What is Quattro and how does it improve driving in Audi vehicles?

I've heard that Audi vehicles have a unique feature called Quattro. Can you explain what it is and how it enhances the driving experience?

Quattro is Audi's all-wheel drive system, which distributes power to each individual wheel in real-time for improved handling and traction on various road conditions.

Quattro is like having four-wheel drive all the time, but with the added benefit of being able to adjust the power distribution for better performance or fuel efficiency. It's great for snow, rain, and even dry roads.