Been using TACC more recently due to muck on some roads at this time of the year making AP less reliable. Curiously I found that changing the setting on the cruise stalk from 1-7 makes no difference to tthe following distance with TACC. The cruise is still working actively as it will vary speed according to the vehicle in front but only at a fixed (and too close for my preference) distance. I assume everyone else has the same behaviour. I don't understand why this is. Can somebody explain the logic to me please.