Sly drinkers

New research has confirmed what decades of Wheels road-testing has proved. In the real world, the majority of cars exceed their official published fuel-consumption figure by a significant amount, some by up to 60 percent.

A large-scale independent on-road vehicle emissions testing program an Australian first, conducted by the AAA found that 17 of 30 vehicles tested used 25 percent more fuel on average than their official rating. The testing also revealed on-road noxious gas emissions up to eight times the legal limit.