Why do Audi A4 models have a Quattro all-wheel drive system?

I've been looking at different A4 models and I've noticed that a lot of them have the Quattro all-wheel drive system. Can anyone tell me why this system is used on A4s and if it's worth the extra cost?

The reason why Audi A4 models often come with the Quattro all-wheel drive system is because it provides excellent handling, especially in poor weather conditions. It distributes power between all four wheels, giving the car better control and traction. It's definitely worth it if you live in an area with frequent snow or rain.

The Quattro all-wheel drive system is a key feature of Audi's brand identity and has been used on their models for many years. It was first developed for rally racing and has since become a signature element of their cars. If you're an Audi enthusiast, the Quattro system is a must-have.