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True MPG: most and least efficient cars revealed

What Car?'s laboratory tests use a real-world driving route to show what fuel economy you can really expect. So, what are the best and worst performing cars?...

New Volkswagen Up vs Hyundai i10 vs Renault Twingo
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Steve Huntingford
19 Jan 2019 12:40

5. Volkswagen Up 1.0 75

True MPG 55.9mpg

Volkswagen's city car make a second appearance in the top 10, this time with the less powerful 74bhp 1.0-litre petrol engine. The Up has plenty of virtues, but if your top priority is saving money at the pumps, this is the version to go for.

Read our full Volkswagen Up review, or see what discounts are available


4. Seat Leon 1.6 TDI 110 Ecomotive

New Seat Leon vs Vauxhall Astra

True MPG 56.0mpg

The Leon is Seat's answer to the Ford Focus and Vauxhall Astra, and in addition to good real-world fuel economy, offers tidy handling and a long list of standard equipment. Just make sure you can live with its rather firm ride.

Read our full Seat Leon review, or see what discounts are available


3. Vauxhall Astra 1.6 CDTi 110 Ecoflex

2016 Vauxhall Astra 1.6 CDTi 110 Ecoflex review

True MPG 56.3mpg

In the past, we haven't rated the Vauxhall Astra particularly highly, but in its latest form the car is much more impressive. It has a lightweight construction which offsets the fact that most of its engines aren't as powerful as those you'll find in rivals. Plus, it's spacious and cheap to buy and run.

Suzuki Celerio 1.0

True MPG 57.8mpg

Despite being one of the cheapest new cars around, the Celerio comes with a decent array of equipment, including air conditioning, a DAB radio and Bluetooth connectivity. We also like the Celerio's 1.0-litre petrol engine, which is handy because it's the only option available.

Read our full Suzuki Celerio review, or see what discounts are available


1. Suzuki Ignis SHVS

Suzuki Ignis 2019 left cornering

True MPG 59.6mpg

The SHVS version of the Ignis, which is front rather than four-wheel drive, is the most efficient car we've ever tested. It's a mild hybrid, which means a small electric motor works alongside its 1.2-litre petrol engine, helping to get you moving and reducing the strain on the engine. Even if you decide four-wheel drive is a must, the average True MPG only drops to 53.3.

Read our full Suzuki Ignis review, or see what discounts are available


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