you still have to make reasonable progress up to the speed limit to pass your driving test and failure to get up to the speed limit with reasonable promptness is a cause for failure.The lorry point is very fair and more lorries have a sticker about speed limits which I think is very helpful especially as you can lose your licence and your livelyhood so easily.I still think any caravanner should try to keep near the legal limit to minimise the bad press we get or pull over and clear the back log and set off again,saying its my privilige to go as slow as I like just causes frustration and accidents
I agree with the comments you people are making.
I think that some of the problem also lies with inaccurately
calibrated speedo's - the thing that tells you how fast ur going,not the sports wear! (I'm just pre-empting the sarcasm!)
It seems to me that a lot of cars have speedometers that are usually calibrated on the slow side, in the region of 3-5mph.
Follow cars in a speed monitored section of a motorway and see how many do 43 - 45 mph in a 50 limit. This is why car drivers accuse truck drivers of exceeding 56mph .
If I check my car speedo against a sat-nav,it frequently reads 3 - 5mph faster than indicated by the sattelite.
Most truck drivers will observe that trucks limited to 56mph do exactly that.OK, there will be deviations due to tyre wear, but there's very little to choose between the majority.
However, all said and done,if you use your mirrors properly,you should be well aware if you're casuing a tailback, if you don't like receiving abuse or other motorists doing erratic manouevres,you pull over and let them get by.