Performance and Capability Under the hood, the 2020 Sierra 1500 AT4 offers compelling power and efficiency with its standard 2. Dual-zone automatic climate control for personalized comfort.
2020 GMC Sierra 1500 AT4 Infotainment and Comfort Features Overview
7-liter turbocharged four-cylinder engine, producing 310 horsepower and 400 lb-ft of torque. 7L Turbo I4 6.
Available 12-speaker Bose premium audio system. 18-inch polished aluminum wheels shod in all-terrain tires.
2020 GMC Sierra 1500 AT4 Infotainment System Features and Performance Integration
The cabin is remarkably quiet for a full-size truck, thanks to improved insulation and the engine’s refined operation, creating a serene environment for daily commutes or long road trips. Body-colored grille inserts and door handles for a cohesive look.
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