27.5%
The Ford Mondeo has been yet another victim to the rise and rise in popularity of SUVs and crossovers. Once a mainstay in the large family car class, the Mondeo had become a niche choice by the time it was withdrawn from sale in 2022, which is all the more baffling when you remember what a good car it was. In its final generation the Mondeo offered a tremendous amount of space, along with good performance and the kind of finely honed ride and handling balance that modern-day Ford built its reputation on. It can make for a cracking used buy.
Ford Mondeo Review

Methodology

As a used car marketplace, CarGurus UK sits on a treasure trove of data. Where possible, we try to use this data to help car buyers to be more informed, whether it's through clear price analysis and deal ratings, the number of days a vehicle has been for sale, or any price drops that have been applied. For this article, our team of data analysits looks at year-over-year price changes for thousands of different car models across our website, and highlight the 10 cars each month that have dropped in price by the highest percentage compared with the year before. In doing so, we are able to identify vehicles that offer excellent value relative to a year ago, and thus help consumers who are focused on securing one of the best value models in the current market.

To guard against anomalies in stock, our analysts only looked at models with at least 100 examples listed for sale on CarGurus.co.uk, and only cars that were registered between 2013 and 2023 are included to guard against results being skewed by inventory of nearly new cars with delivery mileage and therefore much higher list prices.