How does Variable Valve Timing work in the Audi A7?

I'm interested in understanding the mechanics behind Audi's Variable Valve Timing system. How does it improve performance and efficiency in the A7?

Variable Valve Timing, or VVT, is a technology used in engines to vary the timing of the opening and closing of the valves. In the Audi A7, this is achieved through the use of a hydraulic actuator that controls the camshaft position. This allows for precise control of the valve timing, resulting in improved engine efficiency and performance.

VVT has multiple benefits in the Audi A7. One of the main advantages is improved fuel efficiency. By adjusting the valve timing, the engine can optimize the air-fuel ratio and increase fuel efficiency. Additionally, VVT also helps to improve engine power and torque output, resulting in a smoother and more responsive driving experience.