I don't like it! In fact I hate it! You are upsetting me no end.
Most of my driving is local, at speeds around 25-35 mph. Your table says I should be getting 6-7 m/kWh, but I'm not. In fact I rarely go above 3.5 m/kWh unless I get on the freeway, then I can get up around 4.3 at 60 mph.
Now, I am not doubting you when you say you can get 8 m/kWh driving around a circle at 10 mph, but that is really only a laboratory experiment. In the real world if you are driving at those speeds it's because you are in a traffic jam, or heavy city traffic, or on residential streets. In all of those situations you have stops. Lots of stops; stops for traffic, and unsynchronized signals, and stop signs, and balls bouncing out between parked cars.
Even you, LEAFfan, with your incredible 9+ m/kWh, can you get more than half that at any speed -- pick your favorite -- if you have to stop six or more times per mile?
You probably thought I was joking with my opening statement here, but I wasn't, not really. That chart lies when it comes to real world conditions. Please, for my sanity, put a big asterisk on there stating that the numbers apply only for constant speeds, no slowing or stopping, and that frequent stops can easily cut the figures in half.
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.