Which? Car Survey Which? Car Survey explained

The Which? Car Survey is the biggest and best in Britain. It gives real owners the chance to say what they love - and hate - about their cars.

 

Please enable JavaScript to access this content.

Which? Car Survey steering wheel

The Which? Car Survey is the biggest survey of car reliability and satisfaction in the UK

What is the Which? Car Survey? 

A great car must do much more than excel in the Which? Car road test. It must also impress a legion of everyday experts – car owners. Here’s how we factor in your feedback when scoring cars.

Our car survey is open for anyone to complete between December and March each year, via the Which? website, and has been the UK's largest survey of car reliability since 2007.

And our survey is unique because we ask about cars of all ages. That means, whether you’re buying a brand-new car or a banger, our comparative owner feedback will help you make a better choice.

To give you a truly comprehensive picture of what a car will be like to live with, we take also take owner satisfaction into account when rating car models. So, if a car has suffered with lots of problems, and dealers haven't been helpful, it is likely to lose points of its overall score. 

When manufacturers ask why a car has scored poorly in the survey, we share as much detail as we can to help them get to the root of a problem. So these results not only help us compare different cars, they also give carmakers a reason to keep evolving and improving their products.

Family suffering with an unreliable car

We can tell you which cars could leave you stranded by the side of the road

Tested by us, rated by you

The Which? Car Survey helps us to fulfill the second part of our promise to consumers. While we cover the 'Tested by us' part of our tag line by conducting unbiased and comparable lab and road tests of hundreds of cars each year on UK roads, we don't get to live with the cars all year round as owners do.

Instead we ask you how dependable and enjoyable your cars have been to live with. The feedback we get from real car owners is used to complete the 'rated by you' part of our research, meaning potential buyers will get an educated and in-depth understanding of how good a car will be to own from people who are already doing just that.

We welcome all feedback on all cars available in the UK, and every piece of information you give us becomes part of the overall rating for each car. 

And not only do you get to influence the scoring for a car that you've owned by filling in our survey, it's free to do it. 

If you own more than one car, you can tell us about each one separately, and we offer a cash prize to one lucky entrant each year.

Family being recovered at the side of the road after breaking down

Let us know about your experiences so we can use them to help other consumers

Car reliability by class

A car that won’t leave you stranded is pretty high up most on people’s wish list, even if dependability isn’t the sexiest aspect of car ownership. 

As well as offering an overall reliability rating for cars, you can also find out which are the most common faults for each model by accessing the car review on our site.

Obviously, some cars can become less reliable over time, so, by conducting the car survey annually, we update our ratings every year to let you know if a car is becoming less dependable over time.

To take a closer look at summarised reliability ratings for all cars according to class, check our Most reliable new cars of 2011 report.

We've also rated the Most reliable used cars.

Woman driver thumbs up

We want to know what you love about your cars, as well as hate

Owner satisfaction with cars

Satisfaction counts for an awful lot when it comes to customer loyalty – a happy owner is likely to buy another car from the same manufacturer, and wholeheartedly recommend it to others. 

That’s precisely why our survey asks owners to rate (out of five) how satisfied they are with their car, and also how likely they are to recommend it to a friend. By combining the response to these two questions, we’re able to award each car a Customer Score out of 100%. 

This is a standard measure of satisfaction that is used by Which? for rating everything from energy companies to retailers, and it works equally well for cars. The average Customer Score in this year’s car survey is 79%, so look for models that score better than this if you want to find the best ones to own.

To get a summary of the most satisfying cars and brands results from our latest car survey, you can find them all in our Owner satisfaction pages.

And before you do buy a car, check out our  in-depth, independent Car reviews and read our guide to Buying a car.

Latest Which? Car magazine cover

Which? Car magazine

In the latest issue we investigate car recalls and reveal how to cut the cost of motoring.

About Which? Car magazine

Which? Car podcast

Listen to our FREE 10-minute digest of all the latest car news and reviews every month.

Listen to a podcast now

Which? car news and Twitter feed

Sign up for the latest car news, reviews and hot deals in your newsletter every Friday. Also, follow Which? Car Insider on Twitter

Which? works for you