State mulls pay-by-mile gas tax in response to fuel-efficient cars

State mulls pay-by-mile gas tax in response to fuel-efficient cars | Local & Regional | Seattle News, Weather, Sports, Breaking News | KOMO News: "SEATTLE -- Cars are becoming more and more fuel-efficient, and you would think that's a good thing. But Washington state is actually losing money because of it and as a result, the state is now considering a "pay-by-mile" tax."