Used Cadillac CT6 for SaleNationwide
Shop with transparent pricing.
Only show listings that include dealer fees- 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:
- 102,102
- Stock #:
- LU110397
- VIN:
- 1G6KE5RS4LU110397
2020 Cadillac CT6
3.6L Premium Luxury AWD
102,102 mi
$28,703
- 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:
- 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
$27,852
- 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
- Transmission:
- Automatic
- Mileage:
- 133,162
- Stock #:
- 151757
- VIN:
- 1G6KD5RS3GU151757
2016 Cadillac CT6
3.6L Luxury AWD
133,162 mi
$13,491
- Year:
- 2019
- 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:
- Dark Auburn
- Transmission:
- Automatic
- Mileage:
- 117,042
- Stock #:
- E125854
- VIN:
- 1G6KP5R6XKU125854
2019 Cadillac CT6
3.0TT Sport AWD
117,042 mi
$26,250
- Year:
- 2019
- 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:
- Automatic
- Mileage:
- 34,172
- Stock #:
- 17943
- VIN:
- 1G6KN5R61KU133573
2019 Cadillac CT6
3.0TT Sport AWD
34,172 mi
$35,593
- 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:
- 2018
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Bronze
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Light Platinum W/Jet Black Acc)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 32,505
- Stock #:
- LN1473A
- VIN:
- 1G6KD5RS3JU158148
2018 Cadillac CT6
3.6L Luxury AWD
32,505 mi
$31,216
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 142,458
- Stock #:
- 199107
- VIN:
- 1G6KD5RS4HU199107
2017 Cadillac CT6
3.6L Luxury AWD
142,458 mi
$16,125
- 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
- Interior color:
- Brown (Beige)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 96,308
- Stock #:
- Pa308
- VIN:
- 1G6KD5RS7HU132971
2017 Cadillac CT6
3.6L Luxury AWD
96,308 mi
$18,909
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Manhattan Noir Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 79,124
- Stock #:
- 135542
- VIN:
- 1G6KD5RS6KU140664
2019 Cadillac CT6
3.6L Premium Luxury AWD
79,124 mi
$28,438
- 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
- Interior color:
- Gray
- Transmission:
- 8-Speed Automatic
- Mileage:
- 123,560
- Stock #:
- U199931
- VIN:
- 1G6KD5RS0HU199931
2017 Cadillac CT6
3.6L Luxury AWD
123,560 mi
$16,348
- Year:
- 2016
- 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:
- Very Light Cashmere With Maple Sugar Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 44,325
- Stock #:
- GU166148
- VIN:
- 1G6KJ5RS8GU166148
2016 Cadillac CT6
3.6L Platinum AWD
44,325 mi
$29,213
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:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 35,558
- Stock #:
- U152979
- VIN:
- 1G6KG5RS6JU152979
2018 Cadillac CT6
3.6L Premium Luxury AWD
35,558 mi
$31,987
- 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:
- 39,139
- Stock #:
- P260606A
- VIN:
- 1G6KF5RS9GU164992
2016 Cadillac CT6
3.6L Premium Luxury AWD
39,139 mi
$26,624
- Year:
- 2017
- 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:
- Brown (Beige)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 110,643
- Stock #:
- GM204408
- VIN:
- 1G6KD5RS1HU204408
2017 Cadillac CT6
3.6L Luxury AWD
110,643 mi
$15,889
- Year:
- 2016
- 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:
- Gray (Light Platinum With Jet Black Accents)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 95,779
- Stock #:
- 144586
- VIN:
- 1G6KG5R68GU144586
2016 Cadillac CT6
3.0TT Premium Luxury AWD
95,779 mi
$17,201
- 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:
- Automatic
- Mileage:
- 87,726
- Stock #:
- 3559
- VIN:
- 1G6KD5RS4HU172229
2017 Cadillac CT6
3.6L Luxury AWD
87,726 mi
$21,193
- 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:
- 104,969
- Stock #:
- 3960
- VIN:
- 1G6KB5RS4KU115011
2019 Cadillac CT6
3.6L Luxury AWD
104,969 mi
$20,882
- 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:
- 78,483
- Stock #:
- 142386
- VIN:
- 1G6KH5R63HD142386
2017 Cadillac CT6
3.0TT Platinum AWD
78,483 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
-$1,090
2018 Cadillac CT6
3.6L Premium Luxury AWD
66,694 mi
$26,416
$25,326
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 144,333
- Stock #:
- 52463
- VIN:
- 1G6KF5RSXGU152463
2016 Cadillac CT6
3.6L Premium Luxury AWD
144,333 mi
$15,494
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 142,900
- Stock #:
- 153942
- VIN:
- 1G6KD5RS8GU153942
2016 Cadillac CT6
3.6L Luxury AWD
142,900 mi
$14,593
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 | $28,017 | $27,199 – $29,241 |
| 2018 | $23,194 | $22,957 – $24,402 |
| 2017 | $18,148 | $18,148 – $21,591 |
| 2016 | $18,879 | $17,968 – $20,551 |
The Cadillac CT6's current nationwide average price is $21,248, and its lowest point over the past year was $21,248. 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 earns strong owner feedback across its model years. 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 reviewers also highlight the quiet cabin and stylish design as standout strengths.
28.0% 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 cabin, while expert and owner feedback also points to advanced technology and a refined driving experience. Across the model years, the CT6 draws especially positive comments for its luxury feel and spaciousness.
- 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 premium features, since maintenance costs and some recurring technology or transmission concerns appear in owner feedback.
What should I look for when buying a used Cadillac CT6?
Across all model years, at 58.1% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
| Model Year | Accident-Free % |
|---|---|
| 2020 | 61.8% |
| 2019 | 57.5% |
| 2018 | 57.1% |
| 2017 | 56.8% |
| 2016 | 58.8% |
What Cadillac CT6 do most buyers choose?
The Cadillac CT6 years with the most listings are 2017, 2018, and 2019.
| Model Year | Total Listings | Good + Great Deals % |
|---|---|---|
| 2017 | 250 | 28.8% |
| 2018 | 238 | 29% |
| 2019 | 174 | 27% |
| 2016 | 165 | 29.1% |
| 2020 | 89 | 25.8% |
These higher-volume years tend to attract more shoppers because they offer more inventory to compare and more chances to find a well-priced example. They also give you a broader selection of trims, mileage levels, and condition profiles.
What is the Cadillac CT6's resale value?
| Model Year | Current Avg. Price | Year-Over-Year Change |
|---|---|---|
| 2017 | $18,148 | −16.04% |
| 2018 | $23,194 | −4.97% |
| 2016 | $18,879 | −3.78% |
| 2019 | $28,017 | −1.29% |
The table shows broad downward movement across the CT6 lineup, with every listed year posting a negative year-over-year change. That pattern can work in your favor if you're shopping used, since recent prices have softened across multiple model years. The largest drop is especially pronounced, while the smaller declines suggest some years have moved more gradually.
The 2019, 2016, and 2018 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 −1.29% versus a year ago, and the 2018 model is at −4.97%.
- Deal availability: The 2019 model has 27% good and great deals, and the 2018 model has 29%.
- Sweet-spot year: The 2017 model has the most listings at a current average price of $18,148.
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 October 6, 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
- New-Car Premium: The 2020 model year shows an average price of $34,535, indicating a significant drop from its starting MSRP of $58,995.
- Steepest Depreciation: The 2017 model year has experienced the steepest depreciation at -65.8%, reflecting a rapid decline in value.
- Years Priced Above Starting MSRP: No model years are priced above their starting MSRP, highlighting a consistent trend of depreciation across all years.
Model Year Pricing
| Model Year | Starting MSRP | Avg Price | Avg Price vs Starting MSRP |
|---|---|---|---|
| 2020 | $58,995 | $34,535 | -41.5% |
| 2019 | $50,495 | $28,821 | -42.9% |
| 2018 | $54,095 | $23,485 | -56.6% |
| 2017 | $53,795 | $18,375 | -65.8% |
| 2016 | $53,495 | $18,914 | -64.6% |
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest-Price Market: The highest average price is found in Chicago, IL, at $26,737, indicating strong demand in this market.
- Best Value: The lowest average price is in Houston, TX, at $19,228, suggesting a more favorable buying environment for shoppers in this city.
- Inventory Drives Stability: Chicago, IL also has the most listings at 57, which may contribute to its higher average price due to increased competition.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Chicago, IL | 57 | $26,737 |
| New York, NY | 54 | $24,278 |
| Washington, DC | 50 | $22,286 |
| Atlanta, GA | 49 | $24,161 |
| Philadelphia, PA | 48 | $25,912 |
| Dallas, TX | 47 | $20,661 |
| Boston, MA | 45 | $24,230 |
| Houston, TX | 39 | $19,228 |
| Miami, FL | 34 | $22,397 |
| Los Angeles, CA | 26 | $21,625 |
Pricing by Trim Packages
Key Insights
- Volume Leader: The 3.6L Luxury AWD trim leads with 128 listings, indicating it is the most popular choice among buyers.
- 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 inventory levels.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| 3.6L Luxury AWD | 128 | $58,995 | AWD | 3.6L 335 hp V6 |
| 3.6L Premium Luxury AWD | 88 | $74,495 | AWD | 3.6L 335 hp V6 |
| 4.2TT Platinum AWD | 4 | $96,495 | AWD | 4.2L 500 hp V8 |
These recommendations are based on CarGurus' proprietary market data from October 7, 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.
