Consumer Reports for example at http://news.consumerreports.org/cars/20 ... re-in.html
" onclick="window.open(this.href);return false; reported "On average we consumed 3.16 miles/kWh." Unclear to me if that's "good" or "poor" driving and whether that's energy coming out of the wall (I'd think so).
CR ia reporting wall-to-wheel.
While the Leaf has a dashboard display that shows power consumption in terms of miles per kWh, we couldn’t rely on that for our testing, just like we don’t rely on an average mpg trip computer display in a regular car. To measure its energy efficiency, we put the Leaf through exactly the same tests as we use for gasolie-powered cars. On average we consumed 3.16 miles/kWh. Using a standard formula developed by the EPA, that was the equivalent of 106 mpg.
So, their 3.16 ia more like 3.7 to 4. I'd say that is a typical m/kwh if you are doing highway driving with no particular effort at driving efficiently. That corresponds to about 80 miles of range.
Also, note that their range calculation is based on GOM - so not reliable.