What is the quattro system in Audi A7 and how does it enhance the car's performance?

I've noticed that the Audi A7 comes with the quattro all-wheel drive system, but I'm not sure how it works and why it is considered a valuable feature. Can someone explain its function in more detail?

The quattro system in Audi A7 is a permanent all-wheel drive system that helps with traction and stability by constantly adjusting power distribution to each wheel based on driving conditions. This enhances the car's handling and performance, especially in wet or slippery roads.

I've driven an Audi A7 with and without the quattro system, and trust me, the difference is night and day. It not only provides better grip and control, but also improves fuel efficiency by reducing power wasted in wheelspin.

The quattro system is just one of Audi's innovations in handling and driving dynamics. It uses advanced technology like torque vectoring and a self-locking differential to ensure optimal performance and agility on any road surface.