When you are used to drive by true GPS speed, the people going by the often 10 kmh lower speedo speed, stand right out.
Worst part those people, essentially driving 70 kmh on a 80 kmh limit highway, you cant pass easy, as going over the limit to overtake is not allowed,,, but i have to admit i do that some times, not least if the person are going back and forth between actual 70 and 60 kmh.
And i am the kind of person that dont feel terrible bad about braking laws i find silly or down right stupid,,,,,, and i am willing to not whining face the consequences of that any time.