What is the primary purpose of the ProPILOT Assist feature?

The primary purpose of the ProPILOT Assist feature is to assist with adaptive cruise control and lane centering. This system integrates various technologies to enable a more comfortable and safer driving experience by maintaining a set speed and following the vehicle in front, as well as helping the driver stay centered in their lane. This functionality allows for less driver fatigue, especially during long trips or in heavy traffic, as the car can automatically adjust its speed and position within the lane without constant manual input from the driver.

While the other options touch on features that may be present in advanced vehicles, they do not encompass the main capabilities of ProPILOT Assist. Enhancing fuel efficiency, providing automated parking, and road sign detection are important functions, but they are not the primary focus of this particular feature. Instead, ProPILOT Assist is centered around making driving easier by integrating cruise control with lane-keeping assistance, which supports a more autonomous driving experience.