What are the most important features of the Audi A6's Quattro all-wheel drive system?

I've heard a lot about the Quattro all-wheel drive system in Audi cars, but I'm not sure what makes it stand out. Can someone break down the key features for me?

The Quattro all-wheel drive system uses a unique torque split that distributes power 40% to the front and 60% to the rear wheels, providing superior handling and control in all weather conditions.

Not only does the Quattro system improve traction, but it also enhances fuel efficiency by only activating when needed, ensuring optimal performance and efficiency.

The Quattro technology constantly monitors and adjusts the power distribution between the wheels, providing a seamless and smooth driving experience even on rough terrain.