What is the Hybrid Quattro system in an Audi A7 and how does it improve performance?

I've heard that the Audi A7 has a Hybrid Quattro system, but I'm not sure what that means. Can you explain what this system does and how it impacts the car's performance?

The Hybrid Quattro system in the Audi A7 combines a conventional gasoline engine with an electric motor to deliver increased power and fuel efficiency. It works by using the electric motor to assist the engine when accelerating, which results in a quicker and smoother acceleration. Furthermore, the regenerative braking system in the Hybrid Quattro allows the electric motor to recharge itself while braking, further improving fuel efficiency.