What is Audi A7's Quattro system and how does it improve the car's handling?

As an Audi A7 owner, I've heard a lot about the Quattro system. I know it's some kind of all-wheel drive system, but I'm not really clear on how it works and what benefits it brings to the car's performance. Can someone please explain it to me in more detail?

The Quattro system on the Audi A7 is a permanent all-wheel drive system that constantly distributes power to all four wheels as needed. This not only provides improved traction and stability in various driving conditions, but also enhances the car's handling and overall performance.

Unlike traditional all-wheel drive systems, Audi's Quattro system uses a self-locking center differential to distribute torque between the front and rear axles. This not only allows for better power distribution, but also allows the car to handle more dynamically and smoothly.