How does the Audi A5's quattro system differ from standard 4-wheel drive?

I've heard that the Audi A5 has something called 'quattro' but I'm unsure of how it compares to regular 4-wheel drive. Can anyone explain the difference?

Quattro is Audi's unique all-wheel drive system that uses a self-locking center differential to distribute power between the front and rear axles. This provides better traction and handling, especially in slippery conditions.

Compared to traditional 4-wheel drive systems, quattro constantly monitors road conditions and can automatically adjust power distribution to each individual wheel for maximum grip and stability. It's a game-changer in terms of performance and control.

The quattro system is not just limited to distributing power between the front and rear wheels, but it can also shift power between the left and right wheels for even better handling and cornering capabilities.