Highway 401 in Ontario, Canada runs from Windsor all the way across to the Quebec border and on to Montreal. Since the 1970s, the speed limit has been 100 km/h (about 62 mph), but actual average speeds along long stretches in the rural southwestern part of the province are often considerably higher, leading to the nickname Ontariobahn.
LOL, I once talked to some Americans who travelled Highway 401 and were heading back to the US. They were really confused about the speed limits up here. They knew we used km/h up here but on the 401, everybody seemed to be doing 100 mph, not the posted 100km/h. All I could say was "well, it's 100 km/h but it isn't strictly enforced in some places." Welcome to the Ontariobahn.