Yes most if not all car speedometers read over the actual speed your traveling at
As they are not calibrated(Except traffic police cars) like Lgv/Psv's or any onther vehicle fitted with a tachograph are, So when you are in roadworks on the motorway you know those 40 or 50mph limits and you have a lorry or coach chewing off your rear bumbper check your speedo chances are that your only doing under the speed limit by 5-7mph but your speedo will tell you 40 or 50 , this inacuracy increases the faster you drive ,
Also if you seriously think that almost every lorry driver is going to risk his /her vocational licence through speeding then you must be very dumb, like the muppets that try and play policemen by pulling in front of a 44t lorry and purposly slowing down,to prevent the lorry making progress, When the lorry wasn't speeding in the first place, there's far too many looney's with driving licences these days on our roads
So what i describe happens to you maybe you should increase and mantain your speed a little so your doing 50, or hang up your keys
Just a thought what has this got to do with the title of this thread?
Edited by tommy45 (Fri 17-Apr-15 12:56:04)