Not sure if anyone's replied to this in the subsequent four pages, but it does my nut in . The reason is, because it's not a frigging 'fast lane'. There isn't a fast lane or a slow lane. There's a lane for driving in, an overtaking lane, and a second overtaking lane. If chappy is doing 50mph in lane one, and chappette is doing 60mph in lane 2, overtaking, then chapsmash is perfectly entitled to overtake at 65mph in lane 3.
Good points blunther. How many people actually follow that rule though? I see cock ends - albeit typically in Audi's and BMW's (but that is another conversation :-) ) stuck in the "fast lane" of the motorway as some god given right in their opinion. The rules that you pass your test on say that you should return to the left hand lane , but the reality is that many don't.
Indeed, and that's what needs sorting out if we want the motorways to go faster. Can't see this making any real practical difference at all. more police on the roads pulling over middle lane hogs and sending them on courses like they have for speeding (or just shooting them - fine with that too) seems to make more sense. But then a camera can't pull someone over, so unlikely to happen.