How does the Adaptive Cruise Control (ACC) system work in the Audi A1?

I've been considering purchasing an Audi A1 and I've heard about the ACC system but I'm not sure how it actually works. Can you explain it to me in detail?

The ACC system in the Audi A1 uses radar sensors to maintain a safe distance from the vehicle in front of you. It will automatically brake and accelerate to keep a set distance, making highway driving much smoother.

I've found that the ACC system in the Audi A1 is especially useful in heavy traffic. It takes the stress out of constantly needing to adjust your speed and allows you to focus on other aspects of driving.

One tip for using the ACC system is to always make sure your sensors are clean and free of any dirt or debris. This will ensure accurate readings and better performance.