A car engine is a machine that converts fuel into motion, allowing the vehicle to move. It works by igniting a mixture of air and fuel in a series of small chambers called cylinders. This process creates small explosions that push pistons, which then turn the crankshaft and ultimately drive the wheels of the car. There are different types of car engines, including internal combustion engines and electric engines. Internal combustion engines typically run on gasoline or diesel, while electric engines use electricity stored in batteries. Each type has its own advantages and is suited for different driving needs and preferences.