Yes but if it measures your average speed and everyone on the motorway is doing 69 mph how the hell are you supposed to overtake, turn off when in the middle lane or outside, let someone off a slip road by moving out into the middle lane... Brake so your going slower than the inside lane or slower than the faster moving traffic? Makes perfect sence that, that will definatly cure congestion on our roads, take a look at the m25 dartford tunnle bound at 7:30 pm Saturday between a20 and a2 everyone is doing 50mph so the traffic just piles up then as you get passed the a2 junction its fine (well except in rush hour we the whole of the south east is trying to get into essex). If the germans can manage to make it work without speed limits, without tolls, without road tax - why can't we? Answer - We must like having something to moan about, wouldn't be brittish otherwise would it. :angry: