GMC revealed the unique Sierra 2500HD All Mountain Concept last year at the 2017 Los Angeles auto show. The truck features Mattracks tracks instead of wheels for ultimate traction in the snow that are driven by a 6.6-liter turbo-diesel V-8 that*makes 445*hp and 910 lb-ft of torque*managed by a six-speed automatic transmission. “With GMC’s focus...
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WATCH: Behind the Wheel of GMC’s Mattracks-Equipped Sierra 2500HD All Mountain Concept appeared first on
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WATCH: Behind the Wheel of GMC’s Mattracks-Equipped Sierra 2500HD All Mountain Concep
