Welcome to DeMassi Automotive, where we make your car buying experience as pleasant as possible, and commit that to you with No High Pressure sales! We have selections, selections, and more selections of new and used vehicles to choose from, all centrally located, here in Riverdale, NJ. We are a premier GMC dealer, offering you the best choices in new and used GMC models, particularly the brand new 2008 GMC Envoy.

Inspiration Pulled From Your Life

The first crossover vehicle from the truck specialists at GMC, Acadia draws on the best of everything in your life. Think energy-saving technology. Panoramic views. Quality materials and precision craftsmanship. Awesome entertainment choices. And stylish, spacious, thoughtfully equipped accommodations for up to eight occupants. Not to mention the kind of performance and road manners you expect from a sport sedan. Factor in the assurance of a 5-year/100,000 mile Powertrain Limited Warranty and the conclusion is clear. See our inventory, or contact us for a test drive. It’s time to cross over to Acadia!

Mid-Size Dimensions. Full-Size Heart.

Canyon shares its genes with the mighty Sierra full-size trucks, so you can count on it for genuine GMC capability and technology, including a choice of two powerful Vortec engines. Yet thanks to its accommodating size, Canyon also offers the agility, maneuverability and efficiency that a full-size pickup can’t match. See our inventory, or contact us for a test drive!

DeMassi Pontiac Buick GMC is your home for finding a deal on your next GMC purchase. Whether you're on the hunt for the rugged utility of the Sierra or Canyon trucks, or checking out the spacious GMC Yukon and Envoy SUVs, we're here to help! If you have any questions, or would like to speak with our sales professionals, please give us a call, or send us an email. If you have a particular new or used GMC in mind, but don't see it on our website, just tell us what you want, and we will work to solve your needs with you.