What is Quattro all-wheel drive and how does it enhance the Audi A4's performance?

Can you explain the technology behind Quattro all-wheel drive and how it works in the Audi A4? I've heard it's a key feature that sets the A4 apart from other cars in its class.

The Quattro all-wheel drive in the Audi A4 uses a mechanical center differential to distribute power between the front and rear wheels, providing superior traction and handling in various driving conditions. It's especially useful in cold weather, off-road situations, and during sharp turns.