The thing is when gasoline is used to power a car about 80% of the energy is loss to heat and only about 20% is used to actually move the car on average. It’s worse when you are doing acceleration and better when cruising at a steady speed on a level surface.
Are you perhaps looking for something like this? Or something else.
That said, learning the terminal commands is a much better path. You’ll develop a richer understanding of the various tools with repetition.