That part drives me nuts on freeway exits - I've even adjusted to just going to the left lane so I don't get nabbed by people exiting and slowing. I know that ACC won't stop, but I was just wondering how hard it would brake (say from 70 down to 40 or something). The collision warning sensor thing is another added precaution, which is nice. I'm quite happy with all of the driving aids and am actually looking forward to my now driving age daughter using the car (especially with the MyKey stuff). I can't stand driving my wife's van and when we replace it, the new car will have a similar feature. Out here in Montana there is just too much road distance to not have ACC-like features. Now I just need a replacement that is a hybrid, AWD, increased ride height (like a crossover) and ability to light-duty tow (golf cart on a trailer kind of thing).