UK used car transactions were up by 2.8% year-on-year in the third quarter of 2025.

The data has been revealed by the Society of Motor Manufacturers and Traders (SMMT), which said it represented the best Q3 since 2021, and marked 11 consecutive quarters of growth.

In terms of fuel mix, EVs saw the strongest growth, with transactions up by 44.4% year-on-year – though this still accounted for only 4% of the overall market.

Hybrids were up by 30%, for a 5.3% market share, and plug-in hybrids were up by 2%, taking 1.2% of the market.

Petrol car transactions rose by 1.9%, while diesels were down by 2.8% – between them they still account for 89.2% of the used market.

SMMT chief executive Mike Hawes said: “With used EV uptake at a record high, a robust used car market is essential for fleet renewal, and helps make electrified mobility more accessible for more motorists. 

“However, overall consumer choice and affordability are at risk if the government scraps Employee Car Ownership Schemes, a move that would stifle supply of the very latest vehicles into the used market and cut Exchequer revenue. 

“Britain needs fiscal policy that promotes rather than prevents economic growth, social mobility and decarbonisation.”  

Cox Automotive insight director Philip Nothard said: “The used car market’s Q3 performance, surpassing two million transactions, reflects underlying resilience, yet the sector faces a challenging end to the year. 

“Retailers continue to navigate margin pressures and limited stock in key age segments, while ambiguity around future electric vehicle taxation is causing some buyer hesitation. T

“The strong EV growth signals progress, but stability in Q4 will depend on government clarity and consumer confidence amid economic challenges.”