Skip to main content
Skip to Filters
47 listings
  • Stock photo**
    $24,995
    fair price
    $169 below market
    • 93,035 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • CarNeeD (29 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Northbrook, IL / 29 miles away from Naperville, IL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KG5RS5JU151984
    Stock: ND2904
    Certified Pre-Owned: No
    Listed since: 09-11-2025

  • $26,990
    fair price
    $803 below market
    • 74,519 miles
    • 1 accident, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Oklahoma City, OK / 667 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KG5RS3JU134472
    Stock: 2003915518
    Certified Pre-Owned: No
    Listed since: 07-25-2025

    • 52,138 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Dallas, TX / 780 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KH5R68JU100611
    Stock: 2003984125
    Certified Pre-Owned: No
    Listed since: 09-02-2025

  • Price Drop
    $35,590
    fair price
    $528 above market
    • 53,286 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Cincinnati, OH / 266 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KP5R63JU120493
    Stock: 2004047991
    Certified Pre-Owned: No
    Listed since: 09-12-2025

  • New Listing
    $34,590
    fair price
    $485 below market
    • 52,910 miles
    • 2 accidents, 2 owners, corporate fleet vehicle
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tampa, FL / 1,008 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KP5R63JU134748
    Stock: 2003879439
    Certified Pre-Owned: No
    Listed since: 08-18-2025

    • 45,963 miles
    • No accidents, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Phoenix, AZ / 1,420 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KD5RS9JU125719
    Stock: 2003810549
    Certified Pre-Owned: No
    Listed since: 07-02-2025

    • 49,129 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • Reina International Auto (90 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Brookfield, WI / 90 miles away from Naperville, IL

    2016 Cadillac CT6 3.6L Luxury AWD, Crystal White Tricoat on Light PLatinum w/Jet Black Accents, Clean Carfax, Only 49K Miles!! 2 Keys & Books, Enhance...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    22 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KD5RS6GU163451
    Stock: 63451
    Certified Pre-Owned: No
    Listed since: 09-10-2025

  • $15,995
    good price
    $1,139 below market
    • 118,262 miles
    • 1 accident, 3 owners, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • Frankfort Car Outlet (25 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Frankfort, IL / 25 miles away from Naperville, IL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    22 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KB5RS0GU166576
    Stock: 12729
    Certified Pre-Owned: No

  • New Listing
    • 34,885 miles
    • 2 accidents, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Patrick Volvo Cars (18 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Schaumburg, IL / 18 miles away from Naperville, IL

    on this vehicle:DESIRABLE FEATURES: This used 2018 Cadillac CT6 3.6L Luxury features: Android Auto, Apple CarPlay, Navigation, Heated Seats, Bluetooth...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KD5RS1JU111085
    Stock: P7752A
    Certified Pre-Owned: No
    Listed since: 09-17-2025

  • Stock photo**
    $20,500
    great price
    $3,320 below market
    • 81,440 miles
    • No accidents, 3 owners, personal use
    • 18 City / 26 Hwy MPG
    • Woody Buick GMC (2 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Naperville, IL / 2 miles away from Naperville, IL

    2017 Cadillac CT6 3.0L Twin Turbo Premium Luxury Radiant Silver Metallic Backup Camera, Android Auto, Apple CarPlay, Bluetooth, CT6 3.0L Twin Turbo Pr...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KH5R64HU172402
    Stock: G14252B
    Certified Pre-Owned: No
    Listed since: 08-28-2025

  • New Listing
    • 67,646 miles
    • 18 City / 27 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from MD to IL*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Laurel, MD / 622 miles away from Naperville, IL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KM5RS9JU153682
    Stock: 27524393
    Certified Pre-Owned: No

  • $22,695
    fair price
    $117 above market
    • 90,974 miles
    • No accidents, 4 owners, personal use
    • 18 City / 26 Hwy MPG
    • CarZone Auto Sales (57 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Kenosha, WI / 57 miles away from Naperville, IL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KK5R66GU163572
    Stock: 691
    Certified Pre-Owned: No

  • $19,990
    good price
    $2,103 below market
    • 100,040 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Indianapolis, IN / 173 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KF5RS2HU187273
    Stock: 2003941314
    Certified Pre-Owned: No
    Listed since: 08-04-2025

  • Price Drop
    $22,590
    fair price
    $1,134 above market
    • 78,730 miles
    • No accidents, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Las Vegas, NV / 1,495 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KD5RS2HU125975
    Stock: 2003782832
    Certified Pre-Owned: No
    Listed since: 06-06-2025

  • New Listing
    $25,990
    fair price
    $1,145 above market
    • 45,237 miles
    • No accidents, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Richmond, VA / 627 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KD5RSXHU202804
    Stock: 2003927406
    Certified Pre-Owned: No
    Listed since: 07-25-2025

  • New Listing
    $23,998
    fair price
    $1,758 above market
    • 72,119 miles
    • No accidents, 3 owners, personal use
    • 18 City / 27 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from GA to IL*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Kennesaw, GA / 572 miles away from Naperville, IL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KD5RS1HU182233
    Stock: 27874079
    Certified Pre-Owned: No

    • 68,933 miles
    • No accidents, 2 owners, personal use only
    • 22 City / 30 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Atlanta, GA / 588 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: Yes

    Features and Specs:

    25 Combined MPG (22 City/30 Highway)

    Listing Information:

    VIN: 1G6KC5RX8HU135019
    Stock: 2003941727
    Certified Pre-Owned: No
    Listed since: 07-30-2025

    • 80,261 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 26 Hwy MPG
    • Marengo Auto Group (40 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Marengo, IL / 40 miles away from Naperville, IL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KE5R69HU185719
    Stock: 6933
    Certified Pre-Owned: No
    Listed since: 08-27-2025

    • 88,925 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Crest Cadillac (90 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Brookfield, WI / 90 miles away from Naperville, IL

    2017 Cadillac CT6 3.0L Twin Turbo Luxury 18/26 City/Highway MPG The Crest Cadillac Staff is proud to offer first rate reconditioning on all our used v...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KE5R60HU187164
    Stock: GMF514A
    Certified Pre-Owned: No
    Listed since: 07-02-2025

    • 76,873 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Farmington Hills, MI / 247 miles away from Naperville, IL

    Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Cooled Seats,Heated Seats,Heated Steering Wheel,Keyless Start,Lane Keeping Assist,...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KN5R62HU190535
    Stock: HU190535P
    Certified Pre-Owned: No

  • New Listing
    • 121,150 miles
    • 22 City / 30 Hwy MPG
    • Chicago Motor Credit (30 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in South Holland, IL / 30 miles away from Naperville, IL

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    25 Combined MPG (22 City/30 Highway)

    Listing Information:

    VIN: 1G6KA5RX8HU206533
    Stock: 206533
    Certified Pre-Owned: No
    Listed since: 08-21-2025

Showing 22 - 42 out of 47 listings

Consumer Reviews for the Cadillac CT6

Read recent reviews for the Cadillac CT6
Overall Consumer Rating
4.2 out of 5 stars55 Reviews
Write a vehicle reviewSee all 55 reviews
  • 5 star
    (58%)
  • 4 star
    (18%)
  • 3 star
    (11%)
  • 2 star
    (11%)
  • 1 star
    (2%)
5 out of 5 stars

Fantastic voyage

Deborah, 04/14/2018
2018 Cadillac CT6 PLUG-IN 4dr Sedan (2.0L 4cyl Turbo gas/electric hybrid EVT)
I absolutely love this car. I have owned 6 cars and 3 SUV's and the CT6 hybrid is by far the best. The ride is incredible. The ride is so smooth it feels as though you are floating. The seats hug you as you drive and it feels as though they were made just to fit your body. The technology in this car is amazing and surprisingly easy to navigate.
Report abuse

Used 2018 Cadillac CT6 in Naperville, IL Values

Estimated values
2018 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.6L 6cyl 8A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$20,294$24,315$27,638
Clean$19,630$23,494$26,676
Average$18,524$22,125$25,072
Rough$17,085$20,346$22,986

The average list price of a used 2018 Cadillac CT6 in Naperville, Illinois is $24,869. The average mileage on a used Cadillac CT6 2018 for sale in Naperville, Illinois is 73,641. Based on the average mileage of 73,641 for used 2018 Cadillac CT6 for sale in Naperville, IL and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used Cadillac CT6 2018 in Naperville, Illinois to be $18,524.

Filters
Skip to Results

Applied Filters4Active

Select Buying Experience

Location

Search radius100 miles
Search radius

Make & Model

Year

New / Used

Price & Payments

Price Rating

Trim

Mileage

Accidents & History

EV Details

Engine & Drivetrain

Exterior Color

Interior Color

Total Seating

Edmunds Review

Features

Options & Packages

MPG

Listing Details


* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.