Fortunately, gasoline cars are so inefficient that you only need about 1/3 of the comparable energy in an electric car to move the vehicle. Still a ways to go,

Fortunately, gasoline cars are so inefficient that you only need about 1/3 of the comparable energy in an electric car to move the vehicle. Still a ways to go, but we don't need to get to all the way gasoline energy density for the equivalent range.