What is the function of a car engine?

[LeonardoRose]

The function of a car engine is to provide power for the vehicle, determining its performance, fuel efficiency, stability, and environmental friendliness. Depending on the power source, car engines can be classified into diesel engines, gasoline engines, electric vehicle motors, and hybrid engines, among others. An engine is a machine capable of converting other forms of energy into mechanical energy. It can refer to both the power generation device and the entire machine including the power unit (such as a gasoline engine or an aircraft engine). Types of engines include internal combustion engines (e.g., gasoline engines), external combustion engines (e.g., Stirling engines, steam engines), gas turbines (used in racing cars), electric motors, etc.