[deltoidmaximus]

Modern cars are full of phone home shenanigans, many of them with cameras and ToS that allow them to observe everything and sell all of the data to anyone that can rub two cents together. IIRC laws coming into effect next year mandate even more of it. If Americans care about privacy of their cars they have a funny way of showing it. The odometer read would actually be a great privacy improvement compared to that.

I think they should just tax tires. It sounds easier to administer and if it was a natural tax it would alleviate the main weakness it seemed to have: That's you buy your tires in the state with the lowest tire tax.