The 2012 GMC Sierra 2500HD is a dependable and capable heavy-duty pickup truck. There are four trims available: Work Truck, SLE, SLT, and Denali, all of which can be paired with either a 2WD or 4WD drivetrain. Under the hood, there are two engine options: a standard Vortec 6.0L V8 that produces 360 horsepower and 380 lb-ft of torque or a stronger Duramax 6.6L turbo-diesel V8 engine that generates 397 horsepower and 765 lb-ft of torque. A six-speed automatic transmission is standard for all trims. The standout features of the 2012 Sierra 2500HD include its trailering and towing capabilities. Inside the cabin, there's an easy-to-use infotainment system, which unfortunately lacks more modern amenities like Apple CarPlay or Android Auto. Standard safety features such as ABS and stability control are present, but advanced safety tech like adaptive cruise control or lane-keeping assist are not available.