Lets see, you go into a gas station, fill up and usually away you go in 10 minutes. Now, you were driving down the Highway, Oooooops, car needs a charge, 3 kids in the car, your late for soccer practice, gotta get the dog to the vet, gotta get home to make dinner, BUT, I gotta stop and charge the car for an hour... Yeah, I see how all this is gonna work. When you run out of electricity on the highway, in that traffic jam, is someone gonna bring you a jug of electricity? OH BOY! Can't wait...