Yep. you can -
and how long till they rewrite the ECU code to do the equivalent EUMS download - though not on a cassette tape
from the car ECU.
all vehicles would end up with a 12 month loop of speeds and rev's data and link this into the diagnostics port with a coded downloader.
you sign for the car - go for it and give it back.
next Service the car goes in and the fitter plugs in the data unit, sucks all the data out to the MTO's computer.
it cross references to driver and you end up in the same position