Question: how much energy is needed to drive a car 1 km?
Answer: How much energy is needed for a car to drive 1km? - Quora. A reasonable average is 5 km per kWH. Since a kWH is 3.6 MJ, this means about 720 kJ per km. A reasonable estimate of the absolute minimum energy is to assume no air friction (moving very slowly) and having only rolling friction.