This vehicle certainly delivers as advertised. I do not care so much about fuel costs as environmental impact and with an average of 69 MPGs and the lowest emissions of any gasoline vehicle on the planet, I feel this vehicle treads lightly. There is plenty of storage space (I carry an entire soccer team's gear to matches weekly) and the acceleration is what is needs to be for highway driving. The handling is confortable and the gauges informative as you can adjust your driving habits to maximize the car's abilities to conserve. This is my 8th car, and by far my absolute favorite.
Efficiency, this car does not cater to the excesses of the automobile universe.