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.
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.
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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