Buyers love rugged light-duty trucks like the Ford Raptor, Ram Rebel, and Chevrolet Silverado Trail Boss. So, it only makes sense that some companies have extended those same (or similar) packages to their heavy-duty truck lineup, too. Already there’s the Ram Power Wagon, Ford Super Duty Tremor, and Nissan Titan XD Pro-4X. And now GM has its own entry: the GMC Sierra HD AT4.
The Sierra HD AT4 (like all AT4 models) couples rugged exterior styling and off-road chops to a well-equipped cabin loaded with good optional tech. But because the Sierra’s competitors offer more in the way of safety, and because GMC has the priciest truck of the bunch (our tester costs a whopping $77,555), the HD AT4 feels like a less compelling choice in a class stacked with better alternatives.
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https://www.motor1.com/reviews/404057/2020-gmc-sierra-2500-at4-diesel-truck-review/
