[dcb]

...and enjoy your 10mpg extended range.

i.e. 7.5kwh kohler runs at 1.4gph, times charging losses, times discharging losses, times controller losses, times motor losses, before you get to an actual output shaft that can turn a wheel.

If you are wondering, the bsfc there, measured at the generator output, is about 523g/kwh, compared to something like a metro or saturn which peaks at 250g/kwh and whos bsfc charts don't even show an isobar for anything in the 500 range.