2018-08-01
As we all know, the highest speed limit of the expressway in our country is limited to 120km/h, and the car's speed meter is mostly in the 240km/h, which causes the vehicle to go to the 120km/h easily in the condition of the car condition, so that people have to decelerate. But more time, the car condition is not good, such as the road congestion, interval velocity measurement, the daily speed can only go to about 90km/h, speed can not come up.The maximum speed setting is also for safety consideration......