For example, the Auto in the green text below stands for automatic air conditioning, that is, the car can automatically adjust the air conditioning temperature and air volume according to the ambient temperature at that time, without manual adjustment. There is also a red letter "A", which stands for energy-saving start and stop of the engine, that is, an energy-saving mode equipped on some vehicles, that is, when the vehicle encounters a red light ahead or needs to stop, the driver steps on the brake and the engine will stop working until the vehicle stops, at which time the engine is at rest. In this case, every time you wait for a red light or stop temporarily, you can save the fuel consumption of the vehicle in the open state.
There are also some cars with the word auto on the glass or door panel. In fact, this means automatic car, because car English also means car and automatic.