What is the Audi A8's advanced safety technology and how does it work?

I was wondering about the safety features of the Audi A8 and how they contribute to a safer driving experience. Can you provide some details on the advanced safety technology and explain how it works?

The Audi A8 is equipped with a suite of advanced safety features including Audi pre sense, which uses radar and sensors to detect potential collisions and can automatically apply brakes to avoid or reduce impact.