I agree, sometimes I hypermile, but I think I average about the same, 3.8m/kwh to 4.4m/kwh.
To work it is 3.8m/kwh and to home it can be 5m/kwh. And while I know that I am not a hyper miler all the time, I find that I am am going by what the range meter tells me how much charge I have.
So this...