Used Cadillac CT6 for Sale nearJanesville, WI
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:
- 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
Sponsored by Your Choice Autos - Joliet
2018 Cadillac CT6
3.6L Luxury AWD
95,704 mi
$21,176
- Year:
- 2017
- 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:
- 120,184
- Stock #:
- 8498
- VIN:
- 1G6KD5RS4HU205794
Sponsored Listing
2017 Cadillac CT6
3.6L Luxury AWD
120,184 mi
$16,183
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Light Platinum W/Jet Blac)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 81,018
- Stock #:
- P1003
- VIN:
- 1G6KG5R61GU166073
Sponsored Listing
2016 Cadillac CT6
3.0TT Premium Luxury AWD
81,018 mi
$23,353
- 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:
- 75,350
- Stock #:
- GX5676
- VIN:
- 1G6KB5RS9LU111652
-$2,143
2020 Cadillac CT6
3.6L Luxury AWD
75,350 mi
$28,937
$26,794
- Year:
- 2020
- 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:
- Brown (Sahara Beige with Jet Black accents)
- Transmission:
- Automatic
- Mileage:
- 18,092
- Stock #:
- AS20182
- VIN:
- 1G6KB5RS9LU101025
2020 Cadillac CT6
3.6L Luxury AWD
18,092 mi
$39,389
- 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:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 83,869
- Stock #:
- G867
- VIN:
- 1G6KF5RS8GU159489
2016 Cadillac CT6
3.6L Premium Luxury AWD
83,869 mi
$18,962
- 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:
- Automatic
- Mileage:
- 66,601
- Stock #:
- AS20210
- VIN:
- 1G6KH5R66JU100834
2018 Cadillac CT6
3.0TT Premium Luxury AWD
66,601 mi
$27,389
- 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
$31,852
- Year:
- 2016
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Moonstone Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Light Platinum With Jet Black Accents)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 89,473
- Stock #:
- C2119A
- VIN:
- 1G6KE5R68GU164990
2016 Cadillac CT6
3.0TT Luxury AWD
89,473 mi
$19,359
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Light Platinum W/Jet Blac)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 81,018
- Stock #:
- P1003
- VIN:
- 1G6KG5R61GU166073
2016 Cadillac CT6
3.0TT Premium Luxury AWD
81,018 mi
$23,353
- 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
$25,376
- 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 (gba)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Auburn W/Jet Black Accents (htx)
- Transmission:
- Automatic
- Mileage:
- 74,019
- Stock #:
- 100267
- VIN:
- 1G6KE5RS7LU100267
2020 Cadillac CT6
3.6L Premium Luxury AWD
74,019 mi
$36,086
- 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:
- Automatic
- Mileage:
- 92,669
- Stock #:
- JU159355
- VIN:
- 1G6KJ5R68JU159355
2018 Cadillac CT6
3.0TT Premium Luxury AWD
92,669 mi
$24,295
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:
- 2017
- 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:
- 111,013
- Stock #:
- HU149543
- VIN:
- 1G6KE5R65HU149543
2017 Cadillac CT6
3.0TT Luxury AWD
111,013 mi
$17,295
- 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
$24,449
- 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:
- Light Neutral with Jet Black Accents
- Transmission:
- Automatic
- Mileage:
- 66,211
- Stock #:
- YO-3625
- VIN:
- 1G6KB5RSXHU182298
2017 Cadillac CT6
3.6L AWD
66,211 mi
$20,338
- Year:
- 2016
- 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:
- 139,280
- Stock #:
- GU154143
- VIN:
- 1G6KK5R64GU154143
2016 Cadillac CT6
3.0TT Platinum AWD
139,280 mi
$19,278
- 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
$19,420
- 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
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 71,438
- Stock #:
- HA00782
- VIN:
- 1G6KD5RS1JU100782
2018 Cadillac CT6
3.6L Luxury AWD
71,438 mi
$23,910
- 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
$20,457
- 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
$21,176
- 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
$19,934
- 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
Sponsored Listing
2017 Cadillac CT6
3.6L AWD
41,562 mi
$25,376
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 | $27,835 | $27,204 – $30,170 |
| 2018 | $23,504 | $22,949 – $24,844 |
| 2017 | $18,848 | $18,848 – $21,889 |
| 2016 | $18,766 | $17,986 – $20,545 |
The Cadillac CT6's current nationwide average price is $21,737, and that average reached a low of $21,737 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 earns strong marks from owners 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, and powerful performance. They also frequently highlight its advanced technology and spacious interior, with many reviews pointing to an enjoyable driving experience overall.
29.8% 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 cabin experience. Reviews also point to advanced technology and a spacious interior as recurring strengths across the model years.
- 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 shaped by maintenance costs and the condition of individual vehicles, so a careful pre-purchase inspection and service-history review are especially worthwhile.
What should I look for when buying a used Cadillac CT6?
Across all model years, at 62.3% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
| Model Year | Accident-Free % |
|---|---|
| 2020 | 61.1% |
| 2019 | 61.8% |
| 2018 | 63% |
| 2017 | 62.7% |
| 2016 | 63% |
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 | 260 | 29.6% |
| 2018 | 243 | 29.6% |
| 2019 | 170 | 28.8% |
| 2016 | 162 | 30.9% |
| 2020 | 72 | 30.6% |
Higher-volume model years usually give you more shopping choices, which can make it easier to compare prices, mileage, and equipment. They also tend to be the years most shoppers cross-shop first.
What is the Cadillac CT6's resale value?
| Model Year | Current Avg. Price | Year-Over-Year Change |
|---|---|---|
| 2017 | $18,848 | −13.72% |
| 2019 | $27,835 | −8.16% |
| 2018 | $23,504 | −5.49% |
| 2016 | $18,766 | −3.01% |
Most of the model years shown have moved lower over the past year, which can create better buying opportunities for used shoppers. The largest drop is a double-digit decline, while the other years show smaller downward moves.
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 −8.16% versus a year ago, and the 2018 model is at −5.49%.
- Deal availability: The 2019 model has 28.8% good and great deals, and the 2018 model has 29.6%.
- Sweet-spot year: The 2017 model has the most listings at a current average price of $18,848.
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 11, 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 41.6%, with an average price of $34,651 compared to its original MSRP of $58,995.
- Best Value Year: The 2018 model offers the best value with a current average price of $23,499, reflecting a 56.6% depreciation from its MSRP.
- Older Models at Low Prices: The 2016 Cadillac CT6 is priced at $18,493, indicating a 65.5% drop from its original MSRP, highlighting the rapid depreciation of luxury vehicles.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2020 Cadillac CT6 | $58,995 | $34,651 | -41.6% |
| 2019 Cadillac CT6 | $50,495 | $27,254 | -46.0% |
| 2018 Cadillac CT6 | $54,095 | $23,499 | -56.6% |
| 2017 Cadillac CT6 | $53,795 | $18,897 | -65.0% |
| 2016 Cadillac CT6 | $53,495 | $18,493 | -65.5% |
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Philadelphia: The average price in Philadelphia, PA ($26,784) is the highest among the listed cities, likely due to higher demand in urban areas.
- Lowest Prices in Miami: Miami, FL offers the lowest average price at $19,982, indicating a more price-sensitive market or higher inventory turnover.
- Price Variation Across Cities: There is a notable price variation, with Los Angeles, CA ($26,951) and Chicago, IL ($24,501) also showing higher average prices, suggesting regional demand differences.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Philadelphia, PA | 49 | $26,784 |
| Los Angeles, CA | 26 | $26,951 |
| Chicago, IL | 54 | $24,501 |
| Dallas, TX | 47 | $22,441 |
| Houston, TX | 46 | $24,466 |
| Atlanta, GA | 46 | $23,042 |
| Boston, MA | 44 | $23,947 |
| Washington, DC | 52 | $20,054 |
| New York, NY | 52 | $21,142 |
| Miami, FL | 31 | $19,982 |
Pricing by Trim Packages
Key Insights
- Most Common Trim: The 3.6L Luxury AWD is the most common trim with 115 listings, indicating strong demand for this configuration.
- Premium Pricing for Higher Trims: The 3.6L Premium Luxury AWD has a significantly higher MSRP of $74,495, reflecting the added luxury features and technology.
- Limited Availability of High-End Trim: The 4.2TT Platinum AWD has only 1 listing, suggesting it is a rare find in the market, likely due to its high price point of $96,495.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| 3.6L Luxury AWD | 115 | $58,995 | AWD | 3.6L 335 hp V6 |
| 3.6L Premium Luxury AWD | 91 | $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 10, 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.
