There was a big road map guide of the UK printed where it was all upside down too cos when you are on the road traveling south you can orientate the map along the direction the car is going and things on the left on map are out of left window instead of having to swap it over in your mind. So when your co-driver navigator is there looking at the map and says take next left they really meant take next Easterly junction exit but if they are a bit slow then they probably would mean take next Westerly exit.

Of course with GPS that all went into the shredder and there are no more navigator rows from taking the wrong exit, you now just have to wait until a crane comes to pull out the articulated lorry in front of you from the low arch bridge cos he was using his GPS instead of a map.