Engine type: Refers to the characteristics of the power plant, such as fuel type, number of cylinders, displacement and static braking power. The engine installed on the car or multi-purpose passenger vehicle shall be marked with the professional engine manufacturer, model and production number according to the regulations. The most common is to classify according to the arrangement of the engine and the number of cylinders, there are W-type 12-cylinder engine, V-type 12-cylinder engine, W-type 8-cylinder engine, V-type 8-cylinder engine, opposed 6-cylinder engine, V-type 6-cylinder engine , in-line 5-cylinder engine and in-line 4-cylinder engine.