Used GMC Sierra 2500 trucks for sale near Marietta, GA

Great experience with Hennessy of Southlake. Frank Parker was awesome and represented the dealership well. I flew in from Memphis, was picked up from the airport and everything about the car was as represented online.

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.

I really enjoyed my experience here. I got the car I wanted in a smooth process. It was quite far from my house but the customer service made it was worth the drive!!!!Thanks William for the help!!

I paid over $106,000 for this truck with warranty. Do not care much about miles per gal. at that that price range. Just too much truck for me at my age.

Very pleased with service I received. It honest, helpful and answered my question and concerns. Greg was able to satisfy what I needed and I would recommend purchasing a car from this dealership.

Always very good service. Take very good care of my vehicle

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!

This is the second time that I’ve taken my car to Hennessy and they did another great job! I’d like to shout out Tye, Chelo, Bob, Devon Lee, and Joseph wonderful teamwork!!! 💯💯🙋🏽‍♀️

Love everything about this Duramax Denali except the fuel mileage. 13-14 Mpg tops when not towing. Bought truck cause previous was stolen. Wish I still had my 6.2 High Country!

Bought a nice used mini cooper from Hennessy..seems to be a great little car...my salesman Brian did a great job and the paperwork process was quick and efficient.

Best car buying experience we have ever had. We drove from 6 hours away for this vehicle. Our salsman Ali was great. He sent us videos of the car and detailed pictures I requested before we went up there. I drove the SUV and loved it. Everything was great and we were done with the paperwork within the hour. They payment and interest all matched up. Our buying experience was absolutely great. Everything they told us and promised us was accurate and they even gave us a full tank of gas.

I was very pleased with the service department. Everyone was very helpful and professional. I went there a long time ago and decided to go back. I am glad that I did! I will also recommend them to others. Mr. Golden was very nice and helpful!

I brought my vehicle in because it was making a vibrating noise coming from the passengers side dash??? Courtney assisted me and had a tech drive my car and could not detect the noise. He told me to bring it back if it does it again. Great customer service.

Great place. Great people. great car. Allen and vic did everything amazingly. Worked hard to get me a good deal. Ri go was exceptionally enjoyable,friendly, and accomidaring.

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!

I would purchase from them again in a minute. Very good vibe. They all obviously have a great culture there. It rubs off on the customers. Good value for the money.

I worked with Brett and Daniel. They both were extremely helpful and informative. Although I did not end up purchasing a vehicle here, they were professional and genuinely wanted to help me find what was best for me. Highly recommend this dealership.

This truck is everything I wanted! GMC, 4x4, Lifted, Low milage. It's going to be great for my hunting and 4 wheeling! I love it!

I have now worked with Bryan, Tim Burton, and Drew and they have all been amazing!!!! They were very knowledgeable and helped my find the vehicles that i wanted and made the buying process an easy and smooth process. If you need a "new to you" car go see any of the three of them and they will help you out!!!!

Excellent choices to choose from and very easy to buy and sell your next car … and and the site has great options at the tip of your fingers thank you cars.com for a great experience…

The customer service was great. I have tow complaints: 1. A 3% surcharge when using a credit card which everyone pays with. 2. The waiting room was freezing. I know it?s extremely hot outside but it was very uncomfortable in the waiting area.

My experience was with the collision department. From start to finish, Jacqueline was very kind, loving, and helpful. She made sure I was knowledgeable of everything and that I was set up for success. She help make things so much easier for this process along with the other employees that assisted. Everyone was very helpful. The turnaround time was quick and a shocker! Thanks Terry Cullen!