Body and Interior Catch up to New-For-2011 Chassis - MotorTrend Magazine

While 2015 Chevrolet Silverado HD and 2015 GMC Sierra HD models use essentially the same cab and beds as the 1500 models, the front ends feature larger grilles with chrome trim and cooling intakes, a new hood and headlights, and chrome bumpers. Improved cooling ability comes from a new sealed front end that uses cooling air more efficiently as well as the engine air intake located outside of the hot engine compartment to better maintain power levels while hauling and towing in hot weather. The 2015 Silverado HD and Sierra HD models also get a similar interior layout to their light-duty counterparts, with more space and storage options. Safety features include available Driver Alert Package (Forward Collision Alert, Lane Departure Warning, Safety Alert Seat), rearview camera, front and rear park assist, side curtain and seat-mounted side airbags (standard on 2500, optional on... Towing features include standard trailer-brake control and StabiliTrak with trailer sway control, hill-assist start, hill descent control, and cruise control with grade braking and exhaust braking on diesels. For 2015, the powertrains of the Silverado HD and Sierra HD are unchanged. The gas-powered 360-hp 6. 0-liter V-8 with 380 lb-ft of torque remains the base engine, while the 397-hp, 765 lb-ft 6. 6-liter Duramax turbodiesel V-8 is optional. Source: www.motortrend.com