I am just about to order a Galaxy with Adaptive Cruise control. I had one on loan from Ford and it was superb. It is set while driving at a certain speed, but you can turn the set speed up and down (in 5 mph increments I think). I think I set it once or twice at around 20 mph, and then you could knock it up to 30 using the steering wheel controls. I demonstrated it to my son and his mate, by setting it to 30mph, on a fairly busy road. It kept behind the traffic that was doing less than 30, and as we approached a line of statioanry traffic, the collision alarm came on, it started braking, and I lost my bottle and helped it! I am not sure if it will completely brake for you - I assume so, but was not prepared to test it. It will apply the brakes going down hill I believe. My only concern was wether it was lighting the brake lights when it made adjsutments. I guess this is easily tested with a friend following behind, but maybe somebody here can confirm? WRT flexibility, there are two buttons on the left hand side of the steering wheel controls that allow you to adjust the distance between you and the car in front. I think it is a scale of 1-4. I found I was using it on 1 (shortest) most of the time on the motorway - on 2-4, too may people were jumping into the gap between me and the car in front all the time. But then again, I currently drive a BMW, so I am used to sitting in the next car's boot.... :27: Hope this helps...