Used Cadillac CT6 for sale near Tustin, CA

Matt my service advisor was great and time estimated for service was spot on almost to the minute

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

I just wanted to say Tim Hoffman in service exceeded my expectations. I bought a 2016 CT6 from a dealership in Crystal Lake. I put 300 miles on the car and noticed something was not right with Transmission good thing I had the extended warranty. Tim coordinated everything it was a big job and he coordinated everything with warranty company and kept me updated on status. Thanks Tim one of the best dealership experiences I have had with a dealer. Al B

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.

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

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.

Reuben Floyd was incredibly helpful in guiding us toward our 2024 Rav4. He was patient with some of our indecision but once we got to writing it up, he was very efficient and thorough. He was also a very pleasant person that we got to know. He was focused and really cares about people. He's a very valuable employee and we are grateful that he took such good care of us!

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.

First time buying a car online. Jeff Rick was great. He made the process easy and answered all my questions about the car. He sent me a video of the car as well. The purchase was quick and easy for being out of state. Just waiting for the car to be transported here which was also easy to set up. Thank you.

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’m happy today to learn technology and all features, which Tucson 2025 offers, with Brand Ambassador Jenny Bethell. She is professional, kind and very patient with senior driver. Now I feel confident ,up to date with technology and safety. Thank you very much!

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

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.

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.”

Excellent salesman, Joe Hanks, smooth process in the car experience highly recommend! Up front no pressure, went above and beyond. Love our new car, Definitely make Sundance your first stop for a new car!

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.

First time at Cochran Monroeville GMC a very pleasant experience from beginning to the final deal. Salesman Darius was very easy to deal with making sure my buying experience was stress free. During the final numbers of the deal he explained everything and made sure I was pleased. Lucas Anderson in Finance was very proffessional and efficient. Near the end of my experience Sales Manager Dale Taylor checked with me making sure I was totally satisfied with my deal.

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.

Found the car with the mileage we'd been looking for. Drove from Tallahassee, FL. to Ocala, FL. and Sullivan's to trade our existing car in on the 2019 Mercedes. In and out in just over 2hours. Gotta be a record for buying a car. Sullivan's was very efficient and professional. Highly recommend them for your next vehicle.

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

The entire process was smooth, efficient and extremely pleasant. No pressure and no surprises and the entire team was very friendly and helpful. An excellent experience in every way.

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.

Mr Kenneth Simms was the best Salesmen. I didn't want all that normal Salesmen fluff. I wanted a car for my retired Mom who's car was recently totaled and I wanted it quick. I did my research, called with the exact car and my specs, and he LISTENED. He was patient, professional, and knowledgeable and above all accomodated our needs. Bottom line, he was selling a car and we were buying one. Mr Kenneth made the DEAL. Even delivered a car to my Mom in Gonzales, then met us at the dealership on his off day to deliver her actual vehicle. Thanks Mr Kenneth! God Bless.

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

Susan and Roy were fantastic today helping me with my phone connection and the fob battery. Also answered some of my other questions. Can’t say enough good things about them. They were Great!!

This is our second purchase from Eric Corley he’s a true professional I highly recommend you ask for him he represents Mercedes Benz of Gainesville very well if I could give six stars I would!! A very satisfied customer!

I had an issue with my Rolls Royce and was not happy. Steve Grossman stepped in and after a few days he made me very happy and really took care of me. As a former dealer and Auto executive Steve Grossman did a great job. I recommend the Veanan group in West Palm

We were very happy with the treatment we received. Bianca was very knowledgeable about the vehicle and made sure all of our questions were addressed.

My sales person Alex Valdez was great! I thought he would give up on me because I was very picky and expected alot. I had resigned myself to keeping my current car, but then he found me the perfect vehicle and I love it! All in all it was a pleasant experience and I highly recommend McGrath Honda/Elgin. Just ask for Alex Valdez and he will work hard to find you what you want!

Today, I purchased a Nissan Ariya at Auto Boutique. My salesperson was Lou Walker. Lou was great. He was knowledgeable, patient, professional and courteous. Unlike most used car salesmen, Lou was not pushy. He gave me the information that I needed to evaluate the cars of interest to me and the time to process the information. This was my first purchase at Auto Boutique and Lou made it very pleasant and stress-free. If you need a car, Lou is your guy!

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.

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 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.

Very good customer service