No, driving farther has nothing to do with the wear on the roads. It's already been said many times here that the weight of the vehicle is the direct cause (and mother nature). Putting all of that aside, are we going to ignore that a mileage tax is a form of DOUBLE TAXATION?! I already pay the tax on the extra gasoline I have to buy for my commute. When do people say enough is enough?! We need taxes, sure, but who is accountable for where the money is going and what constitutes a double tax? I can guarantee you that the money won't go to where you think it should (DOT in this case), and _that_ is the reason they are running a shortfall here, not because people aren't buying enough gasoline.