Undercarriage parts, such as the suspension system, axles and driveshafts, braking system, and exhaust system, contribute to the overall performance and durability of a vehicle. The suspension system maintains contact between the tires and the road surface, ensuring stability, handling, and a comfortable ride. Axles and driveshafts transmit power from the engine to the wheels, enabling efficient power distribution and movement. The braking system allows for safe and efficient stopping of the vehicle, while the exhaust system helps control emissions and expel harmful gases from the engine.