True MPG: how close to reality are official fuel economy figures?
What Car?'s True MPG test reveals official fuel economy figures are closer to reality than ever… but still an average of 5.7% worse than claimed...
Mazda CX-30 2.0 SkyactivX 180
Engine 4cyl, petrol Gearbox Manual
Official economy 47.9mpg True MPG 42.6mpg Difference -11.1%
Engine 4cyl, turbo, petrol Gearbox Automatic
Official economy 32.5mpg True MPG 28.5mpg Difference -12.3%
Read our full Cupra Ateca review or see what discounts are available on the Ateca
Kia Sportage 2.0 CRDi 48V
Engine 4cyl, diesel Gearbox Automatic
Official economy 41.0mpg True MPG 35.7mpg Difference -12.9%
Read our Kia Sportage review or see what discounts are available on the Sportage
Ford Focus 1.5 Ecoblue 120
Engine 4cyl, diesel Gearbox Manual
Official economy 61.4mpg True MPG 52.4mpg Difference -14.7%
Read our Ford Focus review or see what discounts are available on the Focus
Volvo S60 T5
Engine 4cyl, turbo, petrol Gearbox Automatic
Official economy 38.2mpg True MPG 32.5mpg Difference -14.9%
Read our Volvo s60 review or see what discounts are available on the S60
BMW 1 Series 118i
Engine 3cyl, turbo, petrol Gearbox Automatic
Official economy 42.8mpg True MPG 36.3mpg Difference -15.2%
Read our BMW 1 Series review or see what discounts are available on the 1 Series
BMW 3 Series 320d
Engine 4cyl, diesel Gearbox Automatic
Official economy 57.6mpg True MPG 47.2mpg Difference -18.1%
Read our BMW 3 Series review or see what discounts are available on the 3 Series
Renault Clio TCe 100
Engine 3cyl, turbo, petrol Gearbox Manual
Official economy 54.3mpg True MPG 44.4mpg Difference -18.2%
Read our Renault Clio review or see what discounts are available on the Clio
Volvo V60 D4
Engine 4cyl, diesel Gearbox Automatic
Official economy 49.5mpg True MPG 40.1mpg Difference -19.0%
Read our Volvo V60 review or see what discounts are available on the V60
Volvo XC40 T4
Engine 4cyl, turbo, petrol Gearbox Automatic
Official economy 34.8mpg True MPG 27.1mpg Difference -22.1%
Read our Volvo XC40 review or see what discounts are available on the XC40
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