The 2021 GMC Sierra Cab Chassis 4WD is a heavy-duty truck designed for towing and hauling, equipped with a 5.3L V8 engine and a 6-speed automatic transmission. As a special-purpose 4WD vehicle, it offers rugged capability for demanding tasks, running on regular gasoline. While its size and power cater to work-focused needs, its features may appeal to drivers seeking durability and performance.
