Beijing BJ40 is equipped with a 2.0t gasoline engine independently developed by BAIC, with a maximum power of 2 18 horsepower. In the automobile industry, horsepower is usually used as a unit to measure power. One Kawara Tsutomu is equivalent to 735 watts, that is to say, one horsepower is equal to 75 kilograms, one second 100 meter. In China's legal units of measurement, the unit of power is watt, and the power of an engine refers to the work done by the engine in unit time, which will lead to power loss. For safety reasons, it will increase the weight of the car body and other operations, and will also lead to further loss of power. Therefore, the performance of small-displacement engine models is not necessarily worse than that of high-power engines, and it needs to be comprehensively considered through various parameters of the car, such as body weight. Million car purchase subsidy