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Cheapest cars to run

Figures updated

The Volkswagen Polo (diesel) is the cheapest car to fuel of the 74 petrol, hybrid and diesel cars we cover: about £910 a year for 7,500 miles. Electric cars charged at home cost less again: about £438 to £548 a year for the same miles.

Costs use each model's typical official economy and current prices (petrol 171.4p a litre, diesel 198.4p, home electricity 26.3p per kWh; today's UK average). Every car registered since April 2017 pays the same £200 a year car tax (2026/27), so tax doesn't change the order.

The 20 cheapest petrol, hybrid and diesel cars to run

Cheapest cars to run that use fuel
#CarA yearCheapest versionNew from
1Volkswagen PoloSupermini£910diesel£22,310
2Honda JazzSupermini£931petrol£28,475
3Renault ClioSupermini£931petrol£20,995
4Toyota YarisSupermini£931petrol£23,845
5Audi A1Supermini£934diesel–
6Peugeot 208Supermini£945diesel£20,565
7Fiat 600Small SUV£952petrol£23,995
8Toyota CorollaFamily hatchback£972petrol£30,845
9Renault CapturSmall SUV£992petrol£22,495
10Toyota C-HRSmall SUV£992petrol£31,695
11Toyota AygoCity car£1,015petrol£21,645
12Vauxhall CorsaSupermini£1,015petrol£20,590
13Vauxhall FronteraSmall SUV£1,015petrol£22,820
14Audi A4Executive car£1,030diesel–
15Ford FocusFamily hatchback£1,054diesel–
16Skoda FabiaSupermini£1,066petrol£21,070
17Skoda OctaviaFamily hatchback£1,074diesel£28,505
18Fiat 500City car£1,078petrol£18,995
19Vauxhall MokkaSmall SUV£1,084petrol£26,195
20Ford FiestaSupermini£1,096petrol–

Electric cars: cheapest of all if you charge at home

Charged at home at 26.3p per kWh, these cost about £438 to £548 a year for 7,500 miles, allowing 10% lost in charging. On an overnight EV tariff it can be under half that; relying on public rapid chargers can cost more than petrol. Official efficiency is published only to the nearest mile per kWh, so we don't rank them against each other.

Cheapest to fuel in each class

Want your own figures? The fuel cost calculator and EV charging cost calculator take your mileage and prices. See also the cars with the biggest boots.

Frequently asked questions

›What is the cheapest petrol or diesel car to run?

Of the cars we cover, the Volkswagen Polo (diesel): about £910 a year in fuel at 7,500 miles, using its official economy and current UK prices.

›Is an electric car cheaper to run?

Charged at home, yes: the electric cars we cover cost about £438 to £548 a year to charge at 7,500 miles on a standard tariff, less than any petrol or diesel car. Relying on public rapid chargers can make an electric car dearer to run than petrol.

›How do you work out running costs?

From each model's typical official (WLTP where available) economy, 7,500 miles a year and current UK average prices. Real-world economy is usually 10–15% worse for every car, so the order holds even if the totals are a little low. Insurance, servicing and depreciation aren't included.

Sources: Vehicle Certification Agency car fuel data, © Crown copyright (VCA cannot accept liability for its accuracy); UK average fuel prices (today's UK average); manufacturers' UK price lists.