How does the Quattro system in an Audi A4 improve performance?

I've heard that the Quattro system is a major feature of the Audi A4. Can someone explain how it works and what benefits it provides?

The Quattro system in the Audi A4 is a permanent all-wheel drive system that distributes power to all four wheels. This provides improved traction, stability and control, resulting in better overall performance on various road conditions.

The Quattro system uses electronic sensors to continuously monitor the grip on each wheel and adjust power distribution accordingly. This advanced technology allows for better handling and cornering, giving the driver a sense of confidence behind the wheel.