Used GMC cars for sale near Onset, MA under $899,990

Best car buying experience I’ve had so far! Derek was awesome!!! I would definitely buy from Mastria again!

I saw this car driving by the dealership and automatically was drawn to it because of its color. GMC calls it brown but one print out called it crystal metallic purple. It changes colors depending on the weather. I love the handling, the dash and all the bells and whistles! My grandchildren love how much room that it has!

Manny was the consummate professional and took care of everything from A-Z. I am completely satisfied.

I love it the look the interior mine is a red one and it looks so good and it’s my baby and it runs so good and the technology is off the chain

Finally an no pressure car buying experience! I like to get a new or new to me used vehicle but like many customers, kind of dread the whole experience of “dealing with the sales people”. I don’t like the whole drawing boxes, asking what I want my payment to be and let me go talk to my sales manager… AGAIN! I dealt with Josh and to be fair I knew what I was going in for so unless you have a day to kill on a car lot, do your homework prior to going to the dealership. When I got to McGee Josh greeted us and had the cars I wanted to look at ready to go for a test drive. There was a good demeanor with Josh and it was easy to work with him. Deal was made that day (Saturday) and I picked my vehicle up Monday with tags, title, registration and inspection sticker by 10am! By far this has been the best car buying experience I’ve had for a car that I really love. Thanks Josh and Joel at McGee!!!

2024 GMC sierra 1500 duramax 3.0 is great truck. Great ride and great MPG. 100% recommend to any prospective buyer. Love the truck and how it perform.

Usually not a type of person to write reviews but after dealing with colonial Ford and Brendan smith and Dell Roderick i have to! The whole team went out of there way to get me approved on my dream truck to be able to provide for my family and i can’t Thank Brendan and Dell enough see these guys.

Stong engine and smooth! Highly recommend for familys or someone who likes a smooth truck. Purchased new and have had zero issues since then. Love it!

Had an amazing experience with Nate! He was kind, knowledgeable and was able to assist us from start to finish!

Looked at more expensive truck with less options, bought the GMC SIERRA AT4 Turbo Diesel 6. I now only put fuel im once a month. And long distance trips are easier due to better fuel economy. One of my best investments ever.

Michael Gentilucci was very kind, courteous, and professional. I inquired about remote start on my 2019 GMC Canyon and he was very knowledgeable on the process of installing it on my truck. He ordered the part and I can't wait to have it installed. I originally just went there for an oil change, but service was so great I decided to let them install the remote start as well, rather than my local GMC dealership. The kind and courteous service is worth the extra few miles to drive.

great styling and interior. nice features and acceptable performance. overall my Denali is a superior product to similar vehicles. I would recommend this GMC Acadia.

One of a kind customer service!! Great communication and very helpful! Liam Thank you for making my day!

I love my Acadia Denali. It is fully loaded with anything you can think of.I love the V6 engine and how smooth it drives and rides

Forest did a great job explaining everything and keeping me up to date on the work. The work was also done in a timely fashion.

Got the duramax diesel and getting 24 city and 32 highway is very good. Truck drives nice and is very comfortable. My 2 issues with this truck is the backup camera at night is useless (very dark) and interior lighting is not very good. You would have thought a 78k truck would have footwell lights, but it doesn’t.

Great place for service and hassle-free purchase, Service Dept is great my truck is always done on time.

Overall I am very happy with my new Truck. GMC however needs to address their software glitch where the display screen intermittently stops working or the audio cuts in and out. I keep hearing a software update is being worked on but that was a while ago?

This was by far the best car buying experience I have ever had, in and out in less than an hour.We walked away happy and felt very much taken care of. We would come back again and again!

Am in disbelief every week at the Gas Pumps. Thou a big truck, mileage per gallons are 18 +. Last week it was 22.8. This week 19.78.

I had the pleasure of meating a sales rep named manny and he delivered just what i needed i was satisfied thanx msnny 5 stars!

Any reviews on this vehicle is not correct. We are first owners and it’s been an excellent truck. We hate to see it go !

Go see Mike at MARTYS best place on the south shore to buy a truck...

I've owned my truck for nine years now it is never once let me down. I'm about to put my first set a tires on it and brakes other than that I don't plan on getting rid of it it's never let me down and after reading all the other reviews it makes me realize they don't make them like they used to as they used too!

I could tell from walking in this is a place where people are treated right. As a single older woman who had not bought a vehicle on my own since the mid-1970s(!), I was nervous approaching this whole process, especially in the COVID-19 era, when I didn't feel I could impose upon a friend to go with me. Silko Honda--and Heath, the salesman I dealt with, made the buying and financing process painless, and I could not be happier, either with the experience or with my luxurious new Ridgeline. Heath was very pleasant, even after the deal was sealed, responding immediately to numerous texts. I would have no hesitation recommending this place to friends.

I needed a new pickup and while I wanted a Ford F150 I could not find one set up how I wanted. When I did the Ford dealers didn't want to give what I felt my trade in was worth. I got what I wanted and got a great deal on a 2024 GMC Sierra 1500 Elevation. It is even set up better than the F150's I was looking for and at a better price. I'm very happy with my purchase.

Excellent as always; second vehicle acquired from Marty's GMC

This truck is the truck that all others should look up to. It rides great, will tow a house, runs smooth, and gets great fuel economy. The Allison transmission is so smooth. The AT4 looks great too.

Kyle Kelle provided me with exceptional customer service. he made the car buying experience stress-free and made it seem so simple. He took care of everything. I’m so grateful and I love my purchase.

I love my 2018 GMC Acadia just wished windows were tinted and had a tv for kids and grandkids overall I have had this truck for 2 years and I Love it and use it for family drives cuz of how much room it has I have even used it for work meetings and we all travel to the meeting together .

Anthony Miranda and Eric are the best! They were very helpful with the Jeep and I am very happy with my new car purchase, thank you!

I bought my 2020 with 36k miles a couple of years ago and I now have 60k miles of trouble free very enjoyable driving. It was expensive, but worth every penny. The ride is so quiet and comfortable my wife and I prefer traveling in it instead of our 2018 Acura MDX which we also love. The 5.3 V8 has plenty of power and towing ability. The multi-function tail gate is genius, I hope to never be without one again. We so enjoy all the bells and whistles, especially the wireless phone charger. So glad I bought this truck!

as usual the service is amazing. I have used the same dealership for years

One very awesome vehicle. Checks all the boxes you need in a truck and exceeds expectations on quality, performance, and looks great ,too. Love my nre truck.

Incredible customer focus. Had an issue with my 2020 Silverado. Had to drive from Wareham to Marlborough so I pulled in to Robertson GMC, never once believing that I would be able to continue. Within an hour they had it diagnosed and the part shipped for next day delivery. I was thrilled but was totally surprised when they offered me a rental to continue with my trip. They called the next morning and the truck was repaired by 10:00. I returned to pick it up and they had even washed and vacuumed it. Incredible customer support, especially the Service Advisor, Jim Morrill. What a pleasure it was dealing with Robertson GMC!

I've owned every other American truck and this is my first GMC. I bought the 2500 HD Texas Edition. I absolutely love this truck. It's everything I could have hoped for and more. It is able to pull my 30' travel trailer with no problems. So now when we go out with our trailer I'll have no worries. The look and feel of the truck is outstanding. The 6.6L gas engine actually gets great gas mileage. It gets about the same as my Ford f150 ecoboost. Probably better on the highway. Looking at about 13 miles in the city and 15 plus on the highway. Definitely got a better truck for the price compared to any other american models with the same characteristic and options.

Courteous service and a capable repair staff. Even an around town vehicle if you are waiting.

I've only had this truck for a month and a half and have had no issues. The interior is just plain awesome. I really like the multi function tailgate on this truck, it's very handy loading stuff into the box and the step really helps when you want to climb into the bed. I really like the ride height on the new trucks better than the 2015 Denali I traded in to get this one.

Every department at Robertsons has knowledgeable employees that are extremely friendly and helpful. I have purchased multiple cars there and the process has been all around easy because of the employees. And the service department always gives updates if needed and has your vehicle done at the promised times

I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!