we have 2016 ford galaxy and it has this limiter that you can turn on or off. It knows the speed limit . If it is on it shows you the speed limit and you can set your limit to that, when the speed limit changes so does your limit. But you can override it anytime you want to but you are made aware that you are. Very good if you want to stick to the speed limit, e.g.30 in built up areas and also very useful on rural roads when often the speedlimit changes for no obvious reason. also very good on the 50 limit bits of motorway roadworks.