The best and worst cars for fuel economy- You could save yourself £836 a year

If you’re considering buying a car, it’s more important than ever that you know how much it’s going to cost you to run – especially if it’s for frequent use. Car owners are today having to shell out £9.53 more to fill up an average family hatchback compared to 12-months ago, diesel drivers meanwhile, are paying £11.69 a tank more. Those in the market for a car right now, are being warned to shop around for not only the cheapest deals in the market, but also the most fuel efficient models – which will save you pounds on your commute and school run.

To help with your car hunt, the consumer experts at Which? have revealed the motors to avoid if you’re after a runaround – that won’t rinse out your wallet.

We’ve teamed the findings up with car sellers Carwow – to reveal the most fuel efficient models on offer – and you could save as much as £836 a year.

They found the most efficient car to be the Suzuki Celerio. It isn’t just one of the most affordable cars on sale but it’s incredibly fuel efficient, too – 1.0-litre Dualjet models can return 78.5mpg.

It doesn’t feel particularly upmarket inside but it’s roomier than rivals from VW and Skoda and comes with a fair amount of equipment as standard.

The least fuel efficient car was found to be the Vauxhall Adam Rocks. The Adam Rocks is Vauxhall’s little bundle of fashionable fun. It’s the SUV/crossover-esque version of the regular Adam city car – but you’ve been warned, it’s not cheap to run.

An average year will see its owner fork out a huge £867 on petrol – around £200 more than its cheaper counterpart.

Fuel efficient cars have many benefits, not only to the driver but also to the environment. Not only do you get better gas mileage, they also produce lower emissions and make us more energy sustainable.