What is the Quattro all-wheel drive system and how does it work in the Audi A3?

I recently bought an Audi A3 and noticed it has the Quattro all-wheel drive system. I've heard of all-wheel drive but I'm not sure how it works in this specific car. Can someone explain it to me?

The Quattro all-wheel drive system is a permanent all-wheel drive system that uses a center differential to distribute power between the front and rear axles. This enables the A3 to have better traction and handling in all types of road conditions.

In simple terms, the Quattro all-wheel drive system in the Audi A3 uses sensors to monitor wheel speeds and sends power to the wheels with the most traction. This ensures better stability and control while driving.