What does the approach angle of a car mean?

[LolaLee]

The approach angle of a car refers to the angle between the tangent line drawn from the frontmost protruding point of the car to the front wheels and the ground when the car is fully loaded and stationary. In other words, it is the maximum angle between the horizontal plane and the plane tangent to the outer edge of the front wheel tires (under static load). No rigid components fixed to the vehicle in front of the front axle should be below this plane. The larger the approach angle, the less likely the car is to experience a 'nose-dive' accident when going up or down slopes or during off-road driving, and the better the car's passing performance. The departure angle refers to the angle between the tangent line drawn from the rearmost protruding point of the car to the rear wheels and the ground when the car is fully loaded and stationary. The larger the departure angle, the less likely it is for the rear of the vehicle to touch the ground and prevent passage; the smaller the departure angle, the more likely it is for the rear of the vehicle to touch the ground and prevent passage.