What is the advanced safety technology in the Audi A4?

I heard that the Audi A4 has some unique safety features. Can you specify what they are and how they work?

The Audi A4 is equipped with advanced safety technology such as the Audi pre sense city system which detects potential collisions with other vehicles or pedestrians in the city and activates emergency braking. This not only reduces the risk of accidents but also minimizes the severity of any potential collisions.

Another notable feature is the Audi active lane assist, which helps the driver maintain the correct lane position by using corrective steering interventions. This is particularly useful on long highway drives and can reduce fatigue for the driver.

The Audi A4 also comes with adaptive cruise control with stop & go, which maintains a safe distance from the vehicle in front and can even bring the car to a complete stop in heavy traffic. This takes a lot of stress off the driver during long commutes or road trips.