Honest John Satisfaction Index 2021: Most reliable car brands

Reliability is one of the most important factors for car buyers, but which manufacturers do owners rate as the most dependable? We've rounded up the top 10 from the Honest John Satisfaction Index 2021. 

Each owner was asked to give a score out of 10 with more than 5,000 readers taking part in this year's survey. 

>>> The Honest John Satisfaction Index 2021 results in full



Reliability average score: 9.81

If you're in the market for a reliable premium car, then look no further than Lexus. The Japanese manufacturer has upped last year's average score of 9.69, which saw it top last year's table of reliable car brands. The brand specialises in crossovers and hybrids, and has launched the full electric UX 300e this year.  

Read all Lexus reviews 



Reliability average score: 9.76

Renault's budget brand makes it to the number two spot of the most reliable car brands in this year's Honest John Satisfaction Index, up from fourth in 2020. The Sandero was rated as one of the most reliable cars and it also scored well for practicality, which means it ticks two important boxes for car owners. Prices start at just £7,995 for the Sandero meaning you can have reliable motoring for the price of a second-hand alternative.

Read all Dacia reviews



Reliability average score: 9.64

Mitsubishi didn't make the top 10 last year but takes third place in this year's listing of reliable car brands, with an impressive score of 9.64. Earlier this year it was revealed that the Japanese manufacturer won't be introducing any new models to the UK as part of plans to cut costs. But there is still full customer support in terms of service, repair, warranty, recalls, parts and accessories. 

Read all Mitsubishi reviews



Reliability average score9.63

It's no surprise to see Japanese car manufacturer Toyota in our top 10 for reliability. The brand is known for its ultra-efficient manufacturing process and building dependable cars. It has upped last year's score of 9.47 to 9.63. The Yaris made it into the top 10 most reliable cars while its family hatch, the Corolla, features in our top 10 most comfortable cars.

Read all Toyota reviews 



Reliability average score: 9.59

Japanese brand Suzuki continues to be rated as one of the most reliable car brands by HonestJohn.co.uk readers and has slightly upped its score from last year's 9.51. Its partnership with Toyota, which is also a stalwart in our top 10, has seen it add the Swace (based on the Corolla) and its first plug-in hybrid vehicle, the Across, (based on the RAV4) to its line-up.

Read all Suzuki reviews



Reliability average score9.54

Kia has a reputation for great value cars, backed by the brand's seven-year or 100,000-mile warranty, which is fully transferable. It has upped its reliability average score from 9.31 last year to 9.54 this year. The Sportage was rated one of the most reliable cars in this year's Satisfaction Index and Kia's latest model, the EV6, which is it's first fully electric car and shares many of the same features of sister brand Hyundai's Ioniq 5, is sure to add to its appeal. 

Read all Kia reviews



Reliability average score9.51

Continuing to uphold the Japanese reputation for making reliable cars, Honda is once again one of the most reliable car brands, upping its score from 9.36 last year to 9.51 this year. The Jazz (2015-2020 model) topped our listing of most practical cars and made it into the top 10 for reliabilty while the CR-V also features in the most comfortable and most practical categories. 

Read all Honda reviews



Reliability average score: 9.50 

Last year Subaru made it into the top 10 in tenth, this year it reaches a well-deserved ninth with an average reliability score of 9.50. As we noted last year, the brand's biggest challenge is that owners like to keep their Subarus forever rather than trade up for a newer model, which is testament to their reliability. 

Read all Subaru reviews



Reliability average score9.48

A new addition to this year's top 10 most reliable car brands, MG is another buget brand which has proved dependable for car buyers, with an average reliability score of 9.48. Under Chinese ownership, it's now carving its own niche as a maker of affordable electric vehicles.

Read all MG reviews



Reliability average score9.48

Hyundai is another affordable brand that scores highly in the Honest John Satisfaction Index 2021, proving that you don't have to spend a fortune to have a reliable car. All Hyundai models come with a five-year, unlimited mileage warranty, which is a sign of confidence from the Korean brand.

Read all Hyundai reviews