The Toyota Aygo and Suzuki Swift are ranked as the most reliable used superminis (using data from 2022-25) according to the leading UK used car warranty provider, Warrantywise.
With superminis continuing to dominate the UK’s used car market, Warrantywise has revealed which models are the most dependable in its latest Reliability Index. The UK’s leading extended car warranty provider has named the Toyota Aygo and the Suzuki Swift as the most reliable used superminis, each earning an impressive score of 88.6/100.
In a used car market shaped by rising costs and ageing vehicles, the supermini class is proving to be a haven for sensible buyers. These small cars offer low running costs, accessible pricing, and, in many cases, impressive longevity. It’s no surprise they remain the UK’s most popular type of used car1, accounting for one in three (32.3 per cent) of all used cars sold in 2024. From first-time buyers to city dwellers and downsizers, superminis are a go-to option for drivers who want dependable transport without the hefty bills – and this new data proves they’re right to feel confident in their choice.
As the second best-selling new car class in the UK2, too, superminis continue to show their strength – and Warrantywise’s Reliability Index now highlights the top ten most reliable models. The rankings are based on the frequency of faults, average age and mileage at the time of repair, and how long those repairs typically take to complete. For consistency, Warrantywise has also categorised the superminis in line with Euro NCAP classifications (The European New Car Assessment Programme)3 – a widely recognised standard across Europe that helps ensure comparisons are made between like-for-like vehicles.
Alongside the Toyota Aygo and Suzuki Swift at the top, the Kia Picanto takes a strong third place with 86.8/100, followed closely by the Citroën C1 (82.8/100) and Peugeot 108 (80.3/100). The Renault Clio also secures joint sixth place with the Ford KA, both scoring a respectable 79/100. In eighth is the Hyundai i10, scoring 78.4/100, followed by the Dacia Sandero in ninth (77.8/100), and in joint tenth are the Hyundai i20 and MINI Cooper, both scoring 75.9/100.
Antony Diggins, Managing Director of Warrantywise, said: “Our latest data backs up what many drivers already know – superminis are one of the safest bets you can make in the used car market. They’re affordable, efficient, and, as our research shows, can be remarkably reliable. At a time when people are being more careful with their money, it’s reassuring to know that you don’t have to spend big to get a dependable car.
“With a number of these superminis not requiring major repairs until they’re nearly a decade old, and many models showing excellent cost-per-mile performance, they are an especially wise buy in today’s market. That said, no vehicle is perfect, and issues can happen, so we always encourage drivers to protect themselves with a comprehensive warranty – especially as labour and parts costs continue to rise.”
What’s especially impressive is how long many of these cars can go before they even need repair. Over 60 per cent of the vehicles in the top ten don’t show any faults until they’re at least eight years old4. Standouts include the Suzuki Swift and the Ford KA, averaging 8.7 years and nine years, respectively, before their first repair. It’s proof that superminis – often seen as entry-level or short-term cars – are more than capable of delivering long-term value.