OK, here's a random question that I'm almost certainly overthinking - I've read that PR uses km for road markings but mph for speed limit signs. So, when printing out my GoogleMaps, should I use metric or Imperial?

I ask because some newer cars only have one scale on the speedometer that is switchable, rather than showing both mph and km/h on two different scales (not that I can't do the math, but...) I assume the odometer be switchable? We've reserved a Fullsize, which I think is going to be the Camry.