动力性是汽车的主要使用性能之一,对于营运汽车则要求其动力性水平必须达到相应的技术等级后才能参加经营性运输业务。因此,汽车的拥有者与使用者都希望所拥有或使用的汽车具有良好的动力性,以便能多拉快跑,提高运输效率;而车辆及道路运输管理部门为确保道路畅通,减少交通堵塞和交通事故,也要求汽车具有良好的动力性,并强制对其进行定期检测。 Power is one of the main performance of the car, for the operation of the car requires its level of power must reach the appropriate technical level before they can participate in the business of transport operations. Therefore, owners and users of automobiles hope that the cars they own or use will have good power so as to run more efficiently and improve the efficiency of transportation. In order to ensure smooth roads and reduce traffic congestion, vehicles and road transport administrations Traffic accidents, but also requires the car has a good dynamic, and mandatory for its regular testing.