k wrote: ] I guess my question is, why do you need a GPS to track ] mileage? Doesn't my car already do that? Stop thinking Kerry. Its not allowed. Actually the answer is that with the GPS stuff they can tell if you cross a bridge or are driving in rush hour and bill you extra for those things. It will let them get rid of the toll booths on the Bay and Golden Gate that can make SF feel like LA. RE: CBS News | States Mull Taxing Drivers By Mile |