I wonder if it makes more sense to just add a tax on tires. Tire wear for most vehicles should be proportional to actual weight [1] and mileage, modulo tire quality. So just slap a tax on each tire quality type and there is no need for a system to record the mileage and weight of every car.
[1] Commercial vehicle weight is strongly determined by the cargo load.
Hey, at least this isn't a comment section about the states, which rate safety based on how the driver fares in a collision! Which would mean the people least likely to be hurt are the ones that are trying to cheat the tax, and the ones injured or killed are external to the vehicle.
Except of course it is: Americans externalizing costs to save a buck seems to have become endemic
[1] Commercial vehicle weight is strongly determined by the cargo load.