How does the adaptive cruise control work in Audi A6?

I am looking at buying an Audi A6 and want to know more about the adaptive cruise control feature. How does it work and is it reliable?

The adaptive cruise control in the Audi A6 uses radar and front-mounted sensors to monitor the distance to the vehicle ahead and adjust the car's speed accordingly. It is a very reliable feature and has been praised for its accuracy and responsiveness.

The adaptive cruise control can be adjusted to maintain a specific distance from the vehicle ahead, making highway driving more efficient and comfortable. It also has the ability to come to a complete stop and resume following when traffic starts moving again.