Used Cadillac CT6 for Sale nearGroton, MA
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Silver
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 84,510
- Stock #:
- P134614
- VIN:
- 1G6KF5RS1HU134614
-$897
Sponsored Listing
2017 Cadillac CT6
3.6L Premium Luxury AWD
84,510 mi
$21,515
$20,618
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- White
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 20,885
- Stock #:
- 114286
- VIN:
- 1G6KD5RS4JU114286
2018 Cadillac CT6
3.6L Luxury AWD
20,885 mi
$30,980
- Year:
- 2019
- 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:
- Brown (Sahara Beige with Jet Black accents)
- Transmission:
- Automatic
- Mileage:
- 30,223
- Stock #:
- KU139807
- VIN:
- 1G6KD5RS8KU139807
2019 Cadillac CT6
3.6L Premium Luxury AWD
30,223 mi
$37,583
- Year:
- 2019
- 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:
- Automatic
- Mileage:
- 97,916
- Stock #:
- 260629B
- VIN:
- 1G6KN5R65KU144981
2019 Cadillac CT6
3.0TT Sport AWD
97,916 mi
$25,014
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 59,324
- Stock #:
- 70238806
- VIN:
- 1G6KN5R67KU144030
2019 Cadillac CT6
3.0TT Sport AWD
59,324 mi
$35,597
- Year:
- 2017
- 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:
- Gray (Light Platinum w/Jet Black Accents)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 58,675
- Stock #:
- H9864
- VIN:
- 1G6KD5RS1HU165738
2017 Cadillac CT6
3.6L Luxury AWD
58,675 mi
$24,520
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Stellar Black Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 49,631
- Stock #:
- 48274A
- VIN:
- 1G6KF5RS0HU130358
2017 Cadillac CT6
3.6L Premium Luxury AWD
49,631 mi
$23,669
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- White
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- White
- Transmission:
- 8-Speed Automatic
- Mileage:
- 95,395
- Stock #:
- 166521
- VIN:
- 1G6KF5RS2GU166521
2016 Cadillac CT6
3.6L Premium Luxury AWD
95,395 mi
$19,427
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Silver
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 84,510
- Stock #:
- P134614
- VIN:
- 1G6KF5RS1HU134614
-$897
2017 Cadillac CT6
3.6L Premium Luxury AWD
84,510 mi
$21,515
$20,618
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Red Horizon Tintcoat - GPJ
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Sahara Beige w/Jet Black Accents - HMQ)
- Transmission:
- Automatic
- Mileage:
- 25,045
- Stock #:
- UT26727
- VIN:
- 1G6KE5RS9LU102957
2020 Cadillac CT6
3.6L Premium Luxury AWD
25,045 mi
$49,415
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Silver
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 81,000
- Stock #:
- 5268
- VIN:
- 1G6KN5R60HU199430
2017 Cadillac CT6
3.0TT Platinum AWD
81,000 mi
$25,704
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 58,130
- Stock #:
- 70150824
- VIN:
- 1G6KB5RS2KU130929
2019 Cadillac CT6
3.6L Luxury AWD
58,130 mi
$31,797
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Transmission:
- 8-Speed Automatic
- Mileage:
- 141,844
- Stock #:
- 194562
- VIN:
- 1G6KF5RS0HU194562
2017 Cadillac CT6
3.6L Premium Luxury AWD
141,844 mi
$14,494
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:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 95,704
- Stock #:
- JYC-114184
- VIN:
- 1G6KD5RS7JU114184
2018 Cadillac CT6
3.6L Luxury AWD
95,704 mi
$21,827
- Year:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Silver
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 48,446
- Stock #:
- 70121138
- VIN:
- 1G6KD5RS0JU152064
2018 Cadillac CT6
3.6L Luxury AWD
48,446 mi
$30,447
- Year:
- 2017
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 265 hp 2L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray
- Transmission:
- Automatic
- Mileage:
- 101,663
- Stock #:
- CVL2637
- VIN:
- 1G6KA5RX5HU145691
2017 Cadillac CT6
2.0T Luxury RWD
101,663 mi
$15,380
- Year:
- 2017
- 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:
- Black (Charcoal)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 93,144
- Stock #:
- 1506
- VIN:
- 1G6KD5RS6HU205697
2017 Cadillac CT6
3.6L Luxury AWD
93,144 mi
$15,699
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 47,508
- Stock #:
- 19783
- VIN:
- 1G6KE5RS1LU100801
2020 Cadillac CT6
3.6L Premium Luxury AWD
47,508 mi
$41,360
- Year:
- 2020
- 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:
- Black
- Transmission:
- Automatic
- Mileage:
- 162,265
- Stock #:
- 1621
- VIN:
- 1G6KB5RS1LU105425
2020 Cadillac CT6
3.6L Luxury AWD
162,265 mi
$15,999
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Red Passion Tintcoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 155,831
- Stock #:
- F34
- VIN:
- 1G6KG5R63GU153843
2016 Cadillac CT6
3.0TT Premium Luxury AWD
155,831 mi
$11,048
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Stellar Black Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Cinnamon With Jet Black Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 114,911
- Stock #:
- 104040A
- VIN:
- 1G6KF5RS8GU155801
Photos coming soon
2016 Cadillac CT6
3.6L Premium Luxury AWD
114,911 mi
$18,150
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- Automatic
- Mileage:
- 51,300
- Stock #:
- 29112369
- VIN:
- 1G6KN5R63KU129511
2019 Cadillac CT6
3.0TT Sport AWD
51,300 mi
$36,597
- 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:
- Brown (Sahara Beige With Jet Black Accents)
- Transmission:
- Automatic
- Mileage:
- 34,359
- Stock #:
- 141300B
- VIN:
- 1G6KB5RS9KU141300
Photos coming soon
2019 Cadillac CT6
3.6L Luxury AWD
34,359 mi
$30,655
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 | $27,441 | $27,187 – $29,729 |
| 2018 | $23,521 | $22,945 – $24,448 |
| 2017 | $18,547 | $18,547 – $21,879 |
| 2016 | $18,899 | $17,978 – $20,542 |
The Cadillac CT6's current nationwide average price is $21,396, and its nationwide average price reached a low of $21,386 over the past year.
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 choice if you want a luxury sedan with a refined driving experience and broad owner appeal. 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, and spacious interior. Many also highlight its advanced technology and quiet cabin, with the 2019, 2018, and 2016 model years drawing especially positive feedback for style, comfort, and features.
31.0% of listings are priced as good or great deals.
Are Cadillac CT6 models reliable?
Owners consistently praise the CT6 for its smooth ride, strong performance, and upscale feel, and those same themes show up across multiple model years. Expert and owner feedback also points to advanced technology and a spacious cabin as recurring strengths.
- Owners rate the Cadillac CT6 between 4.0 and 4.8 out of 5 stars across all model years in the data.
For used buyers, long-term ownership risk is worth weighing against the CT6's luxury appeal, especially if you want to stay attentive to maintenance and inspection history.
What should I look for when buying a used Cadillac CT6?
Across all model years, at 59.4% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
| Model Year | Accident-Free % |
|---|---|
| 2020 | 58.2% |
| 2019 | 57.1% |
| 2018 | 59.9% |
| 2017 | 59.8% |
| 2016 | 61.6% |
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 | 246 | 30.5% |
| 2018 | 227 | 28.6% |
| 2016 | 159 | 35.8% |
| 2019 | 154 | 26% |
| 2020 | 67 | 32.8% |
These higher-volume years tend to attract more shoppers because they offer more inventory to compare and more chances to find the right combination of price, features, and condition.
What is the Cadillac CT6's resale value?
| Model Year | Current Avg. Price | Year-Over-Year Change |
|---|---|---|
| 2017 | $18,547 | −15.31% |
| 2019 | $27,441 | −7.74% |
| 2018 | $23,521 | −3.4% |
| 2016 | $18,899 | −2.26% |
Most of the model years shown have moved lower over the past year, which can create better entry points for used buyers. The sharpest drop appears in the 2017 model year, while the other years show smaller declines.
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 −7.74% versus a year ago, and the 2018 model is at −3.4%.
- Deal availability: The 2019 model has 26% good and great deals, and the 2018 model has 28.6%.
- Sweet-spot year: The 2017 model has the most listings at a current average price of $18,547.
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 22, 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
- Significant Depreciation: The 2020 Cadillac CT6 shows a steep depreciation of -45.2%, with an average price of $32,335 compared to its original MSRP of $58,995.
- Best Value Year: The 2018 model offers the best value with a current average price of $23,630, reflecting a -56.4% depreciation from its MSRP.
- Older Models at Low Prices: The 2017 and 2016 models are priced at $18,897 and $19,110, respectively, indicating strong depreciation trends for older vehicles.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2020 Cadillac CT6 | $58,995 | $32,335 | -45.2% |
| 2019 Cadillac CT6 | $50,495 | $27,595 | -45.5% |
| 2018 Cadillac CT6 | $54,095 | $23,630 | -56.4% |
| 2017 Cadillac CT6 | $53,795 | $18,897 | -64.9% |
| 2016 Cadillac CT6 | $53,495 | $19,110 | -64.4% |
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Lowest Prices in Miami: The average price in Miami, FL is $18,662, making it the most affordable market for the Cadillac CT6.
- Highest Prices in Philadelphia: Conversely, Philadelphia, PA has the highest average price at $25,764, indicating a premium market for this model.
- Inventory Variation: Cities like Chicago and Dallas have a moderate number of listings (55 and 41, respectively) with average prices around $23,924 and $22,176, suggesting stable demand.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Philadelphia, PA | 42 | $25,764 |
| Chicago, IL | 55 | $23,924 |
| Dallas, TX | 41 | $22,176 |
| Los Angeles, CA | 22 | $21,803 |
| New York, NY | 44 | $21,630 |
| Washington, DC | 43 | $19,826 |
| Atlanta, GA | 41 | $20,203 |
| Houston, TX | 35 | $23,141 |
| Boston, MA | 40 | $24,068 |
| Miami, FL | 28 | $18,662 |
Pricing by Trim Packages
Key Insights
- Most Common Trim: The 3.6L Luxury AWD is the most common trim with 107 listings, priced at $58,995, indicating strong demand for this configuration.
- Premium Trim Pricing: The 3.6L Premium Luxury AWD trim, with an MSRP of $74,495, reflects a significant markup, suggesting buyers are willing to pay for additional luxury features.
- Limited Availability of High-End Trim: The 4.2TT Platinum AWD trim has only 1 listing, priced at $96,495, indicating it is a rare and premium offering in the market.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| 3.6L Luxury AWD | 107 | $58,995 | AWD | 3.6L 335 hp V6 |
| 3.6L Premium Luxury AWD | 86 | $74,495 | AWD | 3.6L 335 hp V6 |
| 4.2TT Platinum AWD | 1 | $96,495 | AWD | 4.2L 500 hp V8 |
These recommendations are based on CarGurus' proprietary market data from September 23, 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.
