Used GMC cars for sale near Porter, OK under $899,990

Chris Ruddick was very helpful in finding me a new vehicle. He was very patient and accommodating. I would highly recommend Chris Ruddick he is a hard worker.

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!

My husband and I recently visited Ferguson Subaru and purchased a 2025 Subaru Touring. We love it, this is probably our 6th Subaru. The outbacks drive so well . Our touring is loaded with so many nice features. We were set up with Zane to explain all of the functions. Our salesman Juvi was great , with several outbacks to choose from. Juvi thanks for helping us make our decision. Juvi thanks again for your help.

Purchased new in October 2024. Total miles driven 9,276. Just completed a 4,734.2 mile trip through 9 states. Just a pleasure to drive. My wife and I were on the road 16 days, with only 8 driving days, longest day was 674 miles. Average driving speed was about 72+ miles per hour. Seat comfort was amazing, no discomfort, great considering having 4 back surgeries. Very solid on the road with little or no driving fatigue. Performance was great. Of the total miles, about 500 were in town driving and 300 miles was in 4x4 in a snow storm coming across Northern Texas in April. Average MPG was 26.4 with my best 500mile drive at 33mpg. The diesel engine is very quiet requiring me to check the tach sometimes to be sure I had pressed the off button. Very quiet on the road as well. This is my first diesel and I would highly recommend it. Plenty of power, great fuel economy, quiet and very responsive when you need that quick acceleration. amazingly nimble for a big SUV. The adaptive cruise works great. My previous GMC was a 2009, 6.2L V8 Yukon XL. I drove that one 140K miles over 14 years with nothing but routine maintenance, a great vehicle as well. Very happy with this 2024

Super friendly and knowledgeable staff. Ryan went out of his way and was so helpful. I will keep recommending my friends. Professional treatment all around. Thanks Patriot!!

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?

man i showed up nervous scared because buying a car is scary! But Ryan Ortiz showed me how easy car buying good be and it felt like a had a vip experience with ryan!!

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

Best buying experience ever and I've bought several cars....buying small town is best

I have the 1500 double cab with standard bed. The reason I have this vehicle is I really like the 6.5 foot bed. The crew cab with same bed is just too long. The things I dislike about this model is that it only comes in the SLE model. For the 2025 that means the external mirrors do NOT have a power fold in and it does not have a seat memory for more that one driver. The power fold in for the mirrors is extremely important to me.

Great and fast service. First time I had been to this location. Very impressed with the service department. You will have my business from now on.

Got same day appointment. Was in and out quickly. Neal King is always very helpful and fixed an issue with my Bluetooth.

This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.

Overall great buying experience. Everything went smoothly from trading in my GMC truck for a new Chevy. Saleman Aaron treated us so well and did everything he said he would do. William went over every feature thoroughly with us. We are very pleased.

2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...

I am not a fan of working with dealers, however this dealership has given me renewed hope! I had a 5-star experience! I was searching the country (I live in Colorado) for the right combination of price, miles, bluebook value, etc and found what I wanted at Don Thornton in Tulsa. I purchased the vehicle sight unseen. Zach Brown, the sales rep, was phenomenal to work with, I highly recommend him! He made the buying experience from out of state easy! He provided everything I needed to make the transaction seamless. He was honest, forthright, responsive, and friendly...They picked me up at the Tulsa airport, brought me to the dealership, and had me on the road in less than one hour. The car was meticulously detailed and ready to go. Everyone I worked with at the dealership were great! Thank you!

My 2022 GMC Sierra 3.0 Duramax pickup truck is a good truck. I work on a farm and I also drive an hour to see my girlfriend. For the farm, it has excellent towing capability and for the hour long drive to go see my girlfriend, depending on the weather for traveling, I can get up to 35 miles to the gallon!

The were responsive and communicated well without pressuring me- As a non-local shopper, I felt like the customer service was really good.

The Yukon checked all of my needs, I have plenty of room for my children and my Great Danes. I enjoy driving the Yukon and how it handles, overall love this vehicle!

Seth Edwards was very helpful and knowledgeable about the 2009 Toyota RAV4 that I purchased. The buying process was smooth and easy. Everyone at the dealership were nice and professional.

Great truck, solid engine, comfortable, smooth, and it handles great for such a large vehicle. Get one and enjoy miles of roadtrips with all you can tow or haul.

Bought a used vehicle with them recently. Process of buying and looking at vehicle was very easy and non pressuring. Brad was knowledgeable about the vehicle. Everyone was friendly at the dealership. Only reason it’s not a 5Star review is because we had to wait for the financing department for quite awhile and it wasn’t busy at the dealership. That being said our experience with every person we encountered was very pleasent.

The team at Mark Allen was great. Zach took wonderful care of me and couldn?t give enough praise to the company. If you?re looking for a Chevy this is the place.

I have enjoyed my vehicle. It is comfortable and drives very well. I like the color also. It is very roomy, takes off fast and the safety features are very beneficial.

Keith Johnson was a great supporter and resource to help us find the car that was just right for our family.

Excellent and reliable, only thing buyers have to do is buy a AFM disabler that you can stick into OBD2 port to avoid lifter failure (longer story, nobody wants a V8 to run in V4)

We were looking for used CNG trucks. We found this dealer when we googled CNG trucks. We were very impressed with the customer service. We always run VIN reports before looking at vehicles. When we asked the dealer about the history of the vehicles they revealed exactly what we had read on the reports. We appreciated the honesty.

I recently had service at Mark Allen Chevrolet (formerly Mark Allen Chevrolet) and was very impressed with their team, especially the service department. They met all my needs and exceeded my expectations. I needed new tires, and my service technician went above and beyond to find the best price and deal. Thank you for the exceptional work you do.

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.

Had an amazing experience with this dealership! Zack was very helpful and friendly! He helped me finance my first car! It was a very welcoming environment and made me feel comfortable! I would definitely recommend!

I've owned this GMC Sierra 1500 All Terrain since it was 8 months old. With the exception of two warranty issues (failing power brake vacuum pump and transmission electrical harness), I have been totally happy with this truck. Up until now, my 1996 Chevrolet K1500 Silverado with it's 5.7L Vortec engine was my favorite truck of all time, this GMC (5.3L LS engine, 8 speed automatice) has earned the top spot now of my all time favorite truck. It is comfortable to drive, and runs as good as the day I bought it over 5+ years ago. I've got 71.5K miles on it. My biggest issue is I wished it had the 6.2L engine for better towing capabilities. Other than that ... love this truck.

Awesome experience buying at Marc Miller Buick-GMC. Thank you. I will send my family and friends to Marc Miller Buick-GMC. Was so easy.

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.

Lane was a great salesman, got what we wanted and was out of there in no time!! There was no pressure we just told him what we wanted and that is what we got!! Awesome

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.

I have owned a construction company for over 23 years and we have bought and leased new vehicles quite frequently. We have bought several from Kevin Grover, but the recent purchase of my 2017 Yukon Denali was the smoothest, quickest, most pleasurable expierence we have ever had while purchasing a vehicle. I will recommend them to anyone and everyone that will listen .

This truck is the definition of mans best friend truly so enjoyable to drive and perfect for the family . My kids and their friends think I’m the coolest dad when I pick them up in this beast