What does Nissan Qi Jun's 4wd shine mean?

4WD (four-wheel drive) helps cars to overcome skidding in mud and snow through low-speed ratio transmission, just like driving on off-road, rocky terrain and rolling hills. When these cars are parked or driving at a low speed, they must shift gears with a low speed ratio transmission, and the shift is carried out by a shift lever or a button. However, AWD has become almost the same as 4WD, the only difference is that AWD has less transmission devices than 4WD, but AWD still provides traction capacity on wet roads, bad weather and slightly off-road roads. However, the fact is that it is the height of the vehicle off the ground rather than the AWD capability that plays a decisive role in the off-road capability of the vehicle. All AWD systems are full-time four-wheel drive, which means you don't have to switch between two-wheel drive and all-wheel drive modes.