Mario D'Addario Buick GMC in Shelton is one of the top Buick GMC dealers in Connecticut. The friendly and helpful staff provides a seamless, easy, and stress-free shopping experience. They are accommodating and make the process efficient and hassle-free, taking care of every need. The dealership offers the full lineup of new, certified, and used vehicles, finding exact models for customers. They explain every part of the transaction and deliver vehicles in immaculate condition. The GM-certified service center has professionally trained mechanics. Work is completed in a timely fashion, and the staff is always considerate. While you will pay top dollar for dealership mechanics, they are recommended for major concerns. The service manager is cordial and very accommodating. Nice amenities include a ride service, loaner vehicles, and having your vehicle washed and cleaned. Customers report receiving very fair prices and plan future work with D'Addario.
Great dealership and all around great experience. Everything went smooth.
January 2026
Friendly personal, worked very well with my I felt comfortable and had great buying experience.and I love my new Truck
December 2025
I had a tremendous experience at Mario D’addario Buick. This was my eighth car that I have leased from them and the vehicles and the sales and service has been first class. They always aim to please and make a deal happen!
