A car engine works by converting fuel into energy, which is then used to power the car's movement. The engine uses a combination of gasoline and air, which is drawn into the engine via the intake manifold. Inside the engine, the fuel is mixed with the air and then compressed by the piston. As the piston moves upwards, it compresses the fuel-air mixture, causing it to ignite. The resulting explosion pushes the piston downwards, which drives the engine's crankshaft and generates power. This power is then transmitted to the wheels of the car via the transmission, causing the car to move