2025 GMC Sierra HD: Power Meets Luxury
The 2025 GMC Sierra HD emerges as a game-changing heavy-duty truck, seamlessly blending raw power with sophisticated luxury. This latest iteration boasts a commanding 6.6L Duramax turbo-diesel V8 engine, delivering an impressive 470 horsepower and 975 lb-ft of torque, paired with a smooth-shifting 10-speed Allison transmission. Capability meets innovation with the Sierra’s enhanced ProGrade Trailering…
