If someone has been fucking around with the stalks or pressing buttons in settings it’s easy to knock a car out of miles and set to KM

Isn’t 9000 miles = 15,000 km so it’s right

If the vehicle has been for a MOT a test and Speedo was set to KM and not miles it’s bang on correct. The pass certificate will also say KM also so it’s noted it’s not in miles.