What is quattro all-wheel drive system in Audi A8?

I've heard about quattro all-wheel drive system in Audi A8, but what is it exactly? How does it work and what are the benefits?

The quattro all-wheel drive system is a feature that distributes power to all four wheels of the Audi A8, providing improved traction and stability control. This results in better handling and performance, especially in slippery or uneven road conditions.

Quattro all-wheel drive system is a trademark of Audi and has been celebrated as a game-changing technology in the automotive industry. It uses a center differential to split power between the front and rear wheels, and can further distribute power between the left and right wheels to improve grip and handling.