What are the key features of the Audi A8's adaptive cruise control technology?

I am looking for information on the specific capabilities of the Audi A8's adaptive cruise control (ACC). Does it have stop-and-go functionality, automatic braking, and lane keeping assist? Are there any limitations or situations where it may not work effectively? Thanks!

The Audi A8's adaptive cruise control includes stop-and-go functionality, so it can help maintain a safe distance from the vehicle ahead even in heavy congestion. It also has automatic emergency braking, which can engage if a potential collision is detected. However, note that the ACC may not function properly in certain situations, such as heavy rain or snow, when it cannot accurately detect the road or surrounding vehicles.