| ] He also pays a lot less in gasoline taxes which fund] highway projects and road repairs. As more and more
 ] hybrids hit the road, cash-strapped states are warning of
 ] rough roads ahead.
 ]
 ] Officials in car-clogged California are so worried they
 ] may be considering a replacement for the gas tax
 ] altogether, replacing it with something called "tax by
 ] the mile."
 ]
 ] Kim and his team at Oregon State University equipped a
 ] test car with a global positioning device to keep track
 ] of its mileage. Eventually, every car would need one.
 Question: We're discouraging fuel efficiency. Why not just raise the damn gas tax? Answer: Because this way we get to install tracking devices in every car! You might win a debate with the cops about this but you'll never win a debate over tax revenue. CBS News | States Mull Taxing Drivers By Mile |