Mack Trucks launched the Mack Granite Medium Heavy Duty (MHD) 4×2 model, offering a Class 7 or Class 8 solution for customers demanding a lighter yet rugged work truck. Introduced for the first time during the 2013 NTEA Work Truck Show in Indianapolis, the MHD 4×2, offered in a heavy-duty or medium-duty configuration, is the latest version of the Mack Granite MHD launched in 2011. www.macktrucks.com