A car engine is a machine that converts fuel into motion, allowing the vehicle to move. Most engines operate on the principle of internal combustion, where fuel, typically gasoline or diesel, is mixed with air and ignited to create a series of small explosions. These explosions push pistons, which turn the crankshaft and ultimately drive the wheels. There are various types of car engines, including inline engines, V engines, and rotary engines. Each type has its own design and performance characteristics. Additionally, advancements in technology have led to the development of electric engines, which use electricity stored in batteries to power the vehicle without traditional fuel.