Re: No car tax?
in the USA the car license fees (and taxes) are handled by departments of motor vehicles. In Cali-Fornicate-You, they issue a sticker that you put on your license plate. Some states issue new license plates every year (or used to). Your car gets cited if the sticker is observed to be out of date. And each year's sticker is a different color so it's easy to see from a distance.
The sticker system works pretty well, actually. I'm not sure what a paper disk looked like, but if it was placed in the car windshield it would be a similar kind of system.
now, if Cali-Fornicate-You would just STOP IT with the tax increases I'd be a lot happier...