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The US Environmental Protection Agency (EPA) has ratified the Mazda CX-3‘s fuel consumption figures, and the net result is that the little newcomer from Hiroshima can now claim to be the most economical B-segment SUV in America, beating out more established rivals (but only just).

In standard front-wheel drive trim with a 2.0 litre SkyActiv-G direct-injected four-cylinder engine and a six-speed SkyActiv-Drive automatic transmission, it achieves 29 mpg (8.1 litres per 100 km) in the city and 35 mpg (6.7 litres per 100 km) on the highway.

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By comparison, the CVT-equipped 1.8 litre Honda HR-V is just 1 mpg behind in the city at 28 mpg (8.4 litres per 100 km) and matches the CX-3 on the highway. The Nissan Juke 1.6 DIG-T, on the other hand, ties with the HR-V in the city, but trails the leaders on the highway at 34 mpg (6.9 litres per 100 km); strangely, it’s at its most economical with the Nismo‘s six-speed manual, rather than with the standard Xtronic CVT.

Equipped with optional all-wheel drive, the best the CX-3 can do is match the AWD HR-V’s 27 mpg (8.7 litres per 100 km) in the city and 32 mpg (7.4 litres per 100 km) on the highway. Behind them, the Juke again nabs third place (its AWD system is available only with a CVT) with 26 mpg (9.0 litres per 100 km) and 31 mpg (7.6 litres per 100 km) respectively.