Used Cadillac CT6 for Sale near Puerto Rico
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 88,426
- Stock #:
- 39965
- VIN:
- 1G6KP5R67JU123963
Sponsored by R&B Car Company South Bend
2018 Cadillac CT6
3.0TT Platinum AWD
88,426 mi
$28,669
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Auburn with Jet Black accents
- Transmission:
- Automatic
- Mileage:
- 62,581
- Stock #:
- LU100425
- VIN:
- 1G6KE5RSXLU100425
Sponsored Listing
2020 Cadillac CT6
3.6L Premium Luxury AWD
62,581 mi
$38,347
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Gray (Graphite Metallic)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 92,397
- Stock #:
- B6034B
- VIN:
- 1G6KG5R62GU166678
-$388
Sponsored Listing
2016 Cadillac CT6
3.0TT Premium Luxury AWD
92,397 mi
$18,088
$17,700
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Radiant Silver Metallic
- Combined gas mileage:
- 29 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Sahara Beige)
- Transmission:
- Automatic
- Mileage:
- 29,656
- Stock #:
- T107649
- VIN:
- 1G6KA5RK9KU107649
2019 Cadillac CT6
2.0T Luxury RWD
29,656 mi
$27,896
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 124,454
- Stock #:
- C2960N
- VIN:
- 1G6KF5RS5GU163029
2016 Cadillac CT6
3.6L Premium Luxury AWD
124,454 mi
$15,180
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 71,134
- Stock #:
- P02-139772-K43
- VIN:
- 1G6KH5R64HU139772
2017 Cadillac CT6
3.0TT Premium Luxury AWD
71,134 mi
$20,554
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Exterior color:
- Gray
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 78,322
- Stock #:
- 142386
- VIN:
- 1G6KH5R63HD142386
2017 Cadillac CT6
3.0TT Platinum AWD
78,322 mi
$21,549
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Gray (Steel Metallic)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Light Platinum With Jet Black Accents)
- Transmission:
- Automatic
- Mileage:
- 66,694
- Stock #:
- PAW275
- VIN:
- 1G6KG5RS3JU126016
2018 Cadillac CT6
3.6L Premium Luxury AWD
66,694 mi
$26,416
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 61,941
- Stock #:
- W4026
- VIN:
- 1G6KP5R67JU158311
2018 Cadillac CT6
3.0TT Platinum AWD
61,941 mi
$31,710
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Stellar Black Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 50,123
- Stock #:
- P010574
- VIN:
- 1G6KP5R65JU143564
2018 Cadillac CT6
3.0TT Platinum AWD
50,123 mi
$33,345
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Light Platinum with)
- Transmission:
- Automatic
- Mileage:
- 69,955
- Stock #:
- JE323
- VIN:
- 1G6KG5RS7JU127833
2018 Cadillac CT6
3.6L Premium Luxury AWD
69,955 mi
$25,694
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Transmission:
- 8-Speed Automatic
- Mileage:
- 90,864
- Stock #:
- AU6401
- VIN:
- 1G6KD5RS7JU125525
2018 Cadillac CT6
3.6L Luxury AWD
90,864 mi
$23,394
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Crystal White
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 46,892
- Stock #:
- 419351
- VIN:
- 1G6KD5RS9GU157675
2016 Cadillac CT6
3.6L Luxury AWD
46,892 mi
$25,419
Customer summary
The Cadillac CT6 has consistently impressed owners across its model years, with many praising its luxurious feel, smooth ride, and powerful performance. Reviewers often highlight its advanced technology and spacious interiors. However, some concerns have been raised about seating comfort and road noise, with a few drivers even pointing out issues with the touch screen and transmission. While it offers an enjoyable driving experience, high maintenance costs and missing features at certain trim levels have also been noted as drawbacks.
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Moonstone Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 115,494
- VIN:
- 1G6KD5RS4GU164758
2016 Cadillac CT6
3.6L Luxury AWD
115,494 mi
$14,099
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Cinnamon w/Jet Black Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 156,511
- Stock #:
- T60177C
- VIN:
- 1G6KG5R68GU153305
2016 Cadillac CT6
3.0TT Premium Luxury AWD
156,511 mi
$13,629
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Red (Burgundy)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 26,915
- Stock #:
- 2061AI
- VIN:
- 1G6KK5R63GU152061
2016 Cadillac CT6
3.0TT Platinum AWD
26,915 mi
$35,364
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 58,329
- Stock #:
- LBO5035A
- VIN:
- 1G6KD5RS7KU136994
2019 Cadillac CT6
3.6L Premium Luxury AWD
58,329 mi
$29,049
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Red Passion Tintcoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 17,038
- Stock #:
- A12897
- VIN:
- 1G6KD5RS7HU154338
2017 Cadillac CT6
3.6L Luxury AWD
17,038 mi
$25,696
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 130,253
- VIN:
- 1G6KN5R65HU125632
2017 Cadillac CT6
3.0TT Platinum AWD
130,253 mi
$20,099
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Stellar Black Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Very Light Cashmere With Maple Sugar Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 84,650
- Stock #:
- 261433C
- VIN:
- 1G6KP5R6XJU103741
2018 Cadillac CT6
3.0TT Platinum AWD
84,650 mi
$28,064
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Radiant Silver Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 85,125
- Stock #:
- 26-0390A
- VIN:
- 1G6KD5RS1JU156902
-$400
2018 Cadillac CT6
3.6L Luxury AWD
85,125 mi
$20,490
$20,090
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Cinnamon with Jet Black Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 66,486
- Stock #:
- HU191254PC
- VIN:
- 1G6KF5RS7HU191254
2017 Cadillac CT6
3.6L Premium Luxury AWD
66,486 mi
$20,681
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 61,941
- Stock #:
- W4026
- VIN:
- 1G6KP5R67JU158311
Sponsored Listing
2018 Cadillac CT6
3.0TT Platinum AWD
61,941 mi
$31,710
How much does the Cadillac CT6 cost in today's market?
Used Cadillac CT6 prices span a wide range depending on model year. Here's what the market looks like right now:
| Model Year | Current Avg. Price | Year-Round Range |
|---|---|---|
| 2019 | $27,959 | $27,195 – $29,294 |
| 2018 | $23,384 | $22,948 – $24,462 |
| 2017 | $18,527 | $18,479 – $21,803 |
| 2016 | $18,891 | $17,969 – $20,549 |
The Cadillac CT6's current nationwide average price is $21,570, and its lowest point over the past year was $21,369. Recently, prices have come down for the 2017, 2018, and 2019 models, making now a good time to shop recent model years.
Is the Cadillac CT6 a good car?
Yes — the Cadillac CT6 is a strong pick if you want a luxury sedan with a refined driving experience. The all-generations owner rating is 4.64/5 across every model year in the data.
Owners consistently praise the CT6 for its luxurious feel, smooth ride, powerful performance, advanced technology, and spacious interior. Many reviews also highlight the car's quiet cabin and upscale design.
28.6% of listings are priced as good or great deals.
Are Cadillac CT6 models reliable?
Owners consistently praise the Cadillac CT6 for its smooth ride, powerful performance, and upscale feel, while expert and owner feedback also points to advanced technology and a spacious cabin as recurring strengths. Across the model years, the CT6 earns especially strong owner approval, which supports confidence for used shoppers.
- Owners rate the Cadillac CT6 between 4.0 and 4.8 out of 5 stars across all model years in the data.
For long-term ownership, you should plan carefully around maintenance and inspect the vehicle's service history closely before buying.
What should I look for when buying a used Cadillac CT6?
Across all model years, at 60.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
| Model Year | Accident-Free % |
|---|---|
| 2020 | 60.8% |
| 2019 | 57.4% |
| 2018 | 60.2% |
| 2017 | 60.4% |
| 2016 | 63.5% |
What Cadillac CT6 do most buyers choose?
The Cadillac CT6 years with the most listings are 2017, 2018, and 2016.
| Model Year | Total Listings | Good + Great Deals % |
|---|---|---|
| 2017 | 265 | 29.4% |
| 2018 | 244 | 28.3% |
| 2016 | 170 | 30.6% |
| 2019 | 169 | 26.6% |
| 2020 | 74 | 25.7% |
Higher-volume years usually give you more shopping choices, which can make it easier to compare prices, trims, and condition. They also tend to attract more deal opportunities simply because there are more listings in the market.
What is the Cadillac CT6's resale value?
| Model Year | Current Avg. Price | Year-Over-Year Change |
|---|---|---|
| 2017 | $18,527 | −15.0% |
| 2019 | $27,959 | −5.16% |
| 2018 | $23,384 | −4.41% |
| 2016 | $18,891 | −3.88% |
Prices are moving lower across the model years shown, which can work in your favor if you're shopping used. The sharpest drop stands out clearly, while the other years show smaller declines. Overall, the pattern points to a market where buyers may find better value than they did a year ago.
The 2016, 2018, and 2019 model years have held their value best, with the smallest year-over-year price changes.
Should I buy a used Cadillac CT6 now?
Buy now if:
- Price trend: The 2019 model is at −5.16% versus a year ago, and the 2018 model is at −4.41%.
- Deal availability: The 2019 model has 26.6% good and great deals, and the 2018 model has 28.3%.
- Sweet-spot year: The 2017 model has the most listings at a current average price of $18,527.
If you're buying used today, the 2017 model year offers the best mix of value and availability.
These recommendations are based on CarGurus' proprietary market data from September 29, 2026, CarGurus experts' opinions, and generative AI.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
4.7 Overall rating
Customers say
The Cadillac CT6 has consistently impressed owners across its model years, with many praising its luxurious feel, smooth ride, and powerful performance. Reviewers often highlight its advanced technology and spacious interiors. However, some concerns have been raised about seating comfort and road noise, with a few drivers even pointing out issues with the touch screen and transmission. While it offers an enjoyable driving experience, high maintenance costs and missing features at certain trim levels have also been noted as drawbacks.
AI generated from the text of customer reviews.
Filter by year
Filter by rating
What people say
Robert S
Reviewed a 2016 Cadillac CT6 on Jan 21, 2026
I actually have the 2017 ct6 . I love it. Great car!
James M
Reviewed a 2018 Cadillac CT6 on Oct 22, 2024
Love this car. Best car ive owned. All i want is a cadillac going forward
Robert S
Reviewed a 2016 Cadillac CT6 on Jan 6, 2026
The only thing better would be the 3.0TT. engine. I have the 2017 3.6 v6 engine and its an awesome car too.
Christopher K
Reviewed a 2019 Cadillac 3.6L Premium Luxury AWD on Mar 12, 2026
Beautiful car with comfortable seating and very generous options and colors
Cadillac CT6 Trims
| Trim type | MSRP |
|---|---|
| 3.6L Premium Luxury AWD | $74,495 |
| 4.2TT Platinum AWD | $96,495 |
| 3.6L Luxury AWD | $58,995 |
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
Cadillac CT6 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of Cadillac CT6 prices has changed over time.
See more price trendsCadillac CT6 Pricing Analysis
Pricing Analysis by Model Year
Key Insights
- Depreciation Curve: The 2017 model year exhibits the steepest depreciation at -65.9%, indicating significant value loss over time.
- New-Car Premium: The 2020 model year has an average price of $34,672, which is still -41.2% below its starting MSRP of $58,995, reflecting a strong new-car premium.
- Years Priced Above Starting MSRP: There are 0 years priced above the starting MSRP, suggesting that all model years are currently valued below their original prices.
Model Year Pricing
| Model Year | Starting MSRP | Avg Price | Avg Price vs Starting MSRP |
|---|---|---|---|
| 2020 | $58,995 | $34,672 | -41.2% |
| 2019 | $50,495 | $27,547 | -45.4% |
| 2018 | $54,095 | $23,037 | -57.4% |
| 2017 | $53,795 | $18,362 | -65.9% |
| 2016 | $53,495 | $19,334 | -63.9% |
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest-Price Market: The highest price city is Chicago, IL, with an average price of $26,631, indicating a premium market for the CT6.
- Best Value: The lowest price city is Washington, DC, where the average price is $19,878, presenting a more affordable option for buyers.
- Inventory Drives Stability: Chicago, IL also has the most listings at 54, suggesting a robust market presence that may stabilize prices.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Chicago, IL | 54 | $26,631 |
| Washington, DC | 50 | $19,878 |
| Dallas, TX | 46 | $22,513 |
| Philadelphia, PA | 45 | $23,533 |
| Atlanta, GA | 44 | $22,562 |
| New York, NY | 41 | $20,960 |
| Boston, MA | 39 | $23,034 |
| Houston, TX | 37 | $24,119 |
| Miami, FL | 30 | $21,247 |
| Los Angeles, CA | 24 | $21,718 |
Pricing by Trim Packages
Key Insights
- Volume Leader: The 3.6L Luxury AWD trim leads with 120 listings, indicating strong demand for this configuration.
- Premium Spread: The 3.6L Premium Luxury AWD trim has a significantly higher MSRP of $74,495, reflecting a $15,500 premium over the base trim.
- Drivetrain Effect: All trims are equipped with AWD, which may enhance their appeal in various driving conditions, contributing to their market performance.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| 3.6L Luxury AWD | 120 | $58,995 | AWD | 3.6L 335 hp V6 |
| 3.6L Premium Luxury AWD | 84 | $74,495 | AWD | 3.6L 335 hp V6 |
| 4.2TT Platinum AWD | 2 | $96,495 | AWD | 4.2L 500 hp V8 |
These recommendations are based on CarGurus' proprietary market data from September 30, 2026, CarGurus experts' opinions, and generative AI.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
