What is the function of the Audi A4 Quattro Differential?

I've heard about the Quattro system in Audi A4, but can someone explain the specific function of the differential and how it enhances the overall performance of the car?

The Quattro differential distributes power to each wheel based on driving conditions, allowing for better traction and control on various surfaces, ultimately improving handling and stability of the car.

The differential in the Quattro system also allows for torque vectoring, meaning it can shift power between the front and rear axles and even from left to right for optimal performance in different driving situations.

Not only does the Quattro differential provide better performance on tough roads, but it also helps improve fuel efficiency by only sending power to the necessary wheels and reducing unnecessary power loss.