Paul at Mark Allen GMC is outstanding. He went above and beyond to help us find the perfect truck for our needs, taking the time to understand what we were looking for and making the whole process easy and stress‑free. His professionalism, honesty, and genuine care made a huge difference. We're extremely happy with our experience and our new truck. If you're shopping for a vehicle at Mark Allen GMC, definitely ask for Paul -- you won't regret it. read more

Mark Allen Buick GMC - Car Buyers Near Me - Collinsville, Oklahoma

We went in to look at a truck they had online. We were told it wasn't ready as it was being detailed. A little confused on why you would post something before it was ready to be seen but left our number to be called when it was ready. I thought it would be a couple of hours maybe the next day but we never got a call back. This isn't the first time that I've been told they would get back to me and no one calls. read more

I just want to start with, these are an amazing group of people. From Joe in sales office, to Zach in sales to Joe in parts Steve in service as well as the entire service department. Even detail man.We purchased a 2026 GMC Sierra a couple days ago. The entire transaction from start to finish took about 2 hours. And part of the reason for the length of time was on our part. I also had a bed cover installed everyone there took care of my truck. Even the cleaning lady was so nice. She even seems to be so happy and appreciative that I was there. You have to go see Joe in the sales office, Zach in Sales, Joe in parts and Steve in service. Just a perfect experience. We will be back. read more

I can't say enough about Mike in the service department! He hung in with me on a part that was on national backorder for 6 months. When it finally arrived he got it installed and my car returned the same day. He also allowed me to park my backup vehicle in their lot during the entire time to allow me to keep from having someone from their shop come to my house and get me and pick me up during the 6 months. He also kept great communication throughout! I appreciate all his assistance and outstanding customer service! read more

I would give this experience zero stars if I could. I purchased a used vehicle for my 16-year-old daughter from Mark Allen in Collinsville, and the salesperson we worked with was Jeff. The first visit went fine, but when my daughters returned to look at the car again, his attitude completely changed. He was condescending and made my oldest daughter feel uncomfortable for being cautious about the purchase. Within two weeks of purchasing the vehicle, the service light came on. We took it to O'Reilly Auto Parts, and they diagnosed a camshaft position sensor issue. We replaced the sensor, and the car ran fine for a few days before the same problem returned. Now the vehicle won't go over 15 mph and can barely accelerate. Even more concerning, the car went into limp mode while my 16-year-old was driving, and she was nearly hit because it suddenly lost power. This is a serious safety issue. I contacted Jeff to see if the dealership would help given how soon the issue occurred after purchase. He said we could bring it in, but any repairs would be entirely at our expense. This has been an extremely disappointing experience--not just poor customer service, but a potentially dangerous vehicle sold to us. I would strongly caution others before purchasing from here. Also, tried calling the dealership back to talk to the "Experience Manager" or the "Dealership Coordinator" and neither of them have returned my calls. read more

Just got a brand new 2025 Buick in envista. Rachel and Jackson were great I'm really took their time with me. I didn't plan on buying a car as I accompanied a friend, but we both got cars that day. Customer service areas were clean. Bathroom was clean quick and speedy service in the finance manager. I don't remember his name, but he was great too. Definitely recommend. read more

Mark Allen Buick GMC - 2025 Buick Envista Sport Touring - Car Buyers Near Me - Collinsville, Oklahoma

The GMC dealer in Broken Arrow couldn't even look at my truck until about two weeks from the Monday that I called. I called Mark Allen GMC. They got me in that Friday just before Memorial Day and analyzed the problem. Parts had to be ordered. They had them the Tuesday after the holiday weekend. They worked me in on Wednesday. I appreciate the fast friendly service. Ask for Doug in the service department . Even though it is a bit of a drive I will be bringing my truck here for routine service in the future. From my iPhone read more

Great experience!! Jerry in sales went above and beyond for us! And Darrin in finance was unbelievable and got us a fantastic deal!! Prince was also very helpful The whole team were so great!!! read more

A big shout out to Lyndsey Blakey and helping us find our family SUV! He is definitely the #1 salesman in our family! Very knowledgeable, quick responses and helps in whatever way to get you into the vehicle you love! Thank you again Lyndsey! read more

I have waited a few months before this review. I purchased a GMC Acadia in Nov. 2024. Was told ahead of time that they add the door guard/tinted windows to all vehicles ($895); no choice. An outside company, Integrity Customs, Inc., applies this. The next day, after getting home (in the daylight) I noticed the plastic edging on my doors & handles were a mess. I called Heath (M Allen), he did tell me to go get it fixed (I am in another State). I took to a reputable Company in my area; which fixed it properly & told me there were cuts in my doors where Integrity applied the door edge. (they cut the edging while on doors) Now, I am really upset: New vehicle $45K(w taxes) - cuts on my doors due to something I did not request to be added; M. Allen makes profit on an added feature that messes up my new car. Again, phone call, Heath; told to take to get it fixed. Took to body shop in my area; was told cuts were deep, but would make my car look worse if they had to do all doors & rear panel. Sickening! Called Heath, was told if it was him, it wouldn't be that big of deal. Well, to me; it is! New Car $45K with cut marks in my doors. In conversation w/Heath - I tried to think of a way that Integrity & M Allen should be held responsible since I did not want my new car screwed up/w new paint job. In general, I was throwing out a number "$500 or something" to compensate for the poor job and me having to live with it. No call back from Heath, just a quick check in the mail for $500 from Integrity. I did not agree to and have not cashed. At this time; I will be further in touch with Integrity. BUT, if you are looking to purchase from Mark Allen, or already have, please BEWARE and look close at your vehicle where the door guards & cupholders have been added. I would not purchase from Mark Allen and regret that I traveled out of state thinking they were a reputable company. We have purchased many new vehicles over the years and have never had this kind of terrible experience! read more

We experienced superior customer satisfaction when purchasing our new GMC Yukon. Lyndsey assisted us via phone, text and email to agree on the deal, which included a trade-in, then we drove from Houston to Collinsville to make our purchase. Driving into the parking lot, we were warmly greeted by several friendly and helpful staff members. We felt very comfortable and value their honesty as we experienced no surprises. Heath was a great help with setting up the app and other needed online services. Since it was a very stormy day, the new vehicle was parked inside a clean/dry area for our final inspection then our trade-in was brought in beside the Yukon so we could easily transfer our belongings over. Dan was very personable and handled the finance portion quickly and honestly with no added hype. Such a great group of guys and it was easy to detect they all enjoy their work and each other. We will definitely make the drive from Houston to Collinsville again to purchase a vehicle from Mark Allen Buick GMC. Our experience was exceptional in all areas. Thank you! read more

Very awesome experience here. These people wrote a new chapter on how to deal with customers. So polite and courteous, no pressure at all. My salesman Ron even told us to go home and think on it, he said buying a vehicle is a big decision, I want you to buy the one you need. I'll hold the vehicle for you and if you show up tomorrow to buy it, it will be here for you. So we left and talked about it, came back the next morning and purchased it. Going thru the buying process was seamless, everything went smoothly. We probably spent a total of 3 hours for the whole experience, that was looking at cars, test driving, a little negotiating, and buying. It's great that There's now a car dealership in the Owasso/Collinsville area that really cares and listens to the customers. The other ones suck, that's right JG dodge, ram and other crap you sell. The word is out and now you are going to loose business because of the shit show you run in Owasso. Thank you Mark Allen and all of the great people you have running your business. read more