GMC and Chevy have steadily been releasing special versions of the recently redesigned Sierra and Silverado, respectively. A while back, the former gained a new All Terrain Package to add a little ruggedness to the pickup, and today, GMC revealed and even more hardcore All Terrain X Package.
As its name implies, the All Terrain X Package builds upon the All Terrain Package, which is available with the Sierra SLT crew cab, short bed. The base package toughens up the Sierra with four-wheel drive, an Eaton locking rear diff, rear-park assist, a blacked-out grille, body-color bumpers, LED taillights, Hill Descent Control, and more. Inside, this package includes heated bucket seats, and a unique instrument cluster.
Adding the X to the base package bumps the Sierra into a new level of off-road capabilities. This model gains 18-by-8-inch black aluminum wheels wrapped up in 265/65R18 Mud-Terrain Goodyear Wrangler DuraTrac rubber, black sport side steps, a black bed-mounted sport bar with off-road LED lighting, LED headlights, body-color door handles and body-side moldings, black mirrors, belt molding and B-pillars, and more.
What really makes this rough-and-tumble Sierra shine is its performance exhaust system, which drops back-pressure by 33 percent. Not only does this give the 5.3-liter V-8 powerplant a nasty growl, but it also bumps its output to 365 horsepower—a jump of 10 ponies.
GMC hasn’t announced official pricing for this new package, but it’ll like be just a few grad more than the $2,480 All Terrain Package. This new version of the Sierra will hit dealers in the spring of 2016.