New and used 2026 GMC Sierra 1500 Denali trucks for sale near Suffern, NY

Rob Birchall and the team were great. Was towed in on a Saturday and they were able to diagnose the problem and have me back on the road in 90 minutes.

I went in on a rainy, gray day with no plan. Stood under my umbrella looking at a white Buick and suddenly realized I wanted it. They didn’t rush me—just handed me the keys: “Go drive. Then we’ll talk.” A week later, I’m still smiling.

We bought a car for my grandmother. I just watched. They spoke softly with her, never rushed, explained clearly, and didn’t talk down to her. That respect meant a lot.

Bought a Sierra for business. Needed hauling capacity and durability. They helped me spec it right, and the price was fair—I checked around.

The best ever service knowledgeable very efficient with explanations

Love going to Colandrea I buy and service my vehicle here They are the best

My vehicle was being serviced at service center.Staff was very polite.

Recently I wrote a complaint review regarding an issue I was having with Milea regarding collision body works repairs. The repair issues have been resolved. Milea Service Manager Angelo contacted me, service was performed on my vehicle, dents were repaired. Problem was corrected satisfactory. Milea made good.

Stefanne Rivera was very professional and worked with me to get my car handed over AAA towing even though I was not able to get to dealer. She understood my condition and was very understanding. She and is a valuable asset to the company.

I walked in with something very specific in mind. Even though I didn?t get the car I built online Colandrea was able to offer me the next best possible thing. I?m picky but their associate read my mind and was attentive to what I wanted. I looked at just one car and fell in love with it. Took it for a test drive and made the deal. The longest part of the process was trying to see which of the approval offers best fit me. They fought to stay within my budget. They found me the lowest payment option possible. I was in an out of there in less than 3 hours and returned the next day for my vehicle. Painless!!! This is my NEW dealership! Thanks to Floyd and Dan!

Excellent customer service. They ordered parts, got car fixed same day. Provided seats outdoors for my wait. Excellent job.

great night tonight at Performance Buick GMC! Brian Gauthier was super-friendly, informative and made the process as painless and efficient as I have ever seen, and his tag-team partner in finance James Gavenas made the finishing touches of signing the final paperwork simple and fast, while clearly explaining all options and everything I was signing. and they gave me a great deal- Brian on the vehicle and James on the protection.

Bluetooth/wifi issue....hardware replaced in a timely manner i hope it works....too much technology

George Gregory got us into the right car?.the process was painless. George was friendly and professional. This is our third car with SL and we?ll be back for our fourth.

Excellent service with my GMC Yukon Denali - very attentive and took me in without an appointment.

I recently purchased a used certified GMC Sierra from Sawyer Lyons.The sales and service experience has been outstanding.My salesman,Harold,and George with the paper work were great. Service and parts were also great. This is a fantastic dealership to do business. I highly recommend this dealership.

Wil did a great job in keeping communication with me throughout the process. Great process, and I’m very happy with the truck.

I purchased a vehicle, a GMC Terrain, from Performance yesterday, July 30th,from this dealership. Alex, Art and Brandon were all professional, courteous and extremely helpful. It was definitely one of my best buying a car experience I have had. Thank you all for the help and effort that was put into the purchase. I live in NY and it was still painless!

I recently had the pleasure of trading in and purchasing my 2nd vehicle in 3 years from George Gregory at Sawyer Lyons GMC. Every time I visit this dealership (for service or sales), I feel welcomed and valued. George, who has always been both friendly and professional, always takes the time to say hello and that leaves a lasting impression on customers During the sales process, he has never pressured me into making a decision but instead encouraged me to take my time and ask questions. What really stood out, though, was his commitment to ensuring I got the best deal possible. He worked with the finance team to offer competitive pricing and tailored options that fit my budget. Throughout the negotiation, he was transparent, honest, and made sure I was comfortable with every step. Because of my experience with George, I feel confident in my purchase, not just because of the great car I was driving off with, but because of the exceptional service I received. It's rare to find a car salesman who genuinely prioritizes customer satisfaction over making a sale, but this one certainly did. If you're in the market for a new vehicle, I highly recommend working with him—his professionalism and customer-first attitude made all the difference.