What is the Audi A8's primary safety feature and how does it work?

I am curious about the Audi A8's safety features and how they help protect me while driving. Can you explain the primary safety feature and how it operates in real-life situations?

The Audi A8's primary safety feature is its innovative Pre Sense technology. It uses cameras, radars, and sensors to detect potential collisions and prepares the car and its passengers for impact.

If an imminent collision is detected, the Pre Sense system can automatically close the windows and sunroof, tighten the seatbelts, and apply maximum braking force to reduce the severity of the impact.

Pre Sense also has an optional feature called Pre Sense Rear, which can detect potential rear-end collisions and will flash the brake lights to warn the approaching driver.