Car parts are the individual components that make up a vehicle, each serving a specific function. Key parts include the engine, which powers the car, and the transmission, which transfers power from the engine to the wheels. Other important components are the brakes, which help slow down or stop the vehicle, and the suspension, which provides a smooth ride by absorbing bumps in the road. Additionally, the battery supplies electrical energy to start the engine and power accessories, while the tires provide traction and support the weight of the car. Regular maintenance of these parts is essential for safe and efficient vehicle operation.