Magenta line and North up
There's a case for a map to be used North up - makes it easier to read the writing printed on it.
I once had to hand-fly an aircraft, form the right seat, over ocean for 3 hours with the GPS set to North up. The problem was, the track was due South. Nearly did my head in, making opposite corrections to stay on track. OK, OK I was setting a heading to fly then referencing the GPS, but ever since then, I've been 'track up' with the GPS. After all, it's default mode in the car...
TOO