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2015 GMC Sierra 3500 Overview

The 2015 GMC Sierra 3500 belongs to the third generation of Sierra, with a range of powerful options for hauling and towing. This heavy-duty pickup offers a choice between a 6.0-liter V8 FlexFuel engine that delivers 360 horsepower and a 6.6-liter V8 turbo-diesel engine producing 397 horsepower. Both engines are paired with a 6-speed automatic heavy-duty transmission, offered with either rear-wheel-drive or a four-wheel-drive system. The Sierra 3500 comes in three well-equipped trims: the base, SLE, and SLT, with varying degrees of comfort and convenience features. Key safety features include StabiliTrak with Traction Control, Proactive Roll Avoidance, and an array of airbags. The Sierra 3500 also benefits from GMC's IntelliLink infotainment system with a 4.2-inch color display as a standard.

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