Used EV vs hybrid vs plug-in hybrid: which should you buy?

Car Tips/Hacks10/28/2026

Used EV vs Hybrid vs Plug-in Hybrid - Which to Buy? | Rooster

If you can charge at home, a used electric car is usually the cheapest to run. If you can’t, a full hybrid is often the safer bet: no charging needed, strong economy around town and no new pay-per-mile tax. A plug-in hybrid only makes sense if you will charge it regularly and do most of your driving within its electric range.

This guide compares the three on running costs, tax, practicality and reliability, and sets out who each one suits.

Last updated 27 October 2026. Prices and tax rules come from Ofgem, Zapmap, GOV.UK and the SMMT (see the sources at the end). Tax rules may change at the Autumn Budget on 28 October 2026.

Key takeaways

An EV charged at home on an EV tariff costs around 2p a mile to fuel.
A full hybrid returning 55mpg costs about 14p a mile at current petrol prices.
A plug-in hybrid can be as cheap as an EV on short trips, but often less efficient than a hybrid once the battery is flat.
From April 2028, EVs will pay 3p a mile and plug-in hybrids 1.5p a mile in a new tax. Full hybrids won’t.
Used hybrid sales rose 31% in the second quarter of 2026, while used plug-in hybrid sales fell.

The three types explained

Battery electric (EV). Runs only on a battery that you charge from a plug. No petrol engine.
Full hybrid (HEV), often called “self-charging”. A petrol engine and a small battery and motor. It charges itself through braking and the engine and can drive short distances on electric power at low speed. You never plug it in.
Plug-in hybrid (PHEV). A petrol engine plus a larger battery that you charge from a plug, typically giving around 30 miles of electric driving before the engine takes over.

Our guide to hybrid cars explained covers mild hybrids too.

Running costs compared

These figures assume petrol at about 174p a litre, home electricity at the standard price cap rate of 26.32p/kWh or an overnight EV tariff of around 7p/kWh, and an EV that does about 3.5 miles per kWh.

Car type and how it’s fuelled	Approx. cost per mile
EV, home overnight EV tariff	About 2p
EV, home standard rate	About 7.5p
EV, public rapid chargers (79p/kWh)	About 24p
Full hybrid at 55mpg	About 14p
Plug-in hybrid on electric, charged at home	About 2p to 7.5p
Plug-in hybrid on petrol with a flat battery, at 40mpg	About 20p
Petrol car at 45mpg	About 17p

The message is simple: the EV wins clearly if you charge at home, and loses if you rely on rapid chargers. A plug-in hybrid is cheap only when it is charged; run on petrol it can use more fuel than a full hybrid because it is carrying a heavy battery.

Tax compared

	EV	Full hybrid	Plug-in hybrid
Standard car tax (2026/27)	£200 a year	£200 a year	£200 a year
Expensive car supplement threshold	£50,000 list price for EVs registered from April 2025, otherwise £40,000	£40,000	£40,000
Pay-per-mile tax from April 2028	3p a mile	None	1.5p a mile
ULEZ and clean air zones	Exempt	Usually compliant if petrol	Usually compliant if petrol

For a driver covering 10,000 miles a year, pay-per-mile would add about £300 for an EV and £150 for a plug-in hybrid. Even with that, the EV still costs far less per mile than a hybrid if charged at home. See eVED pay-per-mile explained and how much car tax costs in 2026/27.

Practicality and reliability

Range and refuelling. Hybrids and plug-in hybrids refuel in minutes anywhere. EVs need planning on long trips, though the UK now has more than 124,000 public chargers.

Towing. Many hybrids and plug-in hybrids can tow; EVs can too, but towing cuts range sharply.

Maintenance. EVs have the fewest parts to wear out. Full hybrids, especially Toyota and Lexus models, have a strong reliability record. Plug-in hybrids have the most complex drivetrains, with both a full engine and a large battery to maintain.

Batteries. EV battery degradation is about 2.3% a year on average. Hybrid batteries are small and usually covered by long warranties. Check what is left on any used car.

Insurance. EVs usually cost a little more to insure because repairs are pricier. Get quotes for the specific cars you are comparing.

What used buyers are choosing

In the second quarter of 2026, the SMMT reported used EV sales up 67% and used hybrid sales up 31.2%, while used plug-in hybrid sales fell 6.8%. Rising fuel prices pushed many buyers towards electric and hybrid cars.

Which should you buy?

Choose a used EV if you can charge at home or work, mostly drive under 150 to 200 miles a day, and want the lowest running costs. Start with should you buy a used electric car?

Choose a full hybrid if you can’t charge at home, do a lot of town driving, and want good economy without changing your habits.

Choose a plug-in hybrid if you can charge at home, most of your journeys fit within its electric range, and you also need to do long trips or tow regularly. Only buy one if you will actually plug it in.

Frequently asked questions

Is a used hybrid better than a used EV?

It depends on charging. If you can charge at home, an EV is usually cheaper to run. If you can’t, a full hybrid is often the better all-round choice.

Are plug-in hybrids worth buying used?

Only if you will charge them regularly. Driven mostly on petrol, they can be less economical than a full hybrid.

Will hybrids pay the new pay-per-mile tax?

Full hybrids and mild hybrids won’t. Plug-in hybrids will pay 1.5p a mile from April 2028, and EVs 3p a mile.

Which is cheapest to insure: EV, hybrid or plug-in hybrid?

It depends on the model and your details more than the fuel type, but EVs often cost a little more because repairs are more expensive.

Sources and further reading

About this guide: Rooster is a UK car insurance provider. This guide is general information for UK drivers, not financial advice. Running costs depend on the exact car, your energy tariff and how you drive, so run the numbers for your own situation.

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