How does the Audi A8 achieve such a smooth and quiet ride?

I've heard that the Audi A8 is renowned for its comfortable and noiseless driving experience. Can anyone explain how this is achieved?

The smooth and quiet ride in an Audi A8 is thanks to its state-of-the-art suspension system, which uses adaptive air suspension and active damping control to absorb imperfections in the road and minimize vibrations.

In addition to its advanced suspension system, the Audi A8 also utilizes insulated windshield and side windows as well as acoustic glass to reduce outside noise and ensure a peaceful driving environment.

The Audi A8 also features active noise cancellation technology, using four microphones inside the car to pick up and neutralize unwanted engine and road noise for a truly tranquil ride.