True MPG: best and worst SUVs 2018

What Car?'s True MPG tests show what you can really expect from a car. Here we reveal the most and least efficient SUVs we've ever tested

Words By Steve Huntingford

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7. Suzuki Vitara 1.6

Official fuel economy: 53.3mpg; True MPG: 47.7mpg; Shortfall: 10.5%

While the original Suzuki Vitara was a tiny, rugged 4x4, the latest version is more of a rival to city-friendly models, such as the Nissan Juke and Renault Captur. Spacious and neatly finished, it's the most efficient petrol SUV we've tested so far.

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6. Kia Niro Hybrid

Official fuel economy: 74.3mpg; True MPG: 50.1mpg; Shortfall: 32.6%

When we fuel-tested this hybrid model, it fell 32.6% short of its official average – more than any other SUV. However, it still topped 50mpg, and its practical interior and seven-year warranty are further plus points.

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5. Seat Ateca 1.6 TDI 115

Official fuel economy: 65.7mpg; True MPG: 50.2mpg; Shortfall: 23.6%

The Ateca is such a brilliant all-rounder that we named it our 2017 Small SUV of the Year. We're particularly keen on the turbocharged 1.4-litre petrol model, but the 1.6-litre diesel is the most efficient option, with a real-world average of 50.2mpg.

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