The UK Calis show KM/H on the digital display, but everything else in in Miles.
I think there is some legal requirement for us to show MPH and KMPH, in the old days they would put both numbers around the big analogue dial, but now we have digital displays we can have a cleaner analogue dial.
If you have VCDS you can mess around with these settings and change the KM/H to Miles/H - which is probably illegal, but I think you would need an MOT inspector with eagle eyes to spot it.
When you drive abroad the KM/H display combined with the RNS510 speed limit display is a godsend.
T