The *2025 GMC Sierra 1500 AT4 4WD Crew Cab Pickup* offers a remarkable blend of luxury, capability, and efficiency, powered by a *Turbocharged Diesel I6 3.0L engine*. This advanced engine delivers exceptional torque and fuel efficiency, making it ideal for both towing and long-distance drives. Paired with a *10-speed automatic transmission*, the Sierra AT4 is built to conquer rugged terrain or provide a smooth highway experience. Designed with off-road enthusiasts in mind, the AT4 features a *factory-installed two-inch suspension lift*, *off-road suspension package*, and *skid plates* for extra protection. It also comes equipped with *Goodyear® Wrangler DuraTrac® tires* and an *AutoTrac® 2-speed transfer case*, ensuring maximum traction and control in all conditions. Inside, the cabin blends premium materials and cutting-edge technology. The *Jet Black interior with Kalahari accents* adds an upscale feel, while *heated and ventilated leather seats* and a *heated steering wheel* ensure comfort in any weather. The *13.4-inch touchscreen infotainment system* offers seamless connectivity with *Apple CarPlay®*, *Android Auto?*, and *Google Built-In?*, alongside features like *navigation*, a *Bose® premium sound system*, and a *360-degree HD Surround Vision camera system* for superior convenience and safety. The *MultiPro? Tailgate* enhances cargo versatility, while the *Advanced Trailering System* simplifies towing. With bold styling, unmatched off-road performance, and modern amenities, the 2025 GMC Sierra 1500 AT4 is engineered to excel in every aspect of your lifestyle.