What is the benefit of using adaptive cruise control (ACC) on motorways?

The selected combination of benefits for using adaptive cruise control (ACC) is valid as both points highlight important aspects of its function.

1. Reducing the probability of rear-end collisions is essential. ACC automatically adjusts the vehicle's speed to maintain a safe distance from the vehicle in front, helping to prevent sudden stops and allowing for a smoother driving experience.

2. The assistance in maintaining the chosen distance is another crucial feature. It enables the driver to set a specific speed and distance from the car ahead, which promotes safer following behavior and reduces the mental load on the driver during long-distance travel.

However, while the option regarding the safety distance not being undercut is not selected, it's still a vital aspect of ACC. The system enforces the minimum distance that should be maintained, which is in line with German traffic laws emphasizing safe driving distances. These laws are designed to enhance road safety and are particularly relevant in preventing collisions.

Understanding the full scope of ACC’s benefits is important for recognizing how this technology contributes to safer driving practices on the Autobahn and other motorways.