See Inside Mack's New Next-Gen Keystone Semi-Truck
By Mark Cowley
Published on March 17, 2026.
Mack has unveiled a new model of semi-truck, the Keystone, designed to compete with existing models. The vehicle has been given additional ground clearance and an all-terrain suspension. The interior features a flat-bottomed steering wheel designed to make long hauls more comfortable for larger people. While standard features are available, extras like a digital mirror system are also available.
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