Electrified powertrains make important step in UK registration results

10 April 2026

Electrified and internal-combustion engine (ICE) powertrains split the UK new-car market after the first quarter of the year. But after another month of improvement, is the country’s current growth sustainable? Autovista24 special content editor Phil Curry examines the market.

The UK’s new-car market posted its strongest March result since 2019, as the country’s plate-change period helped boost overall volumes.

According to the latest data from the SMMT, 380,627 new cars made their way to customers last month. This was an increase of 6.6% compared to 2025, equating to an extra 23,524 units, according to Autovista24 analysis.

March is one of two important months for the UK market, the other being September. During these times, new registration plates are released, making deliveries more attractive. In March, new ‘26’ plates were released, with ‘76’ plates due in September.

In 2025, March was the strongest month of the year, accounting for 17.7% of the annual registrations total. With the SMMT highlighting that current geopolitical changes are likely to impact the market, the same pattern may occur in 2026.

Across the first quarter of the year, UK registrations are up by 5.9%, with 614,854 units delivered to customers. This is an improvement of 34,352 passenger cars, according to Autovista24 calculations.

Record results in the UK

March was the best month on record for electrified vehicles, according to the SMMT. This category includes full hybrids (HEVs), battery-electric vehicles (BEVs) and plug-in hybrids (PHEVs). A total of 196,059 units were delivered in the month, a 23.1% increase year on year.

Electrified volumes were also above ICE figures for the first time this year. The UK reports its ICE figures differently from other markets. Mild-hybrid powertrains are merged with their respective petrol and diesel counterparts, rather than being included with HEV figures.

The electrified market overtook the petrol and diesel group for the first time in September last year. However, it slipped behind once again at the start of 2026. March’s strong result may be the start of a period of dominance for the powertrain group.

After three months of the year, electrified passenger cars had overtaken ICE, thanks to their performance in March. With 307,652 registrations, the group was just 450 units ahead of the combined petrol and diesel performance. This was enough for a 50% market share.

BEVs continue to improve

BEVs were the second-best-selling powertrain type in the UK last month. With 86,120 deliveries, they made up 22.6% of the market. The figure was a record total for all-electric registrations, with volumes increasing 24.2% compared to March 2025.

March also saw the first year-on-year improvement in BEV market share of 2026. The technology’s hold rose by 3.2 percentage points (pp) to 22.6%. However, this was some way behind the required share in the zero-emission vehicle (ZEV) mandate.

This is emphasised further by the powertrain’s performance in the first quarter of the year. Deliveries have improved by 14.5%, with 137,614 units taking to the road. However, the market share of 22.4%, while 1.7pp higher year-on-year, is 10.6pp below the mandated target.

For 2026, vehicle manufacturers are required to ensure that 33% of their passenger cars registered in the UK are zero-emission models. Yet, the overall market has failed to meet the target in the first two years of the mandate.

Calls for review into UK transition

At the recent SMMT Electrified conference, chief executive Mike Hawes highlighted how the market had changed since the ZEV mandate was first proposed.

At the start of 2026, battery costs were more than 30% higher than expected, according to the SMMT. Furthermore, the industry body said that industrial energy prices are around 80% above 2021 levels. Additionally, it also noted how public charging can cost over 140% more than five years ago. 

Moreover, the SMMT has also highlighted that the current geopolitical situation, which is impacting oil prices, may spark interest in electric vehicles (EVs). Yet with a risk of higher energy prices and supply-chain costs, the increased cost of living could undermine consumer confidence.

These geopolitical changes have added urgency to the automotive market’s calls for a rapid review of the ZEV transition.

The SMMT has pointed to other markets, which have amended their plans to reflect current market realities. While the UK government holds firm, however, carmakers are having to invest heavily in both development and discounting to meet ZEV mandate targets.

‘Delays to a review of the UK transition will put the country in an uncompetitive position, undermining consumer choice, investment and, ultimately, the pace of decarbonisation,’ the industry body said in a statement.

PHEV popularity grows

While the debate about the electric transition continues, the UK’s PHEV market has been gathering strength. March saw the powertrain continue its run of strong results, with a 46.9% improvement year on year. This equated to 15,856 more units, based on Autovista24 analysis.

In total, 49,671 units made it to customers in the month, giving the technology a 13% market share. This is up by 3.5pp compared to a year prior.

The PHEV market has been boosted by the popularity of the Jaecoo 7, which hit the country’s market in February 2025. The Chinese brand has been building momentum, and was the most popular model in March. With 10,064 units registered in the plate-change month, it accounted for 20.3% of total PHEV deliveries.

In the first quarter, PHEVs have seen volumes increase by 46.5% compared to the same period in 2025. With 78,666 units, this offered the powertrain a 12.8% slice of the market, up 3.6pp. Again, the Jaecoo 7 has helped this growth, with 19.8% of the PHEV market. The SUV held second in the best-seller table, behind the Ford Puma.

Combining PHEV and BEV figures, the EV market saw a 31.7% rise in March, with 135,791 units. This was enough for a 35.7% market share, a rise of 6.8pp year on year. After three months, EV figures had improved by 24.4%, with 216,280 deliveries. The powertrain group took a 35.2% hold of total registrations.

ICE remains strong

While electrified models continue to see volume increases, deliveries of petrol and diesel cars suffered in monthly registration figures. Despite this, petrol remained the dominant force in the UK market during March.

The fuel type saw 165,997 units delivered to customers, a drop of 6.1% compared to the same month last year. Having seen a rare increase in volumes during February, this result was a return to a regular trend of decline.

Yet the powertrain still held 43.6% of the market. While this was a drop of 5.9pp, petrol remained 21pp ahead of its nearest challenger, BEVs.

Registrations of petrol-powered cars declined by 3.5% in the first quarter, with 276,689 units. Despite this, the technology still held 45% of the market, a 4.4pp drop.

Diesel popularity continued to wane, with March seeing figures fall by 11.4% to 18,571 units. This was only good enough for a 4.9% share of the market, down from the 5.9% recorded a year prior. Between January and March, diesel deliveries totalled 30,513 units, down 9.8%, equating to a share of just 5%.

Combining the powertrains, ICE registrations dropped 6.7% in the month with 184,568 units. This was good enough for a 48.5% share of total deliveries, falling behind the electrified market for the first time in 2026.

This means that after the first quarter, both ICE and electrified groups shared a 50% hold of the UK new-car market. With 307,202 registrations, the combined petrol and diesel grouping suffered a 4.2% delivery decline year-on-year.

HEV pulls ahead in UK hybrid race

HEVs continued to be the third-best powertrain in the UK during March. Its 60,268 registrations were enough for a 7.3% increase compared to the same period last year. However, its 15.8% market share was up just 0.1pp compared to March 2025.

After the first quarter, the powertrain has seen a 6.2% rise in volumes, with 91,372 deliveries. This was good enough for a 14.9% slice of overall new-car registrations. Yet with stronger growth for PHEVs and BEVs, the powertrain’s market share only rose by 0.1pp year on year. The unit gap between HEVs and PHEVs has risen, thanks to the better volume total in March for full hybrids. But with plug-in hybrids increasing in popularity, the technology could close the gap in the coming months.