(Unfortunately) that's not true. All road distances are Miles here in the UK. By this I mean road signs, maps, vehicle speedometers and trips, etc.

I wish we did use Km - I just spent a couple of months riding my motorcycle around Europe, and metric everything just felt so much more intuitive.

Distances and speeds on our road system are always measured in miles. As such most British people generally have a much stronger intuition of Miles than they do Kilometres (except strangely runners who quite often use Kilometres).

Not in all cases. Distances of such length are almost always measured in miles here.