kingdragonfly:Aredwood: Surely a diesel car would be better for the environment than burning the diesel in a generator, just to get power for charging an EV.
I've heard that an EV charged from a gasoline powered generator is equivalent to 77 MPG, because an electric motor is more efficient than an internal combustion engine.
You need to compare the efficiency of the electricity generator plus lines plus battery charger plus electric motor vs the efficiency of the fuel delivery system plus the ICE. I expect that a diesel generator will be well-optimised at converting diesel/kerosene/whatever into electricity, whereas an ICE (whether petrol or diesel) is a compromise which rarely runs at optimal energy conversion rates.