What benefits does the driver of a motor vehicle have by using a cruise control system?

The benefits of using a cruise control system largely include maintaining a constant speed on level roads and making it easier for the driver to operate the vehicle. This system helps reduce fatigue on long drives and promotes fuel efficiency, as it prevents the driver from accelerating and decelerating frequently.

However, it's important to recognize that cruise control does not automatically adjust the vehicle's speed to traffic density. In fact, in certain situations, drivers must be aware and actively respond to changing traffic conditions rather than rely solely on cruise control. Under German traffic laws, driver's responsibility includes adjusting their speed according to road conditions and surrounding traffic. Therefore, while options 1 and 2 are correct, option 3 is an important aspect of safe driving that should not be overlooked. Understanding this distinction is crucial for responsible vehicle operation in accordance with traffic regulations.