How does the Audi A4's Quattro all-wheel drive system work?

I've heard that the Audi A4 has a Quattro all-wheel drive system, but I'm not sure how it differs from other AWD systems. Can you explain how it works and why it's unique to Audi?

The Quattro all-wheel drive system in the Audi A4 uses a center differential to distribute power between the front and rear axles. This allows for better traction and handling in all weather conditions.

Compared to other AWD systems, Audi's Quattro system is more reactive and can distribute power to individual wheels when needed. It also provides a more balanced weight distribution, resulting in better overall performance.

As someone who lives in a snowy climate, I can tell you that the Quattro all-wheel drive system in my Audi A4 gives me much more confidence on the road. It's a must-have feature for anyone living in a cold climate.