Immense Power and Performance

Under the hood, Sierra HD trucks come standard with a muscular 6.6-liter V8 gas engine cranking out 401 horsepower and 464 pound-feet of stump-pulling torque. Paired with a smooth-shifting Allison 10-speed automatic transmission, this potent powertrain provides the brawn to tow over 36,000 pounds when properly equipped - plenty of might for hauling equipment around San Antonio job sites or towing your boat out to Corpus Christi.

For even more power, an available Duramax 6.6-liter turbo-diesel V8 unleashes 470 horses and a whopping 975 pound-feet of torque, making easy work of moving massive payloads around Austin. Intelligently designed and battle-tested, this diesel engine provides uncompromising strength and endurance for your toughest assignments. And with an exhaust brake and integrated Power Take Off, it's ready to power any job you can throw at it. Finding the right powertrain option for your busy lifestyle in Corpus Christi is essential, so working with our dealership can help you secure the right heavy-duty truck. We have the full lineup of new GMC trucks for you to explore. GMC trucks typically offer a blend of daily driving capability and performance pros, while the ram lineup makes it easy for drivers in Victoria to consider themselves well-prepared for their next work trip. With premium interior offerings available as well, it's easy to confidently shop at Cavender Auto Country Buick GMC.

Rugged Yet Refined Interiors

While these heavy-duty rigs are capable, they also deliver surprising passenger comfort and amenities. Sierra HD are offered in spacious Crew Cab and Double Cab configurations, providing ample room for your whole crew or family. Premium materials, handsome designs, and attractive color schemes create an inviting cabin environment on your daily commute around Victoria.  High-end trims like Sierra Denali Ultimate spoil occupants with sumptuous full-grain leather seating, authentic open-pore wood trim, and dark aluminum accents. Oversized center consoles conveniently store all your gear, including hanging file folders to organize paperwork. With two 120V power outlets and 10-way power front seats, the interior doubles as a comfortable mobile office between job sites.

Trailering Technology and Driver Assists

To ease the stress of towing, Sierra HD offer a bevy of advanced trailering technologies. HD Surround Vision uses multiple cameras to provide up to 15 unique views around the truck and trailer, making navigating tight spaces around Corpus Christi easier. An available smart trailer integration system lets you control and monitor your trailer's vitals from the infotainment screen. These haulers also come loaded with driver assist and active safety technologies to enhance your awareness and confidence on the road. Available features like 

• Lane Change Alert with Side Blind Zone Alert
• Rear Cross Traffic Alert
• Automatic Emergency Braking

These tools help detect potential hazards and can intervene if necessary to prevent a collision - invaluable safety nets whether navigating rush hour traffic in Austin or backing up to a trailer.

Rugged Choices for Any Job

With 2WD and 4WD models, regular, double, and crew cab styles, and a range of trims from Pro to Denali Ultimate, there's an HD truck for any need or budget at Cavender Auto Country Buick GMC in Weimar. Visit our dealership serving San Antonio to Victoria to browse our Sierra HD inventory in person and see why these dominant heavy-duty pickups remain top choices for hardworking Texans who demand the best.