New and used 2025 GMC Sierra 1500 trucks for sale near Derby, CO

I had the pleasure of working with Brittany, who was very informative and a pleasure to work with.

I have bought two promasters from these guys in a bout six months time. As a business owner I don't have much free time was able to get in touch with Jeff Hale and put the ball in his court. It was the easiest purchase iv made I spent maybe 1 hour each buy at the dealership just to shake hands sign pick up and out the door ! No hassle got what I wanted for the price I wanted even a little cheeper. Will keep my business here!

I have been a service customer for over 20 yrs, on my various vehicles. I recently worked with Miranda in the service dept. and I must say she was great. She demonstrated excellent customer service skills, with a great attention to detail. For such a young person I was more than pleased with the way she dealt with me, providing excellence in service. What a great representative of your dealership!

Very professional listened to my concerns made trading easy trained me on the features I am very pleased with the purchase and the individuals that helped me

Great car buying experience. Friendly, knowledgeable, no pressure salesman Kyle Berry. One minor problem was handled quickly and professionally with no hassle. Go see Kyle.

Friendly and knowledgeable staff. Thank you for your help and we love our new car!

Looked for a low mileage Acura TLX or TSX for six months and I found this car near me. It was nicely detailed and looked well cared for from the posting on Cars dot com. The sales rep called me very soon after my initial query. The entire buying process took an effortless one hour and I was on my way with the beauty,

We had a very nice experience purchasing a XT4 from John Elway Cadillac. Our Sales Person, Delmar Fralick was very nice and very knowledgeable. He made us feel very comfortable throughout the process. David Kaizer, the Finance Manager was also very pleasant. Both of them made our purchase very easy and we felt no pressure. We had done a lot of research beforehand and that helped us as well. We have purchased many vehicles over the years and this is the best experience we have encountered. We will definitely be back when we are ready to purchase another vehicle. Thank you Delmar and David! You guys are awesome.

Joey was great service manager...car service correct and prompt...very positive experience. Car was returned clean and with a full service report. Highly recommend dealership.

My wife and I purchased a used 2015 Buick Enclave from Mike Maroone Cadillac GMC. We live in western Nebraska and saw the vehicle for sale on cars.com. I visited the Mike Maroone Cadillac GMC website directly and found the vehicle on there. There was a wide array of documents related to the vehicle right on the website. I was impressed with the transparency of the information that was offered. I was even able to access the vehicle’s Carfax right on the website. The vehicle was a one owner with a crystal-clear service record that had every single oil change, preventative service, and recall completed on schedule. Negotiations began though a series of phone calls and text messages. Our salesperson, Braden, was very nice and professional, but most of my contact during negotiations was with two of the sales managers, Andrew and Anthony. Both were equally transparent, straight-forward, and most of all very fair to negotiate with. Using only a total loss settlement we received from an accident, we had a limited budget to work with and they really knocked it out of the park! We drove out from Nebraska on Memorial Day weekend to test drive the Enclave and put the finishing touches on the negotiations. Everything went off without a hitch! Even though we paid for the vehicle in full that day, we still had to go through the finance office for all the sale documentation. Eric was fast and friendly, and we were on the road back to Nebraska by mid-day. Unfortunately, on the way home, we discovered an issue with the Enclave’s transmission. We were crushed and started panicking as to what to do. Used cars are sold as is, and we knew that going into the deal. We knew we couldn’t return the Enclave, so we drove it the rest of the way home. Brayden called us on Sunday to ask how we were liking the Enclave. I did not answer and did not return her call until Tuesday morning since it was Memorial Day weekend. I left a message for her explaining the transmission issue and that we were aware that it was sold as is. I then took the Enclave to a transmission shop and had it diagnosed. The Enclave needed a new transmission to the tune of $5,800, plus tax. I received a phone call from the sales manager Anthony and within 5 minutes he offered to pay for HALF of cost to replace the transmission! I sent him a copy of the invoice from the transmission shop, and I had a check in my hand by the end of the week! When I thanked Anthony, he told me, “Doing the right thing isn’t always easy, but we are always going to do the right thing”. Mike Maroone Cadillac GMC earned a life-long customer here and I will make that drive to buy from them again anytime! Thank you, Braden, Andrew, Eric and most of all, Anthony! You are all a class act!

Worked with Cosmin on a used Porsche Cayenne. Very friendly and professional salesman with a no-xx attitude. Didn't leave me waiting around excessively during price negotiation, and was willing to work with me to find a deal I was happy with. Finance was super quick and low-pressure, I didn't feel like I was being lambasted with upsells that I made clear I didn't want. Good stuff, Austin. Very respectful and professional staff, and I would definitely recommend doing business with these folks. Keep up the good work.

Austen is knowledgeable, efficient and friendly. I love that the tech sends you a video of your vehicle and what he?s working on. And the best of all is that they got me out in a timely manner

Yamile was knowledgeable, professional, empathetic and a terrific asset for you. She is a keeper!!! I could not be more pleased with the service she provided.

I have purchased a number of vehicles from this location under different ownership. The one good constant has been the service department and the service tech Dave Singh. Ask for Dave he will not let you down.

Jenny Rose is the best service advisor that we?ve ever had. She made sure that all repairs were completed thoroughly and quickly. We will continue to get our Tahoe serviced here.

Sales and finance teams were extremely flexible and attentive, listening to my concerns and working to find solutions. They supported 2 different test drives when I had a concern about a specific driving condition, being extremely flexible working around my schedule. Cam, Austin, and Alec worked together to provide answers to all of my questions regarding financing and extended warranties. When a last minute issue arose on a Friday afternoon, their maintenance department obtained the part and swapped it out on a Saturday morning to allow me to pickup the car that afternoon. Communication was excellent, receiving 2 status updates that morning.

Went above and beyond all expectations! The team is very responsive and helpful, all of our questions were answered in a very professional manner. I would definitely recommend this place to anyone who asks.

I?ve purchased several cars from AutoNation over the years and specifically with Ryan and Jason. Always unparalleled customer service and they go out of their way to ensure their customers are satisfied in their decision. Can?t say enough about how fantastic they are throughout the whole process.

?????????? I had a great car-buying experience at Mike Maroone GMC in Boulder. From start to finish, the team went above and beyond. A special thank you to Austin, the new car sales manager, Brayden, Cosmin, and Alec. Their customer service was outstanding, and what really stood out was their follow-through. Anytime I had multiple questions, they took the time to explain things in a way that I could clearly understand?never rushed, never brushed off. This wasn?t just about buying a vehicle?it was about feeling taken care of. The level of professionalism, patience, and genuine care made this the smoothest and most enjoyable car-buying experience I?ve ever had. I highly recommend Austin, Brayden, Alec and Cosmin, and the entire team at Mike Maroone GMC Boulder!