What is the difference between Audi A8's quattro system and all-wheel drive?

I'm looking to buy an Audi A8, but I'm confused about the quattro system and all-wheel drive. Can you explain the difference and which one is better for driving in various weather conditions?

Audi's quattro system is a specific type of all-wheel drive that is designed for better handling and performance on the road compared to traditional all-wheel drive systems. It is generally considered superior in terms of traction and control in all weather conditions.

Quattro is Audi's branded name for their all-wheel drive system. It utilizes a center differential to distribute power between the front and rear axles, while other all-wheel drive systems may use other technologies such as torque vectoring. Both systems can provide improved traction and handling, but it ultimately depends on personal preference and driving habits.