Canadian cars use KPH because they’re required to by law. My Canadian Hyundai showed the temperature in F when it was new off the lot and every time I disconnect the battery, and there’s a crazy secret set of button pushes I have to do in a particular order to switch it back to C which I can never find.

A lot of things in Canada are imperial because of the influence of the US. The Ontario building code says when framing a house, wooden studs need to be on 406.4mm centers. That sounds like a really weird number, until you realize it’s actually 16”. It has to be metric, but it also has to evenly divide 4 feet, because drywall here is 4 feet wide so we can import/export from/to the US.