I'm told changing kph to mph is a bit of faff and you can't do it yourself via the settings, it has to be taken into a garage (cost?). I've had a look through the forum but can't seem to find an answer.
Some things are only one step. Click on the little Save with a bookmark icon on the bottom right of the post next to Share.Next job - how to bookmark this thread on the new forum? So I can find it again.