U.S. Postal Service urged to choose electric delivery trucks

U.S. Postal Service Grumman The current fleet of delivery trucks used by the United States Postal Service have stood the test of time, but their high maintenance costs mean it's time to retire the iconic boxy vehicles. The USPS began soliciting bids in 2016 and five finalists now remain in the running: they are Workhorse/Hackney, AM General, Karsan, Mahindra, and Oshkosh...