Used Buick cars for sale near O Fallon, MO under $20,000

Everyone at the dealership was amazing! They answered all of my questions, made me feel comfortable, and confident with everything! I definitely recommend this dealership to anyone looking for a used or new car.

So far its been a good vehicle. It's drives and handles well. Safety features excellent. Gas mileage excellent. Hugs the road good. I like the camera in rearview mirror.

Everyone from Joel in sales to Zach in finance was amazing to work with. They made sure I understood and was comfortable every step of the process of buying our new car.

The vehicle was great EXCEPT for the shifter which was the worst type EVER that GM designed!! I had family that could not figure out how to use it!!

Blaine was very professional and helped us buy our new car. Thanks, Blaine for everything!

Great vehicle with room for seven and plenty of cargo space. A great motorhome TOAD thru model year 2017. Powerful V-6 engine and smooth shifting transmission.

i was very satisfied with my sales person, Darryl Herndon. We were able to arrive at the sale price of the vehicle in a professional manner.

It is very soft and comfortable, it has a good audio system, the front lights are excellent, the pedestrian and vehicle warning system works well, the price is very reasonable, the interior design is very minimalist and this makes it easy to work with it, the engine is very It gives good power and you have a very good driving feeling with it, its exterior design is very similar to muscle cars, with eight headlights, it is very attractive

Excellent experience all the way around! A special thanks to Brett Harness for following up with me and making my vehicle purchase happen even though I inquired about a different vehicle a month before. I was extremely pleased with everyone involved in the entire transaction at this dealership. Highly recommended!!

I bought my 2020 Enclave new and have been totally pleased. It rides better gets better mpg smoother more quiet and a much better ‘road car’ than the compatible Mercedes and BMW company cars I’ve driven. The tranny seems to be in the best gear more often without the annoying hard downshifts. The only option I wish Buick would offer is a third seat delete… I very seldom use the 3rd seats. It would be nice if they were removable like my Rendezvous seats which offered much more cargo space without them. The excellent road manners and smooth quiet ride shortens my 450 mile trip to my daughter’s house…. And I made it there without stopping for gas! 16.3 gal to go 451 miles… on a 310hp engine. I always liked my Chevy Caprices… but this Enclave is actually better and no problems just like the Caprices.

The easiest most, efficient car buying experience we have ever had! Jeremy Guijosa was communicative and professional. Shopping here was worth the three hour drive

This is my dream car ! I love the leather interior, the color inside an out! The heated seats! The smooth ride! I also got the lex protection an love it!! I highly recommend this car an the service department. Great people!

Jeilan and Ace were amazing and super helpful. They helped us get the car we needed for our family.

This car meet all of my expectations, warm, comfortable, neat, grand and wild. The body is sleek, seats are comfortable and heated and appreciate the remote starter.

a dynamic, professional and friendly team. Visit Autonava to drive your car. Thank you highly recommended

it is 2023 and it has 146,000 miles on it with no major repairs. I change oil ever 5K miles and do all scheduled maintenance. My wife loves it. She can carry lots of her stuff and it easily converts to handle passengers.

I sold my SUV to BBC and they were very helpful with handling documents and explaining steps ensuring a smooth transaction! Will call again for future car needs.

We love this car. I've had Lincolns including the Navigator, high end Chrysler vans, "luxury" Fords like the Eddie Bauer Expedition and Mercury Mountaineers and this is by far my favorite vehicle. The Enclave projects luxury and backs it up. We have the Premium edition. The ride is excellent and far outclasses other SUVs we've owned which rode more like trucks. Plenty of room and a 5 star safety rating make it ideal for toting around the Grandkids. We went AWD for Michigan winters and plowed right through deep snow. A little more power and a little better gas milage would be nice but it's worth the trade off. 18 mph city is better than the Buick Regal Turbo we replaced and this car rides better too. I'll take the 23 mpg on the highway. As a 70s rock and roller and 45 year radio industry veteran, I love the Bose sound system. Especially when no one else is in the car! This is by far my favorite overall vehicle in 47 years of ownership. And yes the Kids and Grandkids give it 2 thumbs up!

Ryan helped my daughter make her first adult car purchase. He went above and beyond to make the car buying experience a fantastic experience for her. Everyone there were so friendly and down to earth with easy going demeanors. I would recommend them to anyone purchasing a car!!

This car met all our needs. Love the color and the interior design. Alloy wheels are very nice. Engine performance is excellent. Ride is very smooth and quiet.

The whole experience was great. Super friendly. No haggling. Worked really hard to get us what we needed though. Vehicles were in excellent shape! Facility was very nice! Brandon our salesman was so friendly and helpful. We will be back!

Bought it used in May 2022. It's a 2016 Buick Enclave awd Tucson Edition (displayed as leather). It's a nice car, was around $28,000 from carmax with 70k miles. It's first problem occurred in June 2025 when the ac stopped working, it got fixed. Only major problem was at 105k miles when the transmission had trouble. Reason why was because the dealer said it had the 4,500 lb tow package, but it was missing a crucial part needed to tow. Transmission was fixed, and car still runs fine to this day at 108k miles. 3.6L V6 288 horsepower.

My experience was outstanding with Mathis Motors and their sales team. The salesman Jacob was incredibly responsive and knowledgeable. He responded nearly immediately and was able to work the deal in the moment. We were able to set it all up in 30 minutes or less. The SUV is exactly as described and was cleaner than any used vehicle and most new vehicles I’ve ever bought. I appreciate all they did. I would and will give them my business again.

Excellent riding SUV. I would highly recommend this SUV. Not bad on gas for a large vehicle. Plenty of space. Very quiet!! Lots of room for big people. ❤️

Honestly I am 65 years old bought 40 vehicles in my life it was one of the most pleasurable experiences I'm 65 but 40 vehicles in my life and this was a very straightforward enjoyment in my life to buy a vehicle from them I've ever had with buying a vehicle the people were great honest I don't believe they would rip anybody off and I would highly recommend they have nice vehicles all price ranges I go there first

Bought 2016 used with 55k on it 3 years ago. When first purchased had transmission torque converter issue but got transmission replaced under warranty through dealer and has been amazing car since with no issues. Pretty sharp looking inside and out wish wasn’t so mini van shaped but honestly that’s how we use it. Kids love the DVD player. Definitely happy overall.

Everyone was nice and the place was extremely busy. We worked with Nick who was working with 2 sets of customers at the same time, he did a pretty good job of handling both. We test drove a truck and tried to work a deal, but it just did not get down into our price range.

I have owned this car for almost 2 yrs & it’s been very reliable & comfortable especially on long trips I would definitely buy again very happy with it.

Jamie was the best, would send anyone to him...very knowledgeable, attentive, and relaxed through the entire process. We will seek him out in the future and send friends.

Really like this SUV! Wanted more room than my Encore. Has everything I need! Good feeling when friends tell you how much they like the ride and the looks! Wife now driving the Encore, and she loves it!

Ike was very fun, friendly and professional. He made car buying experience easy and for a more personal touch he detailed my car personally

It's been great so far. Will be taking it on a road trip first of June. Bought in Jan 2021. Love the interior styling and comfort. Love the Satin Steel Metallic Color. Would recommend.

My Name is Gayle McClure, 1st I’ve been taking my car to Sunstrup over 10 years. The technicians and service advisor, Ian, and Scott are the most knowledgeable and patient people with their customers. I trust their advice, they always tell me the truth. I would recommend anyone who ask me to trust Sunstrup.

Dearrell was a great salesman. Everything was good fast past. I highly recommend you buy a car from here. They will work with you and find the of your dreams.

Jeff Reed provided great service. He is attentive to what we want to know and goes the extra step to make sure he provides that. All the people we spoke to were professional and friendly.

I have not had any problems with my Encore. I drove it to Nevada, California, Arizona, New Mexico, Texas, Kentucky and Arkansas and have not had any problems with it at all. I have had the standard maintenance on it, Radiator Flush, Oil changes and put a new battery on it in 2022. The battery it came with lasted 6 years, can't complain about that. And I just put a set of tires on it too. I am very happy with this model and would recomend it anyone looking for a GREAT SUV.

Employee was super helpful and went out of her way to help us get a new car

I know that here in Northern California, Buick isn't a very popular brand, but that means I was able to get a stunningly good deal on my new '23. I traded up from a low mileage '18 Buick Encore (not GX), and at the time of the transaction, it had a remarkable trade value. My dealer did a outstanding job on pre-sale prep and delivery. My sales rep answered my every question. I enjoyed the prior vehicle, and feel this new one will give me the same kind of driving experience. My added safety feature is the front accident/pedestrian avoidance and lane keep assist. I haven't had to use either yet, but feel good about having them aboard. This Buick strikes me as a hidden gem, full featured but still available at a price point that blows the other comparable Asian built imports out of the water.

Tyreese listened to my wants and even though my initial choice sold prior to my arrival, he found me a better option. He was very knowledgeable about the cars features which made me love my car even more.

I bought 2014 Premium AWD used w, 30k miles and odometer now reads 179k. The car has been very reliable , I have replaced the water pump, timing belt, and done brakes and oil changes, I also fixed the manifold/valve cover issue. These were all normal Repairs . I am pretty good with maintenance, so that is key w this car. If you just drive it, don’t change oil or fluids then like any car you will have problems . This one has been very good .