Unveiling the 2025 GMC Sierra 1500

August 30, 2025 · 3 min read

A popular choice for drivers, 2025 GMC Sierra 1500 makes things challenging for other full-size pickups by combining strong performance and versatility with cutting-edge technology.

Strong Gas and Diesel Engines

Pairing to an eight-speed automatic transmission, this edition's base engine is the 2.7-liter TURBOMAX, which is both fuel-efficient due to its smaller size and turbocharged, allowing it to deliver 310 horsepower. If you plan to tow trailers or campers, two other engines can both pull up to 13,200 pounds when the truck's fully equipped: a 420-horsepower 6.2-liter V8 and a 305-horsepower 3.0-liter turbo-diesel I-6 that offers up to 29 MPG in fuel economy.

The largest engine, a 420-horsepower 6.2-liter EcoTec3 V8, comes standard in Denali models along with an active dual exhaust, which allows you to switch between Quiet Mode for peaceful drives and Sport Mode for a sportier, more aggressive sound. It also comes with a Performance Air Intake System for enhanced response.

Versatile With a Rugged Design

A capable 4x4 system comes standard with the AT4, AT4X, and Denali Ultimate trims and is available for all others. The included Hill Start Assist feature provides more stability on steep inclines, and you can easily tackle snow-filled roads with the available Snow Plow Prep Package. Adaptive on pavement as well, the Denali Ultimate trim comes with Adaptive Ride Control, which can adjust the vehicle's ride height and damping as needed.

Skid plates, off-road tires, a lifted suspension, all-terrain tires, and off-road assist steps can be found on select trims, and recovery hooks are available if you should get stuck or need to bail another vehicle out of trouble. This edition offers the available GMC MultiPro Tailgate, which has multiple load-stop and gating functions for securing cargo.

Interior Amenities and Technology

Comfort meets convenience inside, as power windows with rear express-down, assist handles, an outside temperature display, and single-zone climate control with rear air vents come standard in the base trim. Many upper trims have dual-zone climate control instead, as well as heated and ventilated front seats, a heated steering wheel, and heated rear seats. In many of these trims, you can also opt for a console-mounted safe, rear under-seat storage, an auto-dimming rearview mirror, and a rear window defogger.

The heart of this truck's many advanced tech features is its GMC Infotainment System, which lets you stream audio and video from smartphones using a Bluetooth connection. This system also has Google Built-In services in upper trims, and there's a Wi-Fi hotspot in every model that can be used when opting for an internet data plan. StabiliTrak, cruise control, the HD Rear Vision Camera, and Forward Collision Alert with Automatic Emergency Braking are just some of many included driver-assist highlights.

While the features covered are impressive, there's much more to see from behind the wheel. Reach out to us today at Holloway GMC in Portsmouth, NH.

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Dec 30, 2025 in 2026 GMC Sierra 1500

2026 GMC Sierra 1500 Trims: Which One Is Right for You?

The 2026 GMC Sierra 1500 is redefining the standards of pickup trucks with its impressive lineup of trims, each designed to cater to different needs, preferences, and lifestyles. From rugged off-road capabilities to luxurious interiors, there’s a Sierra 1500 for everyone. Let’s dive into the details of the 2026 GMC Sierra 1500 trims and help you choose the best fit for your needs in Portsmouth, NH. more An Overview of 2026 GMC Sierra 1500 Trims The 2026 GMC Sierra 1500 lineup features eight distinct trims, each offering unique capabilities and features. Whether you're an adventure seeker, a luxury enthusiast, or someone who needs a dependable workhorse, this GMC pickup truck lineup has you covered. Pro: The base trim comes equipped with a TurboMax engine delivering 310 horsepower and 430 pound-feet of torque. It’s a reliable option for those who need a robust truck at an entry-level price. SLE: Adding more comfort and technology, the SLE includes a 13.4-inch touchscreen, heated front seats, and a 12.3-inch Driver Information Center. Elevation: This trim stands out with monochromatic styling, 20-inch gloss-black wheels, and available leather-appointed seating. SLT: Featuring a 5.3-liter V8 engine, chrome accents, and advanced trailering systems, the SLT is ideal for those seeking added power and sophistication. AT4: Built for off-road adventures, the AT4 includes a two-inch suspension lift, skid plates, and all-terrain tires. AT4X: Taking off-road capabilities up a notch, the AT4X adds front and rear electronic locking differentials, Multimatic DSSV dampers, and a luxurious interior. Denali: A hallmark of GMC luxury, the Denali offers premium materials, a signature chrome grille, and available Super Cruise hands-free driving technology. Denali Ultimate: The pinnacle of luxury, this trim features 16-way power seats with massage, a 12-speaker Bose system, exclusive design elements, and standard Super Cruise. With such diversity, the Sierra 1500 trim comparison reveals a truck for every driver in Portsmouth, NH. Key Features That Define the Sierra 1500 The 2026 GMC Sierra 1500 is more than just a powerful truck; it’s a showcase of advanced innovation and thoughtful design. Some standout GMC pickup truck features include: Super Cruise Technology: Available on higher trims, this hands-free driver assistance system is perfect for navigating long stretches of highway. 14 Camera Views: Maneuvering a truck has never been easier with up to 14 camera views for parking and towing. MultiPro Tailgate: The world’s first six-function tailgate makes loading and unloading cargo effortless. Duramax Engine Options: The available 3.0-liter Turbo-Diesel engine offers unmatched torque and fuel efficiency for heavy-duty tasks. Interior Craftsmanship: From perforated leather seating to real wood accents, the Sierra’s interior is designed with comfort and style in mind. Portsmouth, NH drivers looking for a truck that combines capability with cutting-edge features will find the 2026 Sierra 1500 hard to resist. Choosing the Best Sierra Trim for You Selecting the right trim depends on your lifestyle and how you plan to use your truck. Here are some scenarios to help you decide: If you’re looking for an affordable work truck with essential features, the Pro or SLE might be the perfect option. For adventurous drivers who love tackling rugged terrains, the AT4 or AT4X offers unparalleled off-road capability. If luxury and technology are your top priorities, the Denali or Denali Ultimate provide premium amenities to elevate your driving experience. For those who want a stylish yet practical truck for daily use, the Elevation or SLT trims balance aesthetics with performance. Regardless of which trim you choose, the 2026 GMC Sierra 1500 ensures you’ll have a reliable and feature-packed vehicle. Find Your Perfect Sierra 1500 in Portsmouth, NH The 2026 GMC Sierra 1500 trims offer something for everyone, from hardworking professionals to thrill-seeking adventurers. With its innovative features, powerful engines, and luxurious options, this GMC pickup truck is ready to handle anything life throws your way. Visit Holloway GMC in Portsmouth, NH to explore the impressive Sierra 1500 lineup and discover why it’s the best Sierra trim for your needs.

Aug 11, 2026 in GMC Trims

GMC Denali vs. AT4 vs. Elevation for New England Driving: Which GMC Trim Is Right for You?

When shopping for a new GMC vehicle, choosing the right trim level can be just as important as choosing the right model. GMC offers several trim options designed for different types of drivers, including Elevation, AT4, and Denali. For drivers in New England, the right GMC trim often depends on how you use your vehicle. Do you need something comfortable for daily commuting? Are you looking for added capability during winter weather? Or do you want a premium driving experience with advanced features? Understanding the differences between GMC Denali vs. AT4 vs. Elevation for New England driving can help you choose the GMC truck or SUV that best fits your lifestyle. more GMC Elevation: A Great Choice for Everyday Driving The GMC Elevation trim is a popular choice for drivers who want a modern GMC vehicle with bold styling, useful features, and everyday comfort. It offers a balance of capability and value, making it a great option for commuting, errands, family driving, and weekend activities. For many New England drivers, Elevation models provide everything they need without adding features they may not use. If your typical driving includes highways, city streets, and daily trips around town, an Elevation trim may be the right fit. GMC Elevation models are a good match for drivers who want: A stylish and capable GMC vehicle Modern technology and convenience features Comfortable daily driving Strong value GMC AT4: Built for New England Weather and Adventure New England weather can bring plenty of challenges, from snowy roads in the winter to changing conditions throughout the year. GMC AT4 models are designed for drivers who want additional capability and confidence when heading off the beaten path. AT4 trims are popular with drivers who enjoy outdoor activities, towing, camping, and exploring areas beyond paved roads. The rugged design and available capability-focused features make AT4 models a strong choice for drivers who want their GMC to handle more than everyday commuting. GMC AT4 models are ideal for drivers who want: Added confidence in changing weather conditions Outdoor adventure capability Rugged styling Additional capability for towing and recreation GMC Denali: Premium Comfort and Advanced Features For drivers who want a more refined GMC experience, Denali trims deliver premium materials, advanced technology, and upscale design. Denali models combine GMC capability with luxury-inspired features that make daily driving and long trips more comfortable. Whether you are commuting, taking family road trips, or spending hours behind the wheel, Denali provides a more premium experience. GMC Denali models are a great choice for drivers who prioritize: Premium interior features Advanced technology Comfortable highway driving A luxury-focused GMC experience Which GMC Trim Is Best for New England Driving? The best GMC trim depends on what matters most to you. If you are looking for a practical GMC vehicle that is comfortable for everyday driving, Elevation may be the best choice. If you need extra capability for winter weather, outdoor adventures, or more challenging roads, AT4 may be the better option. If you want premium comfort, advanced features, and a more luxurious driving experience, Denali may be the right fit. There is no single GMC trim that is best for every driver. The right choice depends on your daily routine, driving conditions, and the features that matter most to you. Explore GMC Trucks and SUVs at Holloway GMC in Portsmouth, NH At Holloway GMC, drivers can explore GMC models featuring Elevation, AT4, and Denali trims. Whether you are searching for a capable truck, a family-friendly SUV, or a premium GMC vehicle, our team can help you compare options and find the right fit. Visit Holloway GMC in Portsmouth, NH, to explore available GMC models and discover which trim is best for your New England driving needs.

Jul 29, 2026 in 2026 GMC Sierra 1500

Half-Ton GMC Sierra 1500: Why It's the Right-Sized Truck for New England

Are you searching for a capable half-ton truck to conquer New England roads? The 2026 GMC Sierra 1500 delivers uncompromising performance. Holloway GMC in Portsmouth, NH, invites you to experience how this full-size pickup easily manages heavy loads and daily commutes. Reach out to our team today to learn more and schedule a test drive. more What Makes the GMC Sierra 1500 a True Half-Ton Workhorse GMC built the Sierra 1500 for real-world capability. The standard TurboMax engine generates 310 horsepower and 430 pound-feet of torque to provide confident pulling power for everyday tasks and weekend adventures. Drivers needing extra muscle can choose an available 5.3L V8 or a 6.2L V8 paired with a 10-speed automatic transmission. Each engine delivers the responsive power necessary for climbing steep grades or towing heavy loads to the lake. GMC Sierra Towing Capacity That Gets the Job Done The impressive GMC Sierra towing capacity stands out in the half-ton class. A properly equipped Double Cab 2WD standard bed model featuring the available Duramax 3.0L Turbo-Diesel engine and Max Trailering Package tows up to 13,300 pounds. This light-duty truck offers serious capability. If you are pulling a camper through Vermont foliage country or hauling a landscaping trailer across the Seacoast region, the Sierra 1500 brings the necessary power. The available ProGrade Trailering System adds integrated tools to simplify hitching and monitoring your trailer. A Trim for Every Kind of New England Driver The Sierra 1500 lineup ranges from the practical Pro to the premium Denali Ultimate. The AT4 and AT4X trims provide genuine off-road capability with a factory 2" suspension lift, underbody skid plates, and Rancho monotube shocks. The Denali and Denali Ultimate trims introduce a luxury-level interior to the full-size truck segment. Available features include heated and ventilated front seats, real wood trim accents, and a 12-speaker Bose© Premium Series audio system. Every trim delivers a thoughtfully built half-ton truck blending comfort and capability. Technology and Safety Built for Modern Driving Inside the GMC Sierra 1500, over 40" of combined driver-focused digital displays, along with standard Apple CarPlay© and Android Auto© compatibility, keep you connected. The available Super Cruise© hands-free driver assistance technology allows for relaxed highway driving on compatible roads. Up to 14 available camera views help you navigate tight spaces and manage trailer positioning confidently. The GMC Pro Safety suite adds collision-avoidance and driver assistance features to increase awareness on highways or narrow back roads. Visit Holloway GMC to Find Your Sierra 1500 The 2026 GMC Sierra 1500 combines towing strength, advanced technology, and a broad trim range to create a highly well-rounded half-ton truck. Drivers across the New England region trust this pickup to conquer daily tasks. Browse our online inventory at hollowayauto.com to explore the full lineup and compare trims. The Holloway GMC team in Portsmouth, NH, is ready to help you find the perfect configuration and get you behind the wheel.