Trump says new fuel economy rules will cut car prices. Analysts are doubtful. The Washington PostThe Trump administration weakens fuel efficiency standards for new cars NPRUS says GM tech costs to drop by $20 billion through 2031 due to new emissions rules Yahoo FinancePresident Trump & Transportation Secretary Duffy Finalize “Freedom Means Affordable Cars” Initiative to Reset Fuel Economy Standards, End Illegal EV Mandate Department of Transportation (.gov)What Trump’s rollback of fuel economy standards means for drivers PBS