Even that won’t use max power. The amount of energy required to move a vehicle forward at 60km/h is a fixed quantity to do with rolling resistance and drag. Th

Even that won’t use max power. The amount of energy required to move a vehicle forward at 60km/h is a fixed quantity to do with rolling resistance and drag. There’s going to be greater loss due to friction in the engine and losses in the gearbox, probably in the single digit range? I honestly don’t know anything accurate. Most power is required accelerate.