Used Cadillac CT6 for Sale near Wisconsin
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
2018 Cadillac CT6
3.0TT Platinum AWD
88,426 mi
$28,799
- Year:
- 2016
- 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:
- 46,065
- Stock #:
- 14022R
- VIN:
- 1G6KK5R63GU151878
2016 Cadillac CT6
3.0TT Platinum AWD
46,065 mi
$29,134
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- Automatic
- Mileage:
- 46,213
- Stock #:
- KU133948
- VIN:
- 1G6KD5RS7KU133948
2019 Cadillac CT6
3.6L Premium Luxury AWD
46,213 mi
$35,758
- 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
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 41,562
- Stock #:
- EYC-140913
- VIN:
- 1G6KB5RS3HU140913
2017 Cadillac CT6
3.6L AWD
41,562 mi
$24,876
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Sahara Beige W/Jet Black Accents)
- Transmission:
- Automatic
- Mileage:
- 62,942
- Stock #:
- 26F108B
- VIN:
- 1G6KE5RS5LU108948
2020 Cadillac CT6
3.6L Premium Luxury AWD
62,942 mi
$37,152
- 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
- Transmission:
- 8-Speed Automatic
- Mileage:
- 108,727
- Stock #:
- NS1655
- VIN:
- 1G6KF5RS3HU171681
2017 Cadillac CT6
3.6L Premium Luxury AWD
108,727 mi
$19,301
- Year:
- 2016
- 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:
- 121,587
- Stock #:
- 79GU165033T1
- VIN:
- 1G6KB5RS1GU165033
2016 Cadillac CT6
3.6L AWD
121,587 mi
$16,373
- Year:
- 2018
- 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:
- 92,669
- Stock #:
- JKB159355
- VIN:
- 1G6KJ5R68JU159355
2018 Cadillac CT6
3.0TT Premium Luxury AWD
92,669 mi
$24,132
- 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:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 46,460
- Stock #:
- LU111997
- VIN:
- 1G6KB5RSXLU111997
2020 Cadillac CT6
3.6L Luxury AWD
46,460 mi
$35,742
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 110,447
- Stock #:
- JYC-107095
- VIN:
- 1G6KB5RS5LU107095
2020 Cadillac CT6
3.6L Luxury AWD
110,447 mi
$24,176
- 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
$19,434
- Year:
- 2017
- 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:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 68,504
- Stock #:
- 183552
- VIN:
- 1G6KE5R60HU183552
2017 Cadillac CT6
3.0TT Luxury AWD
68,504 mi
$25,242
- 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
$20,776
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:
- 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:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 145,499
- Stock #:
- V626055
- VIN:
- 1G6KB5RS7LU111889
2020 Cadillac CT6
3.6L Luxury AWD
145,499 mi
$22,493
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 25,052
- Stock #:
- 26PP-251
- VIN:
- 1G6KG5RS0JU133697
2018 Cadillac CT6
3.6L Premium Luxury AWD
25,052 mi
$35,462
- Year:
- 2020
- 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:
- Brown (Sahara Beige With Jet Black Accents)
- Transmission:
- Automatic
- Mileage:
- 128,832
- Stock #:
- 25296
- VIN:
- 1G6KE5RS1LU104881
2020 Cadillac CT6
3.6L Premium Luxury AWD
128,832 mi
$27,618
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Sahara Beige with Jet Black accents)
- Transmission:
- Automatic
- Mileage:
- 86,415
- Stock #:
- 28607C
- VIN:
- 1G6KE5RS4LU102705
2020 Cadillac CT6
3.6L Premium Luxury AWD
86,415 mi
$31,724
- 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:
- 106,822
- Stock #:
- D1995
- VIN:
- 1G6KD5RS3JU115462
2018 Cadillac CT6
3.6L Luxury AWD
106,822 mi
$20,050
- Year:
- 2018
- 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:
- 8-Speed Automatic
- Mileage:
- 110,328
- VIN:
- 1G6KH5R64JU139342
2018 Cadillac CT6
3.0TT Premium Luxury AWD
110,328 mi
$20,724
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 265 hp 2L I4
- Exterior color:
- Black
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Transmission:
- 8-Speed Automatic
- Mileage:
- 63,763
- Stock #:
- U165945
- VIN:
- 1G6KA5RX2GU165945
2016 Cadillac CT6
2.0T RWD
63,763 mi
$19,398
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (TAN)
- Transmission:
- Automatic
- Mileage:
- 52,826
- Stock #:
- 70274042
- VIN:
- 1G6KT5R65KU143495
2019 Cadillac CT6
3.0TT Platinum AWD
52,826 mi
$40,097
- 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
$41,533
- 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:
- 147,549
- Stock #:
- 117457
- VIN:
- 1G6KB5RSXKU117457
2019 Cadillac CT6
3.6L Luxury AWD
147,549 mi
$19,411
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.
