BlueCruise in our Mach-E automatically changes the set cruising speed based on the detected speed limit, but I've yet to see autopilot do the same. It will quite happily set itself at 121kph in a 110kph zone (set for 10% over), and then continue this into a 100kph zone, and an 80kph zone... even though it has recognized the change in speed limit. Am I expecting too much, and this is just not a thing it does?