New and used 2026 Mercedes-Benz GLS 450 for sale near Seabrook Beach, NH

First time buying a car from them and I couldn?t be more impressed with how nice the sales people were, I will definitely be purchasing my next car through them,Service was great.

Sales rep was very good and informative. Knowledgeable about the cars I was interested in. Proper follow up and answered all of my questions and helped set up the cars technical items.

I recently bought a Certified Pre-Owned Mercedes-Benz E 450 at Mercedes-Benz of Portsmouth. It was a very nice experience working with Cynthia Acorace, my sales associate. When I picked up the car, they let me know that it was missing the key to the locking lug nuts, but they were ordering a new kit and would let me know when it was ready. Cynthia sent word to me that the kit came in and I could come at my convenience and a tech would change the locking lug nuts and give me the new key. I went in yesterday, and Cynthia took me to the service area where Cory Counsil was supervising the department. When Cynthia explained why we were there, Cory sighed and explained that there was a problem with the service software, and they had allowed all the techs to go home early. Cynthia escorted me to the customer lounge where I had a complimentary cup of fresh brewed coffee, and began to browse through the gift area where they sell Mercedes logo shirts, key chains, and coffee mugs. After a moment, I looked out the window and saw that Cory himself was changing my locking lug nuts. Within moments, Cory had gone the extra mile, and, even though there were no techs working, he took care of things personally and came to find me, telling me it was ready. Cynthia, caught up with me before I left and was concerned to see if I had any questions about the car, now that I had been driving for the first week after buying it. I did have some questions about the automated parking features and how to use the shift paddles. At that point, another sales associate, Ben Lamont, came over and gave me an encyclopedic dissertation on how the parking assist feature worked, and then he showed me how I could easily get in and out of manual mode with the shift paddles. Ben's enthusiasm for Mercedes automobiles was evident, and he made me really feel good about my purchase. From when I was first visiting the dealer, as an off the street shopper, browsing the inventory of cars, through the sales experience, and now as a customer needing help, I have visited this dealership a half dozen times over a 3 to 4 week period. During all those visits, everyone has treated me like a VIP. I was never made to wait, and any concerns I had were taken seriously and addressed immediately. I would recommend this dealer to anyone in the market for an upscale car, and tell you to ask for Cynthia or Ben.

Fantastic customer service! This is my second car in a row that I?ve purchased here and won?t be the last. From the management to the staff, my interactions with Mercedes-Benz of Manchester has been great. Highly recommended!

Peter Derby is worth his weight in gold. I live in France and he was brilliant, he sent me a picture of the parts to confirm the correct ones, arranged delivery to Portsmouth confirmed their arrival before charging me anything. Once paid ,confirmed that they were sent job done! All done in a calm professional maner. Perfect 11/10

Where do I begin??? These people have been beyond helpful, professional and transparent from minute one. Unlike most dealers you can legit tell these are people. Bought my second car from Kara Duffy and her boss Phil this past week. They are very knowledgeable and navigated their stock as well as the banks to get me in quite possibly the perfect rig? I was originally there for a service with Olivia on my 2018 c300? Kara,Phil,Olivia,Jenny,Dawn?.. all great humans. Which is refreshing these days. End rant.

As first-time customers, our experience at Mercedes-Benz of Portsmouth was exceptional right from the first phone call. I told my initial contact (Bethany) what pre-owned vehicles I was interested in, and a time I was planning to visit. When I arrived both vehicles were parked next to the show room waiting. We were greeted by Nick in Sales, given a brief overview of the 2 vehicles and then given the keys to take them for a test drive. For all 3 of our test drive visits the vehicles were waiting, normally running, and always nice and clean. We were never rushed, and there was never any pressure to choose, or make an offer. All questions were answered quickly and thoroughly and all information about the vehicles and vehicle histories was transparent. We were never steered towards any particular choice. Negotiations were quick and straightforward. We picked up the vehicle on a very cold day. It was sitting in the showroom perfectly detailed and all warm. Everything promised was delivered - even the front Weathertek mats! Finalizing the deal was a breeze (thank you Paul) - again very straightforward and transparent. These folks like what they do and it does seem they are allowed to do whatever they can to accommodate their customers. Very nice experience!

In and out with the new vehicle in approximately 2 hours. Excellent all the way around. The salesman was the best I?ve worked with in all my car buying experiences.

Bethany, Tuck & Paul created a great, honest and personal experience at Mercedes-Benz of Portsmouth and my purchase/trade was top-rate in all respects. Your dealership had a very unique used car in stock. I came from out of state and each of you exceeded my expectations on the service, attention, quality and condition of the car as well as your preparation and welcoming treatment of me on site ! Thanks again ! Jack L. -- Virginia

I would like to thank Randy Wheeler for his very professional and helpful assistance while we navigated the purchase of my daughter’s first car for her 16th birthday. Randy was knowledgeable and accommodating throughout the process and was instrumental in coordinating all details for us to allow for the surprise reveal of the car to my daughter. Thank you Randy! I would highly recommend anyone looking to buy a car to work with Randy.