Autocar and Elgin Sweeper Jointly Demonstrate Their New Class 7 COE Fully Integrated Sweeper Truck at This Week's APWA Show in Denver, Colorado HAGERSTOWN, Ind., Sept. 22, 2011 (GLOBE NEWSWIRE) -- Autocar, the first name in alternative fuel and custom severe-service trucks, was pleased to demonstrate the new Autocar Class 7 COE vehicle at...