For once, there is some good news coming out of Washington for people trying to buy a car. The federal government just finalized a major change to fuel-economy rules that could make it less expensive for automakers to build vehicles. The 2031 fleetwide target is dropping from the previous 50.4 mpg trajectory to 34.9 mpg. The Transportation Department estimates the change could reduce the average upfront cost of a new vehicle by about $1,300 and save Americans roughly $138 billion over five years. But the number that really jumped out at me is $60.6 billion. That’s the estimated reduction in technology costs for automakers through 2031. General Motors alone could…
