Fishrrman "drives like a brand-new car!™" prediction:
At a future date, a vehicle owner will be restricted to xxx amount of "tire emissions" per year.
Of course, the only way to do that will be to restrict the number of miles driven per year.
Over-miles will be allowed. However, the vehicle owner will be monitored (by government-approved monitoring devices), and "over-miles" will be taxed at a government-assigned rate, with the rates increasing proportionally as the number of miles traveled goes up...