Mercedes named UK's most reliable car brand in 100,000-driver survey

Mercedes has emerged as the UK's most reliable car manufacturer in one of the country's largest owner surveys, with more than 100,000 motorists rating the dependability of the vehicles they live with every day. At the other end of the table, Dacia was ranked the least reliable brand, highlighting the growing gap between premium and budget manufacturers in owners' real-world experiences.

The findings come from the 2026 Driver Power survey, an annual poll that asks British drivers to score their cars across multiple ownership categories, including reliability, build quality and overall satisfaction. Rather than measuring laboratory tests or warranty claims, the rankings reflect owners' long-term experiences with their vehicles.

Mercedes claimed first place with a reliability score of 92.42%, followed closely by Volvo, Mazda, Honda and Toyota. The results suggest that established manufacturers with strong reputations for engineering consistency continue to perform well, even as the market rapidly expands with electric and hybrid models.

Tesla finished seventh overall, while Skoda, Vauxhall and Peugeot completed the top ten. The strong showing from Tesla stands out given the brand's mixed performance in previous reliability studies, reflecting improving owner confidence in its latest models.

The UK's most reliable car brands

1. Mercedes (92.42%). Premium brand praised for dependability and owner satisfaction.

2. Volvo (91.43%). Swedish manufacturer continues its strong reliability reputation.

3. Mazda (91.26%). Consistently high owner ratings for build quality and durability.

4. Honda (90.31%). Japanese reliability remains a major selling point.

5. Toyota (90.00%). Completes the top five with another strong owner performance. Budget brands struggle

The lower end of the rankings paints a different picture. Dacia finished 30th out of 30 manufacturers, narrowly behind MG and Citroën, while Cupra and Volkswagen also ranked among the weakest performers for reliability. According to the survey, owners of these brands were more likely to report faults and lower satisfaction with long-term dependability.

Although Dacia has built a loyal customer base through affordable pricing and strong value-for-money credentials, the results suggest buyers may be accepting greater reliability compromises in exchange for lower purchase costs. Auto Express

Electric cars continue to change perceptions

The survey also points to a shifting narrative around electric vehicles. The Tesla Model 3 was named the UK's most reliable individual model, outperforming popular petrol and hybrid rivals including the Volkswagen T-Roc and BMW 1 Series. Owners gave particular praise to its reliability, low running costs and day-to-day usability.

Industry analysts caution that reliability surveys can produce different winners because each uses its own methodology. While Driver Power relies on owner satisfaction from more than 100,000 respondents, other UK studies such as What Car? and Which? weigh repair costs, fault severity and time spent off the road differently. Even so, Japanese manufacturers including Honda and Toyota consistently feature near the top across multiple surveys, reinforcing their long-standing reputation for durability.

For consumers facing high vehicle prices and rising repair bills, reliability is becoming as important as styling or performance. The latest rankings underline a simple reality of today's car market: the brands that keep drivers on the road, and out of the garage, are increasingly the ones earning the strongest customer loyalty.