Erock727 5pts I think a lot of this information is misleading. Electric motors are fairly efficient. I find it had to believe that the new leaf has made that big a leap in motor technology. The car is a bit lighter but not enough to make up the big change of efficiency. I think maybe some of the new testing on city and highway range has changed also. I would wonder if the changes they made could just be soft ware changes like better use of Regen braking or better use of energy when the car is not moving. The 2011 car uses about 200 watts just stopped at a stop sign not moving.