Performance and Power Powered by a 2.0L engine running on CNG, the CNG S6 - 2.0L delivers impressive performance. The engine is tuned to provide strong torque and smooth acceleration, making it capable of handling a variety of driving conditions with ease. Whether you're accelerating onto a highway or climbing a hill, the vehicle responds promptly and powerfully. The CNG fuel system is designed to ensure a consistent supply of fuel, enabling the engine to maintain its high - performance capabilities throughout your journey.