+1 Using EPA figure of one US gallon of petrol having 33.7 kWh of energy and the Leaf having only a 24 kWh battery pack (energy in only 3 litres of petrol), that gives 130-160 km of driving, the difference in EV energy use compared to petrol (especially V8) is dramatic.
Internal combustion engines are horrendously inefficient at converting the chemical energy in petrol into kinetic energy... I think only 35% efficient or so. Electric motors are IIRC 97% efficient. So a 24kWh battery will give you the same range/power as about 9 litres of petrol.