This test is usually performed for vehicles that have undergone various improvements or modifications, or to detect faults in the vehicle's driving mode in a safe and efficient manner.
With a few simple and short runs we can know a lot about the composition such as:
How much horsepower passes and gets to the road precisely
How much horsepower the engine produces
Has the vehicle "lost" horsepower from the manufacturer's data due to mechanical or wear and tear?
Measuring engine suppliers for improved vehicles and sports cars
Did some improvement or change affect the number of horsepower the engine produces, and how much.
Check for propulsion system and 4X4 vehicles