Power to weight ratio. Explain

The power-to-weight ratio represents the ratio between a vehicle's power and its total weight.
The higher the PWR, the faster the vehicle will accelerate. It is for this reason that motorbikes accelerate quicker than most cars.
PWR calculations are commonly used to predict vehicle speed.
It's very easy to calculate a power-to-weight ratio. Simply divide the power output of a vehicle by its weight.
If you have a car that weighs 2000 pounds and has 250 hp, the PWR will be as follows: 250 / 2000 = 0.125 hp for every pound of car.

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