How does the Audi A5's quattro all-wheel drive system improve handling in slippery conditions?

I've heard that the Audi A5 has a great all-wheel drive system, but I'm wondering specifically how it helps with driving in bad weather or on slippery roads. Can someone explain the technology behind the quattro system and how it differs from other AWD systems?

The quattro all-wheel drive system in the Audi A5 uses a torque-sensing center differential to distribute power between the front and rear axles, constantly monitoring traction and adjusting power accordingly. This allows for improved grip and handling in slippery conditions compared to other AWD systems that depend on wheel slip to engage.