Used Mercedes-Benz S-Class for sale near Chelsea, MA under $899,990

Went to 3 other dealers before being reccomend to matt Harris and knew instantly it was our last stop. We has been treated like xxxx at the other dealers. 1 lied to us and another told us he would not replace bald tires on a 2 year old luxury vehicle. The second we met Matt we knew we were In great hands. My fiance got the Mercedes she wanted at a fair price and the vehicle recieved everything it needed in the shop before we looked at it. The finance guy treated us like human being and never once felt like I was being had. Oh I forgot to mention that I sold cars for the last 17 years so I recognized great people right away. We will always be loyal to Matt and appreciate everything he did for us

S450 is a great value. Plenty of power. Very comfortable. Quiet and smooth ride. Don't need the big engine. Would definitely buy again. Very dependable.

I have been servicing my cars with Smith for over 35 years. Always attentive to my needs. Simply the best for Sales, Parts and Service.

Amazing vehicle, but only buy new if you want the S63, the Maybach, or your just really rich, if not, then just wait 5 years, and get it for 70 grand! The value is so low because you can just wait for it to depreciate like crazy. But overall, this is an awesome car.

I bought my car at this dealership a number of years ago..And coincidentally, I had a flat tire happen to me right around the corner from them. They replaced the two front tires (worn enough to merit requiring when changing one we needed to change the other). The process was quick. And while they needed to receive the right tires overnight they also cleaned the car quite thoroughly. Everyone was very nice and helpful.

I have driven an S Class Mercedes since 1995. I have not owned anything else. This 2023 S 580 4matic is amazing. With four wheel steering, turns are tighter than you predict. The performance is more than I can handle today and more than adequate. Interior, comfort and exterior are all within my normal Mercedes expectations. After driving this vehicle for 30 years, I am not sure I can accept LESS. Most any vehicle is accepting LESS. I also own a 2020 Range Rover Sport supercharged V8. Just as impressive but not as comfortable. The S Class is what all other vehicle manufacturers are typically chasing to "meet". I have test driven many comparable cars, but none worth buying.

I was very happy with service provided by Rockland Auto in Randolph this guys (Andrew and Dug), made easy for my car selection and loan approval, l'll recommend your next car buying, go to these guys.

I am happy with the vehicle, although it was actually a different color than what was listed. I enjoyed my car shopping experience with Cars.com.

I bought a 2014 Porsche Cayenne last year of them car still runs phenomenal. No complaints on my side super quick super nice no tricks no hidden bull Just make sure you check it before you buy it thoroughly. You should be good. These guys are great thanks again guys for the purchase.

Dollar for dollar this is the best car that money can buy. A 3 year old MB Certified car with around 30,000 miles is the way to go. The price will be about 50% of original MSRP so you save about $50,000. I suggest 4 MATIC and AMG trim package. I 've owned other MB's, high end Jaguars, BMW's, Volvo's, VW's and several American cars, new and used. This is the best.

I bought my 2016 Audi Q5 sight unseen from Medi at Auto Excellence Group. The vehicle was exactly as advertised and in excellent condition. Medi made the process as easy as possible and always followed up. The entire transaction was seamless. I flew to Boston, picked up the car and drive it home the same day. I highly recommend working with the Auto Excellence Group.

Excellent car. I am driving S550 2015 for 6 years with no any mechanical problems, this car is soft driving and luxury finish and look.

11/28/2025 I called Schneider at around 7:52 a.m. He then gave me the towing company’s number to arrange for the car to be towed at 8:39 a.m.
 At 9:29 a.m., Schneider called me to inform me that the tow truck had arrived at the dealership and that they were going to find out what happened with the power steering. He called me later and told me that the car was ready. Furthermore, he went the extra mile to check whether I was covered by my extended warranty. I had a great experience with Schneider. Kami P.

Franklin is great. Thank you for your support help and patience with me. Love the car. At rides great. The paperwork and process was fast

Felt a bit like a fish out of water when buying a GMC Sierra among the Maserati, AMGs and Austen Martins, but Medi treated me like someone buying any one of those beautiful vehicles. My buying experience at Auto Excellent Group was probably the least pressured of all the cars I've purchased over 4 decades, as in no pressure at all. It was an easy going, informative, professional, and very friendly fun experience. Medi made sure I understood all new aspects and details of my new vehicle, right down to tire pressure readings and air pressure adjustments. I'm hoping to win the lottery so I can come back and purchase one of those Exotics. The LED pen is great too! Thanks Medi.

Very comfortable strong fancy and cool ! Perfect for family users! Big trunk comfort inside ! Black on black new tires new wheels just set up!

Stephen Leung at Mercedes-Benz of Boston is the finest sales consultant? I have had the privilege of working with either at this dealership or any dealership in past years. He is professional, extremely knowledgeable, articulate, and a pleasure to deal with it gives you the pluses and minuses and is completely honest. I highly recommend him.

MBZ S-class always 5 ***** vehicle. The most luxurious , comfortable, car I ever drove . I highly recommend it . My old Mercedes S-class has 200,000 miles and not a single problem.

Greg Longo in service went above and beyond for me yesterday. Highly recommend Smith's friendly and knowledgeable staff. I will use Smith Motors for any warrantee work in the future.

I just picked up my S580 Lux-Line in Emerald Green over Sienna Brown, and I am absolutely thrilled with the purchase. I have owned five S-Class models since 2010, including this new one, and I can say this is the best iteration yet from an overall perspective. While I still think the W222 was the best-looking (especially my 2019 S560 with the refreshed look and AMG pack), this new one does not disappoint at all. The Emerald Green is stunning in the sunlight, my favorite color yet. And the interior is on another level from a luxury and tech standpoint. I loved the interiors of all the S-Class models I've owned, but this current one is my favorite. The seats are super supportive, and the vast amount of tech is amazing. The new infotainment screen takes time to learn and get used to, but I feel the "Hey, Mercedes" function makes doing small things like putting in a Navigation request easier than going through the main screen. From a driving perspective, the ride is the best yet, just like gliding on a cloud. I've been lucky to have driven Bentley's and Rolls-Royce's in my lifetime, and this ride is as close as I've seen the S-Class come to being even with those vehicles on this front. And, the V8 is plenty punchy when needed, so it can be a fun vehicle to take on windy roads if you so desire. Overall, a wonderful vehicle and a bargain when you compare it to the other super-luxury vehicles on sale. I'm looking forward to the next few years of owning such an awesome car.

We just bought a C-300 2024 from Smith Moters. Chris Walden was a super salesperson. Every thing he said was true. The car has everything we wanted+. the transaction was seamless. The financial end of the transaction was efficient. We would highly recommend Chris and Smith Moters.

It's an 2023 S-class Mercedes. That pretty much says it all. The fact the it is also a Plug in Hybrid just makes it even better. Plug in at home and you will hardly ever need to buy gas. Plus it is so smooth running on electric that you will love the car even more. Best one I have owned and I have been driving these since 1998.

Great experience and professional staff. They made everything very easy to navigate. I don?t have anything else to say so I am just writing to fill space

We installed solar system in preparation of buying Tesla. We borrow the car from a friend for 3 weeks to try and that was the best decision we made. After driving an Merceds S-class in the past, Tesla is horrible, you feel every bump in the road. Nothing to compare with the smooth drive on Mercedes S-class. It worths every penny and actually the lease price is very similar.

60,000 miles and 9 years now having some issues. Front differential leak, driver active multi contour seat repair, coolant return hose small leak not major. I’ve test driven a number of other luxury flagships and still find the W-221 S Class to be more comfortable and road worthy. Local independent shop provides excellent service at a significant savings from MB dealership. Still love this car and do not regret purchasing even tho repair and maintenance costs are high!

If I could give 10 stars I would!!! I recently had the pleasure of purchasing a used Porsche, and the entire experience has exceeded every expectation I had. From the moment I began inquiring about the car, the dealership was responsive, professional, and incredibly thorough. Despite the car being located in Boston, I was initially hesitant about the logistics of having it delivered all the way to Indiana. But the dealership went above and beyond to make the entire process seamless. Timothy Klingenberger specifically was a DREAM to work with and someone I now call a true friend. He had my best interest in mind from start to finish. I can’t usually say that about any car dealership. Tim provided detailed photos and videos of the car, ensuring I could make an informed decision from a distance. The condition of the Porsche was exactly as described, and when it arrived, it was even better than expected—immaculate, with every feature working flawlessly. It was clear that the car had been meticulously cared for, and the quality of the vehicle far surpassed anything I’ve ever experienced in a used car. Not to mention and without my asking Tim included a second key fob at no additional ask or charge to ensure I had two as it would have come with when purchased new. The delivery process itself was smooth and efficient. The car arrived on time, in pristine condition, and with a full inspection report included. It was evident that the team cared about customer satisfaction and that they were willing to put in the extra effort to ensure I was thrilled with my purchase. What really stood out to me was the attention to detail and customer care Tim gave me from start to finish. I’ve owned several high-end cars, but this was by far the most seamless and satisfying purchase I’ve ever made and I can be picky. If you’re considering buying a car, I would highly recommend this dealership. They truly went the extra mile, and I couldn’t be happier with my decision.

This is hands down the best dealership in Massachusetts. The staff is very friendly, Knowledgable, and attentive to your needs. Every time I go there I feel confident my concerns are taken seriously and promptly taken care off. Nick is an amazing person and goes above and beyond to satisfy his clients. I recommend Kelly INFINITI to all my friends!

This car should be classified as an “exotic”. The S550 Coupe is by far the best vehicle I’ve ever owned. Well, our 2008 S63 AMG was a monster, but very heavy. The ride is harsher than expected over rough roads, but it isn’t close to a deal killer. The interior is perfect, but the controls were clunky at first….until you get used to it.

Seamless integration from Boston to Natick service!! Jonathan has taken the reigns from Michael and he is top notch! Perfect experience!!

I have had this car since 2017 and it have been just pure joy, works like a charm and i had only problems about the radio but thats it!