Not smart cars or even hybrid vehicles. Per google, 25MPG is 9.4 l/100km. That's what what my 15+ year old gas car does while driving around a city. Out of city, I get between 6 and 8 (40 and 30 mpg respectively). The way I drive and the trips I take, I usually land in the 7.3-7.5 area, so that would be the lower end of 30s. This is considered slightly inefficient, but not horribly so. Expected from a car this old.