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Used
GMC cars
for sale
near
Clayton, MO
under $40,000
- 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
2017 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
Very accommodating
Rick's the best !!! It was was easy to get pre qualified on line which made the process much faster. Rick went above and beyond to make sure I felt comfortable with my purchase. Great guy, great staff, great service.
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
2014 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great truck, solid engine, comfortable, smooth, and it
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.






Used
2013 GMC Terrain SLE-2
Vehicle information
Features
Reviews
check the oil every tank fill, dealer advised if it
check the oil every tank fill, dealer advised if it dropped too far it would scrap the timing chain, interference engine lock up. a 6 inch strip of paint blistered off the roof, the rear deck won't set down horizontal (everything slides to the rear. rides like a limo, handles like a dream, no real probs. 168k on the odo.






Used
2023 GMC Terrain SLE
Vehicle information
Features
Reviews
Rick was awesome!
Rick was awesome!! Fast, friendly and would recommend buying a vehicle from Rick Valenti. Call them!!
Love Our New 2023 Denali Terrain!
We purchased the Denali Terrain 2023. The car is great. I have had four knee surgeries and needed a car to get in and out easily and comfort seating. The controls for adjusting the seat just the way you like are great. I am troubled also by back problems and totally love the heated seat when needed. Sometimes I just want to ride around and turn the heat on and adjust seat so my back feels better. The different controls and are numerous. I love the safety control warnings and info with traffic. The screen is fabulous and helps so much. When ever I park I like to drive in and park and then hold on brake put it in reverse so the screen then comes on and shows how I parked. I like the levers in cargo area for putting seats down and also like how flat they sit. Plenty of room. The back seat is roomy even when person in front is back. Enjoy being up higher than a vehicle. I feel I can see more and it also makes me feel safer. The Terrain looks beautiful and love all the chrome in front. The car seems bumpy but not as bad as our last. The roads are in rough shape here. It has a lot of pick-up my husband demonstrated that to me and he wont be doing that again unless it is necessary. It is a turbo 4 cylinder and can not believe the power you feel. All in all Iove the car and getting good mileage. Purchased car from Boucher in Waukesha. They were not pushy. Explained everything in detail and were very fair. Great place to purchase!

Used
2022 GMC Canyon Elevation
Vehicle information
Features
Reviews
Charlies was our salesman and was great to work with.
Charlies was our salesman and was great to work with. we came to test drive a truck & possibly trade ours in. He was informative and worked with us on the whole process. Deal went great and went away with a new truck to us and the trade in value we got on ours was within our expectations. Would go back again. Smooth transaction!!! Highly recommend Charlie!!
Diesel AT4 it!
GMC Diesel Canyon AT4. I've had this truck for a year-11,000 miles. I love it. The Denali and Elevation trim looked like junk. The AT4 can't compete with the Tacoma off road but, It holds it's own off road. The Diesel pulls like a beast and the exhuast brake, on all the moutain passes I drive, is worth it's wieght in Gold. I trailer the max. capacity regularly and it's smooth sailing. I traded in my 2500HD Silverado with the vortec 6.0 for this big, little truck. Best decision I've made in a while. I had this truck on order for 8 months and Gm never accepted the order. I finally found exactly what I ordered, just off the truck that morning that I called. 1300 miles away, I jumped on a plane to go get it. Crying shame GMC discontinued the diesel. The extra $ per gallon right now is easily washed by the increase in mileage, 32+ higway, 19 trallering almost 8000 #'s. I wouldn't want the truck without it. Wouldn't want the Elevation or Denali. Diesel AT4 is the truck. I'll keep it the rest of my life barring accident. I'm sure I can get 40 years out of this truck doing 10-12k a year. The regeneration of the exhaust has never come up but, I only do a little round town driving. Most of my miles are highway and hauling a load. I've heard horror stories about regen. from city folk, commuters... You get what you aim for. If you've given it a lot of thought and the diesel AT4 seems right for you, you won't be disappointed. Good luck finding one. GM - You've a winner here. don't let it get away. Ps. Cars.com doesn't have a choice of how I use this truck for WORK. And wouldn't let me submit this review without selecting one of thier 3 inadequate choices. So, I selected having fun cause I believe everything should be but, this is my WORK TRUCK!

Used
2019 GMC Acadia Denali
Vehicle information
Features
Reviews
My daughter purchased a new car from Sapaugh last night
My daughter purchased a new car from Sapaugh last night and the experience was the best I have had buying a new car. Logan Cash and Rick Murray were great to work with and took the time to explain everything to my daughter. If anyone is looking for a new car, I highly recommend contacting Logan Cash at Sapaugh.
Its a decent car, but on a car frame.
Its a decent car, but on a car frame. I had a GMC Envoy a truck frame SUV and it was so much nicer to sit higher than the sedans and baby SUVs on the road. Doe have nice accelerations and mileage tho.

Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
COULDNT ASK FOR BETTER SERVICE, GO SEE JOHN IN SERVICE TO
COULDNT ASK FOR BETTER SERVICE, GO SEE JOHN IN SERVICE TO GO ABOVE AND BEYOND YOUR NEEDS
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
2023 GMC Acadia FWD SLT
Vehicle information
Features
Reviews
As a woman who honestly knows nothing about cars, I was
As a woman who honestly knows nothing about cars, I was nervous that I was going to be conned into things I didn’t need. I was lucky enough to have Mike help me who was extremely professional, friendly, and explained in detail what I needed now and suggestions for services repairs that were not needed immediately. I never felt pressured but ended up doing everything. There is no other dealership I will use in the future!
Perfect for us!
As we age, our reaction time may become slower. This vehicle is loaded with features that make me a safer driver. It connects wirelessly with my iPhone for hands-free Apple CarPlay. Love that! And the Acadia is a dream to drive. It’s the perfect size for me and my family

Used
2016 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Conan Thomas was my service advisor and the service was
Conan Thomas was my service advisor and the service was excellent. Took care of everything and made this service call as easy for me as possible. I will always go back to Sapaugh.
My 2016 GMC Sierra 1500 SLT All Terrain - Love it!
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.

Used
2023 GMC Acadia Denali
Vehicle information
Features
Reviews
I met with Dave Fisher, he made me feel very comfortable
I met with Dave Fisher, he made me feel very comfortable from the beginning all the way through the whole process of buying a used vehicle. No pressure, no stress. I was very happy I decided to go to Sapaugh GM Country. Thanks Dave for making the process and easy one
Great road trip car
Got it for the ride ,comfort,great gas mileage on trips,can do a 750 mile trip and not be warn out from the ride.Can carry a lot of stuff .All the different options are great
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Used
2018 GMC Sierra 1500 Denali
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Used
2021 GMC Yukon SLT
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Used
2021 GMC Sierra 1500 AT4
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Used
2021 GMC Sierra 1500 SLE
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Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2021 GMC Sierra 1500
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2019 GMC Sierra 1500 SLT
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 $40,000 by city
-
GMC under $40,000 in Clayton, MO
105 Great Deals out of 514 listings starting at $5,450
-
GMC under $40,000 in Richmond Heights, MO
105 Great Deals out of 514 listings starting at $5,450
-
GMC under $40,000 in University City, MO
105 Great Deals out of 514 listings starting at $5,450
-
GMC under $40,000 in Brentwood, MO
105 Great Deals out of 514 listings starting at $5,450
-
GMC under $40,000 in Maplewood, MO
105 Great Deals out of 512 listings starting at $5,450
-
GMC under $40,000 in Pagedale, MO
101 Great Deals out of 470 listings starting at $5,450
-
GMC under $40,000 in Ladue, MO
105 Great Deals out of 514 listings starting at $5,450
-
GMC under $40,000 in Hanley Hills, MO
101 Great Deals out of 472 listings starting at $5,450
-
GMC under $40,000 in Wellston, MO
105 Great Deals out of 494 listings starting at $5,450
-
GMC under $40,000 in Vinita Park, MO
101 Great Deals out of 472 listings starting at $5,450
-
GMC under $40,000 in Rock Hill, MO
105 Great Deals out of 514 listings starting at $5,450
-
GMC under $40,000 in Olivette, MO
105 Great Deals out of 514 listings starting at $5,450
GMC under $40,000 in Clayton, MO by model
-
GMC Sierra 1500 under $40,000 in Clayton, MO
24 Great Deals out of 167 listings starting at $6,295
-
GMC Acadia under $40,000 in Clayton, MO
19 Great Deals out of 128 listings starting at $6,700
-
GMC Terrain under $40,000 in Clayton, MO
40 Great Deals out of 124 listings starting at $5,500
-
GMC Canyon under $40,000 in Clayton, MO
5 Great Deals out of 26 listings starting at $12,250
-
GMC Yukon under $40,000 in Clayton, MO
8 Great Deals out of 25 listings starting at $5,450
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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.