Showing 1 - 10 of 100 results for "Reliability Assessments"
Which? urges car makers to up their game on reliability as new research reveals electric vehicles are the most fault-prone fuel type

Which? is calling on car manufacturers to improve the reliability of electric vehicles (EV) after the consumer champion found EVs are the least reliable fuel type and spend longer off the road than other cars when they need repairs

How we test cars

Every car we review is subjected to hundreds of tests in our lab and on the road. Find out why you can trust our reviews, and how they help you choose the best car (and avoid the worst)

Revealed: the older cars with stellar reliability

Buying an older car needn't be a lottery. Our data shows that there are many decade-old cars out there that should offer years of trouble-free motoring

Most reliable car brands for 2026

Looking for a reliable car? Based on a survey of over 70,000 cars, we can reveal the most and least reliable car brands

Building trust: improving the reliability of installers in sustainable home heating

Over the next two decades, households will have to make significant changes to the way that they heat their homes in order to meet the UK's net zero commitments. Installing new heating and insulation can be costly and complex so it is important that consumers can easily find reliable and qualified installers. This report calls for the government to introduce mandatory certification of installers in these markets to make the process of choosing an installer easier, improve the quality of installations and protect consumers from harm

Most reliable cars for 2026

Looking for a car that won't let you down? Whether you're after a new or used model, our unique survey of more than 70,000 cars reveals the most reliable vehicles in the UK

Our surveys

Your views play a vital role in shaping our articles, research and campaigning work, helping us focus on the issues that matter most

How we assess boilers

Find out more about how Which? assesses boiler brands to reveal the best and worst boilers

Best tablets for 2026: tested and reviewed by experts

Whether you're after an iPad, Amazon Fire, Samsung Galaxy Tab, Android or Windows model, we'll help you find the best tablet based on budget, size, screen quality, battery life and more

Glow-worm boilers review

Glow-worm boilers are budget-friendly, but should you buy one? Which? research reveals how reliable Glow-worm gas boilers are – and what engineers and customers say about them.