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2025 GMC Sierra 3500 AT4 The 2025 GMC Sierra 3500 AT4 in Onyx Black is a formidable presence on the road, blending rugged capability with a touch of luxury. Its imposing stature is accentuated by the dark exterior and aggressive design cues that define the AT4 trim. Engineered for demanding tasks, the Sierra 3500 AT4 is powered by a robust 6.6L Duramax Diesel engine, delivering exceptional torque and horsepower. Mated to a smooth-shifting 10-speed Allison automatic transmission, this powertrain combination ensures confident acceleration, heavy-duty towing capacity, and efficient operation. Designed to excel in both work and off-road environments, the AT4 boasts a range of features tailored for adventure. The innovative MultiPro tailgate enhances versatility, while the power retractable assist steps and robust front recovery hooks demonstrate the truck's capability. The 20-inch high gloss black aluminum wheels not only contribute to the truck's aggressive aesthetic but also provide a solid foundation for off-road endeavors. Inside, the Sierra 3500 AT4 offers a blend of comfort and technology. The Jet Black/Kalahari interior creates a sophisticated atmosphere, while the spacious cabin ensures ample room for occupants and cargo. A large 13.4-inch touchscreen serves as the command center for the vehicle's infotainment and connectivity features, while a 12.3-inch digital driver information center provides essential vehicle data. Enhancing comfort and convenience, heated seats and a heated steering wheel are standard, and the available Bose audio system delivers an immersive listening experience. Safety is a paramount concern for GMC, and the Sierra 3500 AT4 is equipped with a suite of advanced driver assistance technologies. Features such as Forward Collision Alert, Front and Rear Pedestrian Alert, Lane Keep Assist with Departure Warning, and Following Distance Indicator provide an added layer of protection for drivers and passengers.   In summary, the 2025 GMC Sierra 3500 AT4 is a formidable heavy-duty pickup truck that seamlessly blends power, capability, and technology. Its robust construction, advanced powertrain, and sophisticated interior appointments make it a compelling choice for those who demand the best from their vehicle. AMVIC LICENSED DEALER

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