I can get 35-40 around town and about 45+ on the motorway, (diesel engine however). Do basic checks such as air filter, fuel filter and brakes (may be binding). Petrols are generally more thirsty of course.Took delivery of my Discovery Sport one week ago. Love it! However... I've been averaging, according to both my own accounting and the onboard computer's data, twelve miles per gallon. And I've been driving it in "Economy" mode! Yikes. Anyone else experiencing this? Something is definitely amiss.