[kbennkc]

We had tach charts in our trucks decades ago . They precisely record your road speed , engine speed ,Time and mileage .
They were made unpopular by the efforts of the insurance industry to make it more difficult to reconstruct accidents to protect big trucking companies .
The new stuff will be mandatory and Obambi types will likely implant it in your head .

[Niteranger68]

Were those the devices known as “tattlers”?