Cars consist of numerous internal parts and components that work together to enable the vehicle to function. These parts can vary somewhat depending on the make and model of the car, but here are some of the fundamental internal parts found in most cars:

Engine: The engine is the heart of the car, responsible for generating power by burning fuel. It includes components like cylinders, pistons, crankshaft, camshaft, and valves.

Transmission: The transmission, whether manual or automatic, is responsible for regulating the power generated by the engine and transferring it to the wheels. It consists of gears, a clutch (in manual transmissions), a torque converter (in automatic transmissions), and a gearbox.

Exhaust System: This system manages the exhaust gases produced during the combustion process. It typically includes an exhaust manifold, catalytic converter, muffler, and tailpipe.