The UK has stated that the current mileage check within the annual roadworthiness test will supply this data.

A clear weakness is that mileage readings can be altered. This used to matter on a smaller scale: dodgy second-hand sales, but now more or less anyone could be considered as potentially incentivised to interfere.

The mileage must remain a changeable field since the recording component may need replacement, for example, after accident damage or to correct a fault in the assembly that recording memory is part of.