The 2015 GMC Sierra 2500 is a reliable and powerful pickup truck designed to meet the toughest demands of its drivers. Under the hood, it is powered by a Vortec 6.0L Flex Fuel V8 engine that delivers 360 horsepower and 380 ft. lbs. of torque, providing you with the power you need to get the job done.As for its factory default features, the 2015 GMC Sierra 2500 comes with a wide range of advanced technologies designed to enhance your driving experience. These include a 6-speed automatic transmission with overdrive and tow/haul mode, a heavy-duty locking rear differential, and a fully-boxed frame with a hydroformed front section.In terms of comfort and convenience, the 2015 GMC Sierra 2500 comes with a number of features that make your ride more enjoyable. These include a 6-speaker audio system, a 4.2-inch diagonal color display, a rear vision camera, and a 60/40 rear folding bench seat.Other notable features of the 2015 GMC Sierra 2500 include a tire pressure monitoring system, a trailer brake controller, and an external engine oil cooler. All in all, this pickup truck is a great choice for anyone looking for a reliable and powerful vehicle that comes with all the essential features needed for a comfortable and convenient ride.