Feel free to ruffle. I mean that if its a dry, clear day on an A road or Motorway what is the point of doing 50 or 60? Or even less, I have come across some twerp doing 40!! on the M1. Its very dangerous as people arent expecting it and as they slow people behind them jam on their breaks and cause accidents. There is a reason farm traffic and other categories of vehicle arent allowed on motorways and its because they are too slow!
farm traffic not meant to use motorways here as well but they do! ,that said some of the modern tractors go faster than twerp noggys in volvos and mercs, I even managed to overtake a Volvo s70(s60 dont know my cars that well) with my ATV! Yes you can use ATV`s on roads here .

.. good outcome though