GREENSBORO, N.C. — Mack has made some driver-friendly upgrades to its Granite and Titan models. Enhancements include: an optional center storage console with nearly one cubit foot of storage space; an ...

The interior is also revised with white stitching accents, new logo design and Titan embroidery for cloth seats. The PRO-4X also comes standard with a display screen, USB input and satellite radio.