It's not a new idea, Tachographs have been around in trucking for many decades. Just a paper disk that gets inserted behind (usually the RPM indicator I think)

It's not a new idea, Tachographs have been around in trucking for many decades. Just a paper disk that gets inserted behind (usually the RPM indicator I think) the instrument cluster. The driver writes name/date on one, puts it in and it logs the speed, braking for the driven hours. Sort of like an old-school seismometer scratching out the lines. https://en.wikipedia.org/wiki/Tachograph https://en.wikipedia.org/wiki/Tachograph