Petrol vs Hybrid vs Electric: What Are UK Drivers Actually Choosing in 2026?

Diesel reached an average of 199.18p a litre on 28 September, the highest price ever recorded in the UK, according to RAC Fuel Watch. Petrol prices have climbed sharply too, since the conflict involving the US and Iran pushed up global oil prices.

Higher fuel bills have put the petrol vs hybrid vs electric question at the top of many buying lists this year. Drivers who once chose petrol out of habit are now comparing what each type of car really costs to run. Official registration figures show more of them choosing electric and plug in hybrid models. Even so, petrol is still the most popular single choice for a new car in the UK.

That mix shows there is no single right answer for every driver. The best choice depends on where you park overnight, how far you drive each week and how long you plan to keep the car.

This guide explains what UK motorists are buying in 2026, what each type costs to run and which rules could affect your next purchase. It begins with the cost pressures behind this year’s shift.

Why 2026 Has Made Choosing a Car So Tricky

The cost of running a car has moved in two very different directions this year. Filling up at the forecourt has become much more expensive, while charging at home costs roughly what it did before. That widening gap is prompting many drivers to rethink what they buy next.

Pump Prices Have Surged

Petrol drivers have felt the squeeze as well as diesel owners. RAC Fuel Watch, which tracks average prices at UK forecourts, put unleaded at 174.13p a litre on 28 September. That was 41p a litre more than when the conflict began, so every tank now costs noticeably more than it did earlier in the year.

Relief at the pumps may be slow to arrive. Fuel duty is the tax included in the price of every litre, and the government’s temporary cut to it is still due to be reversed. If that goes ahead as planned, pump prices would rise further.

Home Electricity Has Held Steady

Electricity prices have stayed far more stable for households. Ofgem, the energy regulator for England, Scotland and Wales, sets a price cap that limits what suppliers can charge customers on standard variable tariffs. From October to December 2026, the cap puts electricity at an average of 26.32p per kWh, almost the same as the summer rate.

Anyone charging at home also benefits from a tax break. The government has removed VAT from household electricity bills until 31 March 2027. That makes every unit used to charge an electric car on the driveway cheaper than it would otherwise be.

What UK Drivers Are Actually Choosing in 2026

To see how the petrol vs hybrid vs electric split really looks, it helps to study three groups separately: new car buyers, company car drivers and used car buyers.

New Car Registrations: Electrified Cars Now Lead

SMMT is the industry body that publishes official new car registrations, and its figures show petrol is still the biggest single choice. Petrol took 41.5% of new cars between January and September 2026, about two in every five, down from 47.5% a year earlier. Electric cars followed with 26.2%, then plug in hybrids on 14.1% and full hybrids on 13.8%. Together, those three electrified types now make up more than half the new car market.

September is when new number plates go on sale, and it is when that record electric total was set. Plug in hybrids also reached a record 17.0% share that month. Wider choice is helping, with 178 electric models now on sale, more than double the 2023 count.

One detail is worth knowing when reading these figures. SMMT counts mild hybrids as petrol cars. A mild hybrid has a small electric motor that assists the engine but cannot drive the car alone, so some petrol sales already include a little electric help.

How Company Car Tax Is Speeding Up the Switch

Fleet buyers, such as businesses and leasing firms, registered 54.5% of new cars in September, so their choices shape the headline figures. Their drivers pay company car tax, known as Benefit in Kind, which is based on the car’s list price and emissions. For electric cars the rate is just 4% in 2026/27. A basic rate taxpayer with a £40,000 electric company car therefore pays around £320 a year. For many employees, the hybrid v s electric car choice leans firmly towards electric. Private demand grew too, rising 13.9% in September.

Used Electric Cars Are Gaining Ground

Most UK drivers buy second hand, so the used market shows what everyday motorists can afford. Just over two million used cars were sold between April and June 2026, according to SMMT. Petrol and diesel made up 86.7% of them, close to nine in ten. Even so, used electric cars are growing fastest. Their sales rose 67% to 110,761, with the sharpest growth in April and May as fuel prices climbed. Used full hybrids rose 31.2%, while used plug in hybrids fell 6.8% despite record new sales.

Petrol vs Hybrid vs Electric: Strengths and Trade Offs

Each type suits a different driving pattern. Here is what to expect from each one day to day.

• Petrol: Usually the cheapest way into a new or used car. Refuels are quick and filling stations are everywhere, which suits rural drivers and anyone without a driveway. The catch is that running costs rise and fall with oil prices.
• Mild hybrid: A petrol car with a small 48 volt system that helps the engine pull away and smooths stop start driving. It cannot run on electricity alone, so treat it as an efficient petrol car.
• Full hybrid: Often sold as a self charging hybrid because it never needs plugging in. Braking and the engine recharge its battery, letting it drive on electric power at low speeds. That makes it most efficient in town.
• Plug in hybrid: A bigger battery covers short trips on electricity before the petrol engine takes over. Charged nightly, it handles most local driving without fuel. Rarely charged, it becomes a heavy petrol car with poor economy.
• Electric: The lowest running costs if you charge at home, plus fewer parts to service. When comparing the best electric cars to buy in the UK, consider real-world range, especially in colder weather. Public rapid charging also costs more than charging at home, making access to a driveway or home charger an important factor.

What Each Powertrain Really Costs to Run

The showroom price is only the start. Fuel, electricity and car tax all add up over the years you own the car.

Petrol Car Running Costs Versus Electric, Mile for Mile

Take the late September petrol price of 174.13p a litre and the capped home electricity rate of 26.32p per kWh. On those prices, typical cars compare like this:

• Petrol: A car averaging 45 miles per gallon (mpg) costs about 17.6p a mile to fuel.
• Full hybrid: A car averaging 55 mpg costs about 14.4p a mile.
• Electric: A car covering 3.5 miles per kWh (the unit shown on your electricity bill) costs about 7.5p a mile.

A plug in hybrid sits in between, depending on how many of its miles are electric.

Over 8,000 miles a year, that is roughly £1,410 for petrol, £1,150 for the full hybrid and £600 for the electric car. The planned 2028 pay per mile charge would add about £240 at that mileage, and the EV would still cost less to run. Overnight EV tariffs can cut home charging costs further. Relying on public rapid chargers can wipe out much of the saving. Your own figures will vary with your car, tariff and driving.

Do Electric Cars Pay Car Tax in 2026?

Yes. Electric cars have paid car tax, officially called Vehicle Excise Duty, since April 2025. After the first year, almost every car registered since April 2017 pays the same £200 a year.

The main difference is the Expensive Car Supplement, an extra £440 a year for five years on pricier cars. It applies to new electric cars above £50,000, but to petrol and hybrid cars above £40,000. A new EV listed at £45,000 therefore avoids £2,200 that a petrol car at the same price would pay.

From 1 April 2028, the government also plans a pay per mile EV tax. Electric cars pay no fuel duty, so the charge is designed to make up for some of that lost tax. Plug in hybrids pay half the rate because they still pay duty on the petrol they burn. Draft legislation was published in July 2026, but it is not yet law.

Car Tax and Deadlines at a Glance

The table below brings the key tax rules and sales deadlines for all five types together. First year rates for petrol and hybrid cars depend on CO2 emissions and range from £115 to £5,690.

Powertrain	First year car tax	Expensive Car Supplement starts at	Pay per mile from April 2028	New sales allowed until
Petrol	Based on CO2	£40,000	None	2030
Mild hybrid	Based on CO2	£40,000	None	2030
Full hybrid	Based on CO2	£40,000	None	2035
Plug in hybrid	Based on CO2	£40,000	1.5p a mile	2035
Electric	£10	£50,000	3p a mile	No end date

How Does the Electric Car Grant Work?

The Electric Car Grant was introduced in July 2025. It is a government discount on new electric cars priced at £37,000 or less. Models made to the highest sustainability standards get £3,750 off, judged on factors such as where the battery is built. Other eligible cars get £1,500. The dealer applies the discount at the point of sale, so there is nothing to claim yourself. Eligible models change regularly, so check the current list on GOV.UK before ordering.

The 2030 Petrol and Diesel Ban and What Comes Next

These rules matter most if you keep cars for years or care about resale value. Some dates are fixed, but the targets behind them are under review.

Will Petrol Cars Be Banned in 2030?

Only new ones. From 2030, carmakers can no longer sell new cars that rely solely on petrol or diesel, and that includes mild hybrids. Full hybrids and plug in hybrids can be sold new until 2035, after which every new car and van must be zero emission. Cars already on the road can still be driven, bought and sold as normal.

Why the ZEV Mandate Review Matters to Buyers

The zero emission vehicle (ZEV) mandate sets the share of zero emission cars each carmaker must sell every year. The 2026 target is 33%, yet electric cars stood at 26.2% after nine months. SMMT says closing that gap would need around 265,000 extra electric registrations in the final quarter, even with the flexibilities built into the rules. That pressure helps explain today’s generous EV discounts.

A government consultation on the targets for 2027 to 2035 runs until 23 October 2026, so discounts could change next year. The 2030 and 2035 deadlines stay in place.

Which Suits You Best? Matching Petrol, Hybrid and Electric to Your Driving

A few practical questions about your routine will settle most hybrid vs electric car debates. They will also show whether petrol still makes more sense.

• Where you park overnight: A driveway or garage lets you fit a home charger, giving an EV or plug in hybrid its lowest running costs. If you park on the street, a full hybrid avoids relying on public chargers.
• How far you drive each week: Short local trips suit electric or full hybrid power. Regular motorway runs work in an EV with planned charging stops, though petrol still refuels fastest.
• How long you keep a car: If you change cars often, weigh resale demand, which is rising for used electric cars and full hybrids. If you keep cars for many years, factor in the 2028 mileage charge and future fuel prices.
• Towing and heavy loads: Towing a caravan or trailer can cut electric range sharply. Check the towing limit and real world range before you order.
• Buying second hand: Ask for a battery health report on any used EV or hybrid and check how much battery warranty remains. Give it the same attention as a petrol car’s service history.

Your buying route can shift the sums as much as fuel type, so it is worth comparing new, used and nearly new options before you commit.

Choosing the Drive That Fits Your Life

The petrol vs hybrid vs electric decision has no single winner in 2026, and the figures show why. Electrified cars now make up more than half of new car sales, company car drivers are switching fastest and the used market is following at its own pace. Petrol still makes sense for plenty of drivers, especially those with nowhere to charge. 

Let your parking, your mileage and how long you keep a car guide your choice. Then test drive each type and run the numbers using your own fuel bills and energy tariff. 

For more practical buying guides and the latest UK motoring news, keep Auto Square bookmarked as you plan your next move.