...Lives Per Gallon author Terry Tamminen says, "Americans subsidize the oil and auto industry to the tune of about $6 or more for every gallon of gasoline sold, making the real price at the pump $10 per gallon."

Tamminen also says it's difficult for "alternative fuels to compete against such massive subsidies, until mass-production of alternative fuels (and vehicles that use them) can bring the price down...LINK