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CERTIFIED ADVANTAGE
The story of your used vehicle search starts right here. And while there are a lot of options out there, buying a Certified Pre-Owned vehicle from Mario D'Addario Buick GMC means having confidence in your purchase. As you begin your next chapter with a Certified vehicle, you'll get great benefits that you don't get with an ordinary used vehicle. That's because we offer one of the most comprehensive used-vehicle benefits packages in the industry.
Search Certified Vehicles2025
Buick Enclave
Timeless yet undeniably modern
Sculpted, modern contours give the 2025 Enclave mid-size SUV an elegant profile and commanding presence. Choose from three distinctive trim levels, each showcasing a well-defined character and an impressive variety of options.
View InventoryWhy Should I Choose Your Buick GMC Service Center?
Trust us for all of your car maintenance and repairs. We're here to get you back on the road quickly and efficiently, and at competitive prices.
Whether you need an oil change, tune-up, a brake job, transmission work, or regularly scheduled maintenance, let our experienced mechanics do it for you.
Schedule ServiceMario D'Addario Buick GMC Is Everyone's Favorite Buick GMC Dealer
in Greater New Haven & Fairfield County
Mario D'Addario Buick GMC is a highly rated dealership, and we build trust by focusing on your needs. We believe in integrity in everything we do, and we do things right the first time.
We have many satisfied customers from all over southern Connecticut, and people come to us from all over the region to do business with us.
Our salespeople are knowledgeable, helpful and informative, so you'll find the right car or truck…at the right price. We have a great selection of new and used Buicks and GMCs, and we offer fair prices.
| Monday | 9:00AM - 7:00PM |
| Tuesday | 9:00AM - 7:00PM |
| Wednesday | 9:00AM - 7:00PM |
| Thursday | 9:00AM - 7:00PM |
| Friday | 9:00AM - 6:00PM |
| Saturday | 9:00AM - 5:00PM |
| Sunday | 11:00AM - 4:00PM |
| Monday | 7:45AM - 5:45PM |
| Tuesday | 7:45AM - 5:45PM |
| Wednesday | 7:45AM - 5:45PM |
| Thursday | 7:45AM - 7:00PM |
| Friday | 7:45AM - 5:45PM |
| Saturday | 8:00AM - 4:00PM |
| Sunday | Closed |
| Monday | 8:00AM - 5:30PM |
| Tuesday | 8:00AM - 5:30PM |
| Wednesday | 8:00AM - 5:30PM |
| Thursday | 8:00AM - 7:00PM |
| Friday | 8:00AM - 5:30PM |
| Saturday | 8:00AM - 4:00PM |
| Sunday | Closed |
Your Trusted Buick and GMC Dealership in Shelton, CT
Welcome to Mario D'Addario Buick GMC, your premier Buick GMC dealership near you in Shelton, CT. Our team is committed to offering an exceptional car-buying experience for all our customers. Whether you're looking for a used car for sale in CT, a new GMC, or certified Buick service, we’re here to help. Established in 1968, we are a family-owned business spanning three generations, and we proudly live by our motto: "The Difference is D'Addario."
Why Buy a Buick or GMC in Shelton?
Choosing a local dealership like Mario D'Addario Buick GMC saves you time and effort, with ongoing service and support after your purchase. Our dealership, located at 329 Bridgeport Avenue, Shelton, CT, is easy to reach from all surrounding areas, including Bridgeport, New Haven, and Waterbury.
Serving Shelton, CT and the Surrounding Communities
At Mario D'Addario Buick GMC, we’re proud to be part of the Shelton community and to serve customers in Derby, West Haven, and beyond. We’re committed to supporting local causes and events, ensuring we contribute to the growth and well-being of our neighborhood.
The Best Place to Find Used Cars in Shelton, CT
If you're searching for used cars in Shelton, CT, look no further than Mario D'Addario Buick GMC. Our extensive inventory includes a wide selection of high-quality, pre-owned vehicles, each undergoing a thorough inspection to ensure safety and reliability. We also offer competitive used car financing to help you drive away with the perfect vehicle.
Your Buick and GMC Service Experts
Keeping your Buick or GMC in top condition is easy with our certified service center. From routine maintenance like oil changes and tire rotations to more complex repairs, our factory-trained technicians have you covered. When it comes to genuine parts and accessories, we offer the best options to keep your vehicle running smoothly for years to come.
Visit Mario D'Addario Buick GMC Today!
Looking for the best Buick GMC dealer near me? Visit Mario D'Addario Buick GMC in Shelton, CT for all your vehicle sales, service, and parts needs. Our friendly team is here to answer any questions and ensure you have an exceptional experience every time you visit.
Here Are Some of the Vehicles We Think You'll Love:
- Buick Enclave: A versatile compact SUV offering the perfect combination of performance, technology, and comfort for your daily drive.
- Buick Encore GX: A compact crossover designed for efficiency and ease, ideal for both city driving and weekend adventures.
- GMC Terrain: A flexible and stylish SUV that balances utility and comfort — great for families and everyday driving.
- GMC Acadia: A family-friendly SUV with three rows of seating, offering space, comfort, and advanced safety features.
- GMC Yukon: The full-size SUV built for maximum comfort, power and capability — perfect when you need serious space and performance.
- GMC Sierra 1500: A powerful and rugged full-size pickup, perfect for work and play, with impressive towing and hauling capabilities.