Auto manufacturers are currently offering flex-fuel vehicles that are designed to run on ethanol gasoline mixtures. An economist recently analyzed the cost versus value consideration of these vehicles and found that the market is currently buying approximately the socially efficient amount of flex fuel vehicles. Under lobbying pressure from the car manufacturers and environmental groups, the federal government is considering a $3,000 subsidy paid per flex fuel vehicle sold. If this subsidy goes through, what would be the most likely impact on market efficiency?.