USPS Testing Karsan Plug-in Hybrid Mail Truck
By Carly Schaffner – March 05, 2018 The U.S. Postal Service is testing a prototype of a plug-in hybrid mail truck from Karsan Otomotive, a Turkish truck maker. The truck, one of a series of prototypes from five different manufacturers competing to build the next mail truck, is undergoing tests on pavement and rural dirt…