The Peterbilt Models 520 and 320 equipped with the Cummins ISL-G Near Zero engine have been granted eligibility for the California Air Resources Board (CARB) Hybrid and Zero-Emission Truck and Bus Voucher Incentive Project (HVIP).
Test Drive: Single-Rear-Axle Granite MHD
Photo Gallery: Senior Editor Tom Berg took the Mack Single-Rear-Axle Granite MHD for a test drive.