Cruising down the highway

In case you haven't heard of it, adaptive cruise control (ACC) is standard on most ultra luxury cars now and will eventually become standard on less expensive cars as the technology becomes cheaper and more refined.

The deal with ACC is that unlike regular cruise control, where all it does is maintain your speed, ACC can adapt to vehicles in front of you. You can program it to maintain (for example) a 6 second distance between you and the car in front. If the car in front slows down, so do you, to maintain the time interval. If they speed up, so do you, up to your set speed. If you change lanes and the lane is clear, you get up to your set speed, where you stay until someone blocks your path, then you follow them.

In this video, an Audi A4 is driving on the highway using adaptive cruise control.