Re: Wrong question
I was driving through a town centre at a reasonable speed, well below the limit. A pedestrian stepped into the road without looking, and I went for the brake which I was ready covering. But by the time I got on the brake the car was already braking and stopping.
Though I believe I would have stopped in time, the car actually stopped about 3 metres before where the impact would have been.
In the event, the pedestrian hopped back out of the road, but I was very impressed by the car response and I always will have my own driving augmented by these aids - which will continue to improve. I will always use them because I am only human and not arrogant enough to believe I am an exceptional driver who will never make a mistake. Anything that adds to safety is to be welcomed.
And remember it's not all about you. Any time a poor driver or impaired driver could ram your car if there are no safety systems to prevent it.