"Elevate your driving experience with the exceptional 2026 GMC Sierra 1500 AT4. This powerful and versatile truck is engineered to conquer any terrain, while delivering uncompromising style and comfort. Packed with a robust 6.2L V8 EcoTec3 engine, the Sierra 1500 AT4 boasts an impressive 420 horsepower and 460 lb-ft of torque, providing you with the muscle to tackle any task. Complemented by a 10-speed automatic transmission and 4-wheel drive, this truck is ready to take on the toughest challenges with ease. - 6.2L V8 EcoTec3 engine with Dynamic Fuel Management - Premium Bose 7-speaker sound system - Heated and ventilated leather seats - Multicolor 15"" diagonal head-up display - Wireless Apple CarPlay/Android Auto - Wireless charging - Integrated trailer brake controller The Sierra 1500 AT4 also comes equipped with a host of advanced safety features, including Automatic Emergency Braking, Forward Collision Alert, Lane Keep Assist, and Rear Cross Traffic Braking, ensuring you and your loved ones can travel with confidence. Elevate your driving experience with the 2026 GMC Sierra 1500 AT4. With its exceptional performance, premium amenities, and advanced safety technologies, this truck is the perfect companion for your next adventure. Why buy from Greg Lair GMC Greg Lair GMC is locally owned and operated and has been serving customers in the Amarillo, Lubbock, Clovis and surrounding panhandle and Tri-State area for over 30 years! You are our first priority! Greg Lair is home of the FREE LIFETIME POWERTRAIN WARRANTY for vehicles in our inventory with less than 100k miles on them at time of sale for your peace of mind! Our sales and service staff are friendly and knowledgeable and ready to provide you with a hassle free purchasing experience! At Greg Lair GMC all of our vehicles undergo a thorough multi-point vehicle inspection by certified GM Technicians to ensure that your next vehicle meets or exceeds industry performance and safety standards! Call or come by today for your very own personalized demonstration of the finest vehicles on the road today!"