As the French say "ne pousse pas sur le champignon" (don't push the mushroom/accelerator)! About time too, I must say. I recall rolling along the motorway at around 140km/h (already a little over the max speed limit) and being overtaken by Dutch and English vehicles - WITH caravans attached! This link will tell you what can happen in the future: http://www.thisfrenchlife.com/thisfrenchlife/2008/10/speeding-driver.html