what about having a blank retroreflective tape and just getting vinyl lettering to stick on and change it when you want a different one? My "James Bond" idea w

what about having a blank retroreflective tape and just getting vinyl lettering to stick on and change it when you want a different one? My "James Bond" idea was to have a car with cameras front and back that could read the plates of the vehicles to either side. Then, the plate would be a retroreflective panel with an active LCD overlay.. you could change your plates to whatever you wanted, and the car could have a 'stealth' mode, where when you drove behind a car, your rear plate would match theirs.. and from the front, your plate would match the car behind.