Every year Autocar’s sister title What Car? carries out a survey of car-owners to help identify the most reliable cars on the market – and the least.
The survey is based on the experiences of over 32,000 owners over the past two years - and is a great way to help you choose your next car if you want low hassle and low maintenance costs. Let’s take a look at the cars who came top – and bottom:
Small Cars - Most reliable
1: HYUNDAI i10 (2020+) - 100%
The i10 is just one of just four cars to achieve a 100% reliability rating. That means not one of the cars owners told us about suffered any faults at all in the previous 24 months.
Also highly rated:
Toyota Aygo X (2022+) - 99.7%
Mini Hatch (2014-2024) - 99.1%
Small Cars - Least reliable
1: Renault Zoe (2013-2024) - 85.1%
With a fault rate of 39% and a high proportion of problems reported with EV batteries, the Zoe is one to avoid if you’re after a reliable small EV. Owners also told us their cars had suffered problems with their 12-volt batteries, air conditioning and other electrical systems.
Also lowly rated:
Opel Corsa Electric - 87.6%
MG 3 - 87.9%
Family Cars - Most reliable
1: Kia Ceed (2018-2025) - 98.8%
Kia’s family hatchback may not be the last word in driver involvement or sophistication, but it is the most dependable choice in this class. Owners told us that only 8% of Ceeds had any issues, with the sat-nav/infotainment system being the only area of concern.
Also highly rated:
BMW i3 (2013-2022) - 97.4%
Honda Civic (2022+) - 97.3%
Family Cars - Least reliable
1: Hyundai Ioniq Electric (2016-2022) - 80.1%
EV and 12-volt battery issues have blighted the Ioniq Electric. The EV battery was the cause of 18% of issues and the 12-volt unit was responsible for 29% of faults. Together, they rendered 80% of affected vehicles undriveable. Repair work was slow in many instances, too; 70% of cars were in the workshop for more than a week, and we were told that some were out of action for several weeks due to parts supply issues.
Also lowly rated:
Hyundai Ioniq 5 (2021+) - 80.7%
Volkswagen Golf (2020+) - 82.2%
Executive cars - Most reliable
Alfa Romeo Giulia (2016+) - 98.2%
Only 9% of the Giulias that owners told us about suffered any glitches, and all those that did were put right for free. Problem areas included the bodywork, brakes, interior trim and non-engine electrics, but three-quarters of the affected cars could still be driven.
