The main function of automobile body is to maintain the driver and to form a good aerodynamic environment. The structure of automobile body can be divided into non-load-bearing, load-bearing and semi-load-bearing. The automobile body components include launching hood, roof cover, suitcase cover, wing plate, front panel, etc.

　　发起机盖：发起机盖的在构造上普通由外板和内板组成，中间夹以隔热资料，内板起到加强刚性的作用，其几何外形由厂家选取，根本上是骨架方式。发起机盖开启时普通是向后翻转，也有小局部是向前翻转。

　　Initiator cover: Initiator cover is generally composed of outer and inner plates in structure, with heat insulation material clamped in the middle. Inner plate plays a role in strengthening rigidity. Its geometric shape is chosen by the manufacturer, and it is basically a skeleton way. When the engine cover is opened, it is usually turned backward, and a small part is turned forward.

　　车顶盖：车厢顶部的盖板。关于轿车车身的总体刚度而言，顶盖不是很重要的部件，这也是允许在车顶盖上开设天窗的理由。从设计角度来讲，重要的是它如何与前、后窗框及与支柱接壤点平顺过渡，以求得好的视觉感和小的空气阻力。当然，为了平安车顶盖还应有一定的强度和刚度，普通在顶盖下增加一定数量的增强梁，顶盖内层敷设绝热衬垫资料，以阻止外界温度的传导及减少振动时噪声的传送。

　　Roof cover: The top cover of the carriage. As far as the overall stiffness of car body is concerned, the roof cover is not a very important component, which is also the reason why the roof cover is allowed to have a skylight. From the design point of view, it is important how it smoothly transits with the front and rear window frames and the contact points with the pillars in order to obtain the best visual sense and minimum air resistance. Of course, for the sake of safety, the roof cover should also have certain strength and stiffness. Generally, a certain number of reinforced beams are added under the roof cover. Inside the roof cover, insulation cushion is laid to prevent the transmission of external temperature and reduce the transmission of noise when vibration occurs.

　　行李箱盖：行李箱盖也有外板和内板，内板有增强筋。一些被称为“二厢半”的轿车，其行李箱向上延伸，包括后档风玻璃在内，使开启面积增加，构成一个门，因而又称为背门，这样既坚持一种三厢车外形又可以便当寄存物品。

　　Luggage cover: Luggage cover also has outer and inner panels, and inner panels have reinforcing ribs. Some cars called "two-and-a-half compartments" extend their suitcases upwards, including the rear windshield, which increases the opening area and forms a door, so they are also called back doors, which not only adhere to the shape of a three-compartment car, but also can be used as deposits.

　　翼子板：翼子板是遮盖车轮的车身外板，因旧式车身该部件外形及位置似鸟翼而得名。依照装置位置又分为前翼子板和后翼子板，前翼子板装置在前轮处，因而必需要保证前轮转动及跳动时的大极限空间，然后翼子板无车轮转动碰擦的问题，但出于空气动力学的思索，后翼子板略显拱形弧线向外凸出。当前有些轿车翼子板已与车身本体成为一个整体。

　　Wingspan: Wingspan is the body outer panel covering the wheels. It is named for the shape and position of the old-style body parts like bird wings. According to the location of the device, the front fender is divided into front fender and rear fender. The front fender is installed at the front wheel. Therefore, the maximum limit space of front wheel rotation and jump must be guaranteed. Then the fender has no wheel rubbing problem. However, due to aerodynamic considerations, the rear fender shows a slightly arch curve protruding outward. At present, some car wing panels have become a whole with the body.

　　前围板：前围板是指发起机舱与车厢之间的隔板，它和地板、前立柱联接，装置汽车车身，在前围上盖板之下。前围板上有许多孔口，作为支配用的拉线、拉杆、管路和电线束经过之用，还要配合踏板、方问机柱等机件装置位置。

　　Front panel: The front panel refers to the partition between the engine room and the carriage, which is connected with the floor and the front column, and fits the car body under the upper cover of the front panel. There are many orifices on the front panel, which are used as the dominant pull wire, tie rod, pipeline and wire harness, as well as the position of pedals, square machine pillars and other parts.