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.

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The 2025 GMC Yukon is a large SUV with seating for up to eight people in its huge, roomy cabin. It’s perfect for everything from short runs to the store or long-distance road trips. As your GMC dealer, we’re going to tell you about some of its exceptional features.

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Do you need to find a top-notch truck for your business or personal use without breaking a tight budget? Read on to learn more leasing benefits to be gained at your local GMC dealership.

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Powerful and capable, the 2025 GMC Acadia is the ultimate three-row SUV for active families. This adventure-ready family hauler offers a flexible interior with smart technology and a slew of comfort niceties to keep you cozy. Discover the standout features of the GMC Acadia.

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At Holloway GMC in Portsmouth, NH, we’re proud to present the groundbreaking 2025 GMC Sierra EV, an electric truck that blends bold performance with refined luxury. Designed to meet the demands of modern drivers who want it all—power, technology, and zero emissions—this all-electric pickup sets a new standard for what a truck should be. Built on GM’s Ultium platform, the GMC Sierra EV Denali Ultimate leads the way with a fully electric powertrain, uncompromising capability, and elite-level comfort.

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If you want to keep your GMC in optimal condition, there are a couple of things you want to do regularly. Some of these you’ll do yourself, and some of them you want to take the vehicle to the GMC dealership for. Here’s how to make sure your GMC is always running right.

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Regularly scheduled maintenance helps to keep your GMC running efficiently and reduces repair costs. As your GMC dealership, we’d like you to know a few signs you may need to visit us for GMC maintenance.

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Shopping for a truck that can go the distance, tow the heaviest of loads, and has all the convenience features and amenities necessary to ensure that all your time on the road feels like a luxury experience? You’ll love the new 2025 GMC Sierra HD. This truck has the safety features, power, and amenities to make life on the road luxurious, accommodating, and more convenient.

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The 2025 GMC Canyon is the perfect blend of refined style and rugged capability, built for drivers who demand both sophistication and strength. With its adventure-ready performance specs, premium interior materials, and onboard technology, this midsize truck offers versatility that easily outshines the competition.

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The 2025 GMC HUMMER EV SUV has a lot to be excited about. Containing advanced tech that won MotorTrend’s 2025 Best Hands-Free Driving Tech and featuring unique crabwalking capability, the all-new HUMMER EV SUV is a marvel of modern engineering that is redefining innovation.

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