Mack's LR truck is a heavy-duty class 8 truck, while the MD is a medium-duty truck available in either class 6 or class 7 ...

So, what better way for legacy auto manufacturers like Mack to show us they're still here to stay? Update their iconic bulldog ornament ... on the hood of the new Pioneer Truck.

Mack's bulldog hood ornament has been repositioned as an integrated design element, flanked by air intakes that aid in cooling and aerodynamic performance. The truck also debuts a new headlamp ...