According to the size and type of the car body, the car grades are divided into: mini car (A00), small car (A0), compact car (A), medium car (B), medium car (C), large car (D), small SUV, compact SUV, medium SUV, large SUV, MPV, sports car, pickup truck, micro-plane and light bus.

Our usual A00, A0, A, B and C models are generally used for cars, while A+, A- and A++ still belong to the category of compact cars. A++ is a compact car close to the level of a medium-sized car. We can also call A++ cars entry-level medium-sized cars (B-cars). The classification of SUV is similar to that of car, while other models-MPV, sports car, pickup truck, micro-plane, light passenger and micro-card-are relatively easy to distinguish, without more levels.