Should the Great Wall cannon use low-speed four-wheel drive or timely four-wheel drive in snowy days?

The four-wheel drive system of the Great Wall Gun can increase the grip and prevent the wheels from slipping in snowy days. The application scope of timely four-wheel drive is low load condition, which can play a very good role on rain and snow roads and high-speed driving. It can cope with the ground slip phenomenon in rainy and snowy weather or poor traffic conditions.