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Used
GMC cars
for sale
near
Thornton, CO
under $1,800,000
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

Used
2021 GMC Yukon Denali
Vehicle information
Features
Reviews
Outstanding!
Fine dealership with excellent and professional sales and auxilary staff. My overall joy of pruchase was diminished by a timely bank wire transfer but was in no way shape or form a result of incompetance at MB of Littleton.
I have enjoyed my vehicle.
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.






Used
2024 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Done on time.
Done on time. Warranty recall on the engine. Checked out, now with new 40/wt oil. Nice service bay, responsive staff. Showroom full of new cars.
I love it the look the interior mine is a red one and it
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

Used
2017 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Our experience with Jason Montgomery was absolutely
Our experience with Jason Montgomery was absolutely fantastic! From the very beginning of our car search, Jason went above and beyond to help us find the perfect vehicle. He was incredibly patient, knowledgeable, and genuinely cared about making sure we found exactly what we wanted. When it came time to go over our new truck, Jason took the time to explain every feature in detail ? making sure we understood how everything worked and felt completely comfortable before we drove off the lot. His professionalism, friendliness, and thoroughness truly made the whole process easy and enjoyable. We couldn?t be happier with our new truck or the amazing service we received from Jason. If you?re looking for someone who truly goes the extra mile, Jason Montgomery is the person to see!
Good afternoon everyone, yes, I’m a lady and I’m an owner
Good afternoon everyone, yes, I’m a lady and I’m an owner of a 2017 GMC Sierra 1500 Denali, it has a V8 motor fully loaded sunroof & also it has heated seats & steering wheel for the cold winter months & in those hot summer months you have A/C seats nothing better than that am I correct? It’s been times like that wouldnt trade for the world!! So for all you ladies who think BIG TRUCKS are just for men, go out there & buy one have them put on some electronic slide in/out rails & go out & show the shows the boss!! lol 😄 I’m out looking for a new one now either a 2500/3500 pearl white






Used
2017 GMC Yukon XL SLT
Vehicle information
Features
Reviews
Was looking for a 2025 GMC Acadia Denali.
Was looking for a 2025 GMC Acadia Denali. Went to AutoNation and was met by Caden Noar. He was fantastic! Showed us the Acadia he had on the lot, gave us a test ride and answered all our questions. Not once, did he pressure us to buy but was more interested in answering our questions. After the test drive, we noticed a Buick Enclave Avenir in the lot as we were exiting the dealership. Liked the car looks and went back into the dealership to see if Caden was available to show us the car. We knew nothing about the car. He came out, gave us a test drive, answered our questions and then asked us if we would like to see another feature of the car, so out we went for another drive. Again, no pressure to buy and we parted. Over the weekend, we decided we really loved the car and called Caden on Monday to see if we could discuss the price and terms. Bottom line, we bought the car at the price we wanted. Outstanding service from Caden to the Sales Manager to the Contract/Finance Team!
Fast & Awesome
great car has everything and then some. lots of seats and 2nd row heated is cool. it could use a little more under storage in the rear compartment and a cover
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Very prompt replying and offered a lot of helpful
Very prompt replying and offered a lot of helpful information during the couple email exchanges
Great truck!
I bought my 2020 with 36k miles a couple of years ago and I now have 60k miles of trouble free very enjoyable driving. It was expensive, but worth every penny. The ride is so quiet and comfortable my wife and I prefer traveling in it instead of our 2018 Acura MDX which we also love. The 5.3 V8 has plenty of power and towing ability. The multi-function tail gate is genius, I hope to never be without one again. We so enjoy all the bells and whistles, especially the wireless phone charger. So glad I bought this truck!

Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
My wife and I came in looking to get a larger suv for our
My wife and I came in looking to get a larger suv for our growing family. We were interested in the new Armada and Joe, Rich and there team took amazing care of us and treated us like family. They answered every questions we had and made the numbers work for us. Thank you so much!
Short turn radius
I purchased pre-owned 2020 1500 SLT in February of this year. The truck rides comfortable and has plenty of room front and rear. My and I both enjoy it. My only drawback is the turn radius (lock to lock). It lacks compared to my wife's 2018 Yukon SLT, or the 2016 Ram I traded in. Have to many times maneuver twice to park it going forward or reverse. Otherwise happy with our purchase.
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Used
2024 GMC Yukon SLT
Vehicle information
Features






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2016 GMC Yukon SLT
Vehicle information
Features






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2017 GMC Sierra 1500 SLE
Vehicle information
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Used
2024 GMC Sierra 1500 Pro
Vehicle information
Features






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used GMC by price
GMC under $1,800,000 by city
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GMC under $1,800,000 in Thornton, CO
175 Great Deals out of 729 listings starting at $3,791
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GMC under $1,800,000 in Thornton, CO by model
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GMC Sierra 1500 under $1,800,000 in Thornton, CO
41 Great Deals out of 248 listings starting at $6,995
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GMC Acadia under $1,800,000 in Thornton, CO
46 Great Deals out of 98 listings starting at $6,299
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GMC Sierra 2500 under $1,800,000 in Thornton, CO
16 Great Deals out of 89 listings starting at $12,980
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GMC Yukon under $1,800,000 in Thornton, CO
15 Great Deals out of 77 listings starting at $4,999
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GMC Yukon XL under $1,800,000 in Thornton, CO
8 Great Deals out of 46 listings starting at $7,999
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5 Great Deals out of 35 listings starting at $12,490
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GMC Sierra 3500 under $1,800,000 in Thornton, CO
2 Great Deals out of 31 listings starting at $19,999
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.