https://www.vice.com/en_us/article/a3577k/the-private-surveillance-system-that-tracks-cars-nationwide

In just a few taps and clicks, a secret surveillance infrastructure created by a private company can show any user on its interface where a car has been seen throughout the U.S.

With an private investigator industry source, Joseph Cox showed how a powerful system called the ‘Digital Recognition Network’ (DRN) and made by an American company of the same name, is used by repossession agents, private investigators, and insurance companies to track cars in the U.S.