President Donald Trump inaccurately tweeted that his fuel efficiency plan would reduce the cost of cars “by more than $3000” and make them “substantially safer.” Even going by his administration’s analysis — which many experts doubt — he inflated the savings and is wrong about car safety.
We unpack the complicated and contentious world of fuel economy standards, and explain why some experts aren’t buying some of the Trump administration’s arguments for why stricter Obama-era standards should be loosened.