Used Cadillac CT6 for sale near Wallingford, CT

Great place to do business with. The staff are super friendly and they always have the best deals. Will definitely buy from Seattle Jeep again. Lots of fun and they always go above and beyond for you.

No repairs required runs great beautiful design brakes are squeaking seems to be stalling when going basic speed. Love the interior exterior design comfortable ride

Great sales team . Excellent communication and staff . Best truck purchase ever . Very helpful and experienced . Will definitely be a return customer

I have a ct6 platinum with super cruise. 4 years now bought used . I have driven it 60k miles. Not a single problem. Normally gets 30mpg with the 3.6v6 on highway about 24 in town. The car handles fantastic on any surface. I love it. Highly recommend it.

We drove 5 hrs to purchase our vehicle and it was well worth the drive. We bought a used car and we were treated like we won the lottery and we’re buying a dozen new ones!! Brad Arrington was the best! Everyone we dealt with was top notch. Who knows, someday we may drive 5 hrs just to come back. The Browns Gainesville Texas

I purchased the CT6 Luxury AWD new in 2017. I haven't had any issues at all. I love the double sunroof and the 360 camera view. But what I am really upset about is GM discontinued this model. It is an awesome driving car and I won't be getting rid of it anytime soon.

I wanted to say Thank you to Ron Susi at Toyota Direct…He went above and beyond to help us purchase our new 2025 Tacoma TRD Sport.

I purchased vehicle use. I had car for four months,so far iam satisfied with it ,previously own ct6.i was concern about transmission problems. Think previous owner had cadillac, to fix problem. Car has plenty,power.

The paperwork took some time but now I see why. We are very happy with the car but a few issues came up....brake fluid was low causing the brake pedal too pulse. A quart too much engine oil. Windshield fluid was empty.

runs good never gave me any problems and still have it until this day wasnt a bad purchase i recommend this car for anybody who likes them

Had so many bad experiences with supposed deals online just be be lied to when arriving at the dealership. Mark was great to deal with and was up-front on pricing. We had a deal in place online and when arriving at the dealership, there were no games. He backed what he said and because of that we purchased a vehicle from him.

I purchased the car new and have had it for 6 years, it has been nothing but awesome in many ways. The styling has endless elegance and will always be a good looking car. Being at "this time" possibly the last of the BIG BODY Cadillacs it will remain special in many ways. It is a great driving car with the combination of AWD ultimately makes it a year round car for my location.

We felt comfortable through the whole process. Rich in sales did a great job and the gentleman in finance did as well. All questions were asked. We didn't feel the usual anxiety when buying a car.

Love the style, ride and the ease to learn the technology. Very happy with getting premium performance using regular gas. Plenty of room for all 5 passengers.

I was very fortunate to have the greatest salesman, manger, General manager and finance director in the business assist in my purchase. Thank you "Coach" for all you do for me and the family

It is easy to navigate , good for gas, quiet but still shows the work of the engine. Warms up quickly and has luxurious look.

I purchased a 2025 Ct4 Luxury from Delaware Cadillac in July 2025. I noticed some inconsistencies in the paint on the passenger rear quarter panel and the rear parking sensors were working intermittently. I contacted Tony in the service department, and she checked the problems I had. She scheduled an appointment with the paint service and had the parking sensors checked. The day I came in for the scheduled service, Mike checked my Ct4 again to make sure he saw the problems too be corrected. I was given a Ct4 to drive while the work was being done on my vehicle, this was helpful because its the same car and I did not have to figure anything out. Mike called and told me that the paint was worked on but he did not think it was any better than I had done with the touch up and the parking sensors were checked and seemed to be as they were supposed to be. When I arrived to pick up my vehicle, I was very happy with the paint work and the vehicle was clean as I left it. It is important to me that some one knows that I am very satisfied with the way this issue was handled . I want give kudos to Dane Tjaden for sales, Mike Anderson and Toni Spille for service. Thank you, I have never been treated this well by a car dealer. ( Cadillacs are more than a car!) T. A. Olin To Whom It May Concern, I purchased a 2025 CT4 Luxury from Delaware Cadillac in July 2025. Shortly after, I noticed some inconsistencies in the paint on the passenger rear quarter panel and found that the rear parking sensors were working intermittently. I reached out to Toni Spille in the service department, who promptly scheduled an appointment to address both concerns. When I arrived for the service, Mike Anderson inspected my CT4 again to confirm the issues and ensure everything would be addressed properly. I was provided with a loaner CT4, which I greatly appreciated—it made the transition seamless since it was the same model I’m familiar with. Mike later contacted me to provide an update. He informed me that while the paint had been retouched, he personally didn’t feel it was much of an improvement over my own previous touch-up. He also noted that the parking sensors were tested and found to be operating as expected. However, when I picked up my vehicle, I was genuinely pleased with the paint work—it looked much better than I anticipated. The vehicle was also returned to me clean and in great condition, exactly as I had left it. I want to express my sincere gratitude for the excellent customer service I received. It’s important to me that someone knows how satisfied I am with how this situation was handled. I’d like to especially recognize Dane Tjaden in sales, and both Mike Anderson and Toni Spille in service. Their professionalism, transparency, and care made all the difference. Thank you again. I have never been treated this well by a car dealer—and I firmly believe that Cadillacs are more than just a car! Sincerely, T. A. Olin

Plenty of room. I used the controls on the steering wheel. Never on console, sometimes on screen. Seldom take eyes off road. Had twenty months left on my XTS bumper to bumper . Next car was going to be CT6. I don't know what Cadillac is doing with sedans. There were no CT6 in Tampa had to go to West Palm but the CT4 and 5 were too small. The screen on the CT5 looked like it was slapped on top of dash and sun roof left something to be desired. Cadillac and sedan?????. looks like Electric in the future ?????

We had a wonderful experience with our visit. Joseph P was great to deal with. In and out within 3 hours for a 10k checkup

Recently bought a used CT6 w/2.0 Turbo (2018 with 39K miles). Have put only about 500 miles on it so far, but, WOW!!! This car is amazing! This car lives up to it's reputation as a builder of premium American luxury vehicles. My las t Cadillac was a 2000 STS...which was mediocre by comparison. It is soooo beautiful inside. I like that the screen is integrated into the dashboard. It's size takes a bit of getting used to, as my last car was a Mercedes E250. I test drove the 2.0 turbo and the 3.0, and found the 2.0 Turbo to be equally responsive but smoother. Exterior styling is simple clean and exudes luxury. I get so many compliments, heads turns and such. I love the Apple Car Play feature that projects what's on my phone to the in-dash screen. Recently did a road trip and got an AVERAGE of 33.4 MPG on the highway. I am getting 25 MPG+ around town. To me, that's pretty impressive for a car his size. In keeping with Cadillac's reputation, this car drives so smooth and quiet. Last time I drove a car this quiet and smooth as a Lexus LS460. At $30K less than the price of an average EV, it will take a lot of gas to make up the cost difference of those overpriced cars.

Matt was very knowledgeable and professional and he made the experience very easy and I am very happy with the outcome. I would highly recommend and I will be going back in the future for my business vehicles

This car drives like a dream and the 3.6L Engine gives me that burst of power you really want when entering a fry. Love the Apple Play features that put all the apps from your phone on the screen, allowing me to listen to my audio books. The turn by turn navigation system is really nice and the screen location is just in the right place.

From start to finish everyone was great, it was a no pressure sales deal. That works for me the whole team was great. My salesman Grant F. Is fantastic. First time a finance manager was considerate and told me the product value adds that were tailored to my needs. Intent sales contact Rebecca.was fantastic

Having had my 2018 Cadillac CT6, equipped in the optional Premium-Luxury trim level, for nearly 3 years, I can honestly boast of its many attributes. It offers wonderful styling inside & out, the availability of virtually every current "high-tech" option conceivable, and has proven to be consistently reliable – and, while some may describe it as a bit “pricey,” it’s actually a relative bargain, when compared to its European competitors. The CT6 harkens back to the classic Cadillac sedans of years gone by, as its size, comfort, and luxury amenities remind owners and admirer’s alike, of many of those all-American classics. Although it's a pleasure to drive, even when equipped with the new and improved, 3.6L V6, the optional 3.0L Twin Turbo engine is recommended for those drivers who like a “little something extra” when depressing the accelerator pedal. With regard to performance, it is somewhat regrettable that an (optional) V8 is unavailable in the company’s “Flagship model.” This absence, I suspect, is a rather obvious "nod” to the so-called green energy movement that seems to have “infected” the entire auto industry, of late. In summary, if you’re looking for a full-sized American luxury car – look no further. The Cadillac CT6 “fits that bill, to a tee.”

EDIT FOR PREVIOUS REVIEW I previously left a 1 star review. Alan reached out the following morning and worked everything out with the pricing. I actually drove up the next day and purchased the new 2026 Traverse. Thank you Alan for reaching out. Huge thanks to Mo S. for being an awesome sales guy. Signing paperwork was very easy. The whole process was perfect after getting past the initial pricing issue. I definitely recommend Serpentini in Strongsville

I recently purchased a 3.6 Premium Luxury CT6 with 30k miles, had the transmission shudder after about a month of owning it. Since it has a 100k PT warranty I took it in and the dealer flushed the transmission and replaced it with a different brand, works perfectly now. Took it on a 4000 mile road trip over the holidays. Outstanding ride, 28mpg avg doing 80mph. This car is a joy to drive, plenty of room, plenty of power and excellent ride quality. Would highly recommend. I’ve owned this car for 6months now and have only seen 2 on the road.

Paul was a great service advisor when I came in for my 6 month maintenance on my vehicle. The videos and documents he provided to me while I was waiting for my vehicle, kept me informed throughout the entire process. Very friendly employees at this Lexus dealership and excellent customer service overall.

My vehicle is an excellent car to drive. The CT6 is a great handling, smooth, comfortable driving vehicle. This is my third Cadillac that I am driving and plan on continuing to drive one.

Julia Vargas was very helpful and kind as well! She also seemed very knowledgeable and we appreciate her service very much!

Almost all options are included in a specified trim level so purchasing is straightforward. “Infotainment Center” has an overwhelming combination of great GPS navigation, electronics inter-connectivity, communications, and entertainment features. Enhanced safety features are impressive, from notices (visual and tactile) of cross-traffic backing out of driveway, to blind-spot warnings, following-distance display, etc.

Excellent team to work with across the board. The entire process was painless albeit time consuming. Would definitely recommend for anyone looking for an easy to work with team.

I'm trading my 2019 CT6 after two years. Have really enjoyed this car. There is no better highway cruising car ever, it's incredibly smooth but tightly built, not sloppy ever. Great gas mileage, very peppy, and beautiful. The electronics are very easy to understand. The only complaint- driver's seat too short, I'm 5'11", long legs, and I had a buy a bolster cushion. Otherwise, I've loved it. Trading up to a BMW 8 series for more excitement.

Great customer service and people, really easy process from start to finish. I would definitely recommend to anyone looking to buy a car, hands down the best experience I have had!

I’m really enjoying the smooth ride and luxury features. The panoramic sunroof view is amazing and the comfort of the sedans leather interior is unparalleled.

Best experience. This dealership exceeds expectations in parts and purchasing. They really know how to treat a customer. They are knowledgeable, personable and friendly. Love when I arrive they remember me and call me by my first name.

They just know how to treat and value their customers. Every single person I've interacted with has treated me as if I were their most important customer. This is my first Caddy, but it won't be my last!

This automobile is a vehicle of dreams Power roomy front and back Movies Massaging seats heated and cooling seats. Dual sunroof s. Shades. I feel special just Driving or Riding

Bob Johnson LeRoy delivers exceptional service, honest communication, and a hassle-free buying experience. Their friendly, knowledgeable team makes every visit enjoyable.