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Each GMC Certified Pre-Owned vehicle is thoroughly inspected and reconditioned and includes factory-backed limited warranties and roadside assistance.

Our Reviews
First I would like to thank everyone that helped me in the process of purchasing my vehicle at GMC. I had no past credit and they help me get my vehicle for an low interest. Zachary McClellan you’re the best! He called me two weeks after my purchase to make sure everything was running well and if their was anything I needed. You helped me and my family big time. I’ve recommended them to people I know and will definitely be back if ever needing to purchase a vehicle.
These people that work here are so nice. They try very hard to help you. If they don't have what you want they will try their best to find it for you. Just to make you happy.
Rachel at the Beck and Masten in Robstown Texas...I had my vehicle serviced..she was my service advisor...by far she is the BEST.. they do not get any better than Rachel..
I began looking for a newer vehicle over six months ago. I live north of San Antonio, Texas. I explored over 10 large and small dealerships in the San Antonio area and I was frustrated by their sales tactics and misleading add ons after advertising at reasonable price. I found a truck at Beck and Masten I really liked, a 2024 GMC Sierra 4x4 SLT with 30k miles. I contacted Monica Mercado by phone on a June 27 and she did a tremendous job describing and and communicating with me on it. I was just a little hesitant since I havent had a truck payment in over 15 years. On June 30, 2025 around 7 pm I called Monica who was on her day off, and she responded. I told her I wanted to buy it and she said she was going to make sure it was available. The next day she called me early morning and assured me the truck was very clean and available. For Monica to answer my call on her day off was going above and beyond my expectations. She sent me pictures and video. July 3 I rented a car and drove to Robstown which is 163 Miles from my house. I met her and the truck was everything she described and then some. It was an awesome truck. She had all the paperwork ready for signing. Then I met with Ashley in Finance who was very helpful. I was in and out in less than an hour. Monica followed me to the airport to drop off my rental and I was on my way back to the hill country with a big smile on my face and a kick ass new to me beautiful GMC Sierra SLT 4x4. Monica and Ashley were a pleasure to do business and I highly recommend this dealership. Ill close this review by saying I am not the easiest person to deal with, but Monica was awesome and made the process an enjoyable one. Monica and Ashley are a tremendous asset to your dealership. Thank You Again Mark Clancy Bulverde Texas
This was my first experience with this dealership, and the service exceeded expectations. Rachel was exceptionally communicative throughout the process and provided outstanding support. I drove 30 minutes specifically to have my vehicle serviced here, and I would gladly do so again. Thank you, Rachel!
Rachel in the service department was extremely helpful and courteous communicating with us regularly. They found the problem with the SUV that the other dealer couldn't and fixed it hopefully no more problems thank y'all
Very courteous, friendly..in and out in a timely manner..no problem referring my friends to come here..
Easy to work with. Had my situation in their and my interests.very respectful. Thank you
Professional, knowledgeable and concerned for customer service. Highly recommend their Service Department.
They were courteous and friendly. I was provided with detail information about my car. I was also provided with information as to what should be done in the future.
Welcome to Group 1 GMC Coastal Bend
Thank you for making your way to Group 1 GMC Coastal Bend, your certified GMC dealer serving drivers throughout Robstown and the surrounding areas. At our dealership, you’ll find a solid selection of new GMC models for sale, as well as a carefully inspected lineup of pre-owned vehicles. We also have a well-connected finance center run by a qualified team of finance experts, who can help you get the right loan or lease in a quick, easy, and transparent manner.
Our commitment to our customers continues well beyond the date of purchase. We also have a professional team of GMC technicians on hand with the skills and equipment to handle all manner of maintenance and repairs, as well as a full stock of authentic parts. Make your way to Group 1 GMC Coastal Bend in Robstown today for quality vehicles, a friendly team, and professional service at every step of the way. And if you have any questions for us, you can always get in touch at (361) 387-2506.