When you slow, you recover kinetic energy into the battery rather than waste as heat in the friction brakes.
When you accelerate, you can use stored electricity to boost the torque and give better response without using fuel. And thus you can have a smaller lighter engine which in turn needs less energy to move it about.
When you slow, you recover kinetic energy into the battery rather than waste as heat in the friction brakes.
When you accelerate, you can use stored electricity to boost the torque and give better response without using fuel. And thus you can have a smaller lighter engine which in turn needs less energy to move it about.