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92 listings
  • New Listing
    Stock photo**
    $34,126
    good price
    $2,116 below market
    • 38,444 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Thompson Buick GMC (473 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Springfield, MO / 473 miles away from Sioux Falls, SD

    SAVE THOUSANDS WITH INTERNET VALUE PRICING! ONLY AT THOMPSON'S IN SPRINGFIELD! #1 BUICK GMC PREOWNED CERTIFIED DEALER IN SW MISSOURI!!, SPRINGFIELD AR...

    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: 1G6KP5R60KU139858
    Stock: M12944B
    Certified Pre-Owned: No
    Listed since: 08-28-2025

  • Price Drop
    $29,686
    good price
    $1,814 below market
    • 39,881 miles
    • No accidents, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Green Hyundai (444 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Springfield, IL / 444 miles away from Sioux Falls, SD

    2019 Cadillac CT6 3.6L Premium Luxury 4D Sedan AWD 10-Speed Automatic 3.6L V6 SIDI DOHC VVT Crystal White TricoatPriced below KBB Fair Purchase Price!...

    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: 1G6KD5RS5KU133561
    Stock: G60510B
    Certified Pre-Owned: No
    Listed since: 08-23-2025

  • New Listing
    Stock photo**
    $36,600
    fair price
    $1,362 above market
    • 59,507 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 26 Hwy MPG
    • BMW of Barrington (443 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Barrington, IL / 443 miles away from Sioux Falls, SD

    Red Horizon Tintcoat 2019 Cadillac CT6 3.0L Twin Turbo Platinum Active Rear Steering, Adaptive suspension, Apple CarPlay/Android Auto, Auto High-beam ...

    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: 1G6KT5R6XKU143668
    Stock: 158175BA
    Certified Pre-Owned: No
    Listed since: 08-27-2025

  • Price Drop
    Stock photo**
    • 20,194 miles
    • No accidents, 1 owner, personal use only
    • 14 City / 25 Hwy MPG
    • Audi Flatirons (499 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Broomfield, CO / 499 miles away from Sioux Falls, SD

    Very rare 4.2L CT6 with twin turbo and tones of room!!All Wheel Drive!!, CARFAX 1-Owner, Clean CARFAX, Dealer Inspected.Audi Flatirons is proud to off...

    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:

    17 Combined MPG (14 City/25 Highway)

    Listing Information:

    VIN: 1G6KV5RJ7KU145876
    Stock: KU145876
    Certified Pre-Owned: No
    Listed since: 07-02-2025

    • 98,583 miles
    • No accidents, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • I-80 Auto Sales (476 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hazel Crest, IL / 476 miles away from Sioux Falls, SD

    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: 1G6KB5RS5KU142329
    Stock: 142329
    Certified Pre-Owned: No

    • 91,531 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 18 City / 26 Hwy MPG
    • Booth Motors (487 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Longmont, CO / 487 miles away from Sioux Falls, SD

    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/26 Highway)

    Listing Information:

    VIN: 1G6KN5R6XKU133619
    Stock: 16919
    Certified Pre-Owned: No

  • Price Drop
    $38,995
    good price
    $1,877 below market
    • 30,020 miles
    • No accidents, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Laura Buick GMC (479 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Collinsville, IL / 479 miles away from Sioux Falls, SD

    Premium Luxury 3.6 V6 AWD. Navigation System, Panoramic Sunroof, 20' Wheels, Backup Camera, Backup Sensors, Heated Seats, Cooled Seats, Leather Seats,...

    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: 1G6KE5RS6LU108439
    Stock: P10101
    Certified Pre-Owned: No
    Listed since: 06-10-2025

  • New Listing
    $29,998
    fair price
    $1,417 below market
    • 58,308 miles
    • No accidents, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • CarMax Hillside (Eisenhower Expy) (460 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Hillside, IL / 460 miles away from Sioux Falls, SD

    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: 1G6KG5RS0JU114390
    Stock: 26863781
    Certified Pre-Owned: No

  • $29,899
    fair price
    $38 below market
    • 59,217 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Napleton Buick GMC Crystal Lake (432 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Crystal Lake, IL / 432 miles away from Sioux Falls, SD

    The Napleton Auto Group promotes a no pressure buying experience that puts the customer in charge of the buying process, and for over 80 years, the Na...

    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: 1G6KH5R62JU104881
    Stock: 125141AA
    Certified Pre-Owned: No
    Listed since: 08-14-2025

  • Stock photo**
    $36,995
    fair price
    $1,527 below market
    • 35,426 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 26 Hwy MPG
    • Schepel Cadillac (494 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Merrillville, IN / 494 miles away from Sioux Falls, SD

    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: 1G6KP5R67JU116964
    Stock: 25989
    Certified Pre-Owned: No
    Listed since: 08-21-2025

    • 55,962 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 31 mi est. electric range
    • 23 City / 29 Hwy MPG
    • Wilson Toyota (186 mi away)
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Ames, IA / 186 miles away from Sioux Falls, SD

    Local Car, **ALLOY WHEELS**, **WILSON WARRANTY**, **PROFESSIONALLY DETAILED**, **BACKUP CAMERA**, **BLUETOOTH**. Clean CARFAX. Stellar Black Metallic ...

    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:

    25 Combined MPG (23 City/29 Highway)

    Listing Information:

    VIN: LREKK5RX6JA011579
    Stock: 24595B
    Certified Pre-Owned: No
    Listed since: 01-02-2025

    • 38,513 miles
    • No accidents, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Reina International Auto (434 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Brookfield, WI / 434 miles away from Sioux Falls, SD

    2020 Cadillac CT6 3.6L Premium Luxury AWD, Stellar Black Metallic on Jet Black Leather, Clean Carfax, 2 Owner, Only 38K Miles!!! Car is Loaded!! Over...

    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: 1G6KE5RSXLU103566
    Stock: 3566C
    Certified Pre-Owned: No
    Listed since: 08-05-2025

    • 47,334 miles
    • Insurance loss reported, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Unisell Auto (164 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Bellevue, NE / 164 miles away from Sioux Falls, SD

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Issue reported

    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: 1G6KB5RS9JU100454
    Stock: 100454
    Certified Pre-Owned: No

  • Price Drop
    $24,190
    fair price
    $11 below market
    • 62,150 miles
    • No accidents, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Zeigler Cadillac of Lincolnwood (465 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Lincolnwood, IL / 465 miles away from Sioux Falls, SD

    2017 CADILLAC CT6 PREMIUM AWD BLACK RAVEN / JET BLACK LEATHER At Zeigler Cadillac of Lincolnwood, we know Chicagoland drivers want a luxury sedan t...

    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: 1G6KF5RS7HU207422
    Stock: C24145B
    Certified Pre-Owned: No
    Listed since: 08-14-2025

  • New Listing
    • 13,970 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Dallas, TX / 738 miles away from Sioux Falls, SD

    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: 1G6KB5RS6KU142257
    Stock: 2003992131
    Certified Pre-Owned: No
    Listed since: 08-19-2025

  • Stock photo**
    $31,997
    fair price
    $1,299 below market
    • 44,901 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Amery Chevrolet (248 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Amery, WI / 248 miles away from Sioux Falls, SD

    CT6 Sport AWD

    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: 1G6KN5R6XKU143423
    Stock: 100865
    Certified Pre-Owned: No
    Listed since: 08-14-2025

  • $32,995
    fair price
    $452 below market
    • 38,553 miles
    • No accidents, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Illinois Auto Wholesalers (496 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tolono, IL / 496 miles away from Sioux Falls, SD

    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: 1G6KB5RS9KU141992
    Stock: 141992
    Certified Pre-Owned: No
    Listed since: 03-12-2025

  • New Listing
    • 23,466 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 26 Hwy MPG
    • Lockwood Cadillac (81 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Marshall, MN / 81 miles away from Sioux Falls, SD

    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: 1G6KT5R67KU124477
    Stock: 29293
    Certified Pre-Owned: No
    Listed since: 08-28-2025

  • Price Drop
    $30,990
    great price
    $3,709 below market
    • 47,728 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tampa, FL / 1,333 miles away from Sioux Falls, SD

    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: 1G6KG5RS7JU152375
    Stock: 2003876776
    Certified Pre-Owned: No
    Listed since: 07-10-2025

  • New Listing
    • 68,466 miles
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Dallas, TX / 738 miles away from Sioux Falls, SD

    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 Unavailable.

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KB5RS5KU131024
    Stock: 2003992205
    Certified Pre-Owned: No
    Listed since: 08-30-2025

    • 80,590 miles
    • Salvage reported, 1 owner, personal use only
    • 18 City / 27 Hwy MPG
    • Unisell Auto (164 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Bellevue, NE / 164 miles away from Sioux Falls, SD

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Issue reported

    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: 1G6KD5RS8HU164781
    Stock: 164781
    Certified Pre-Owned: No

Showing 1 - 21 out of 92 listings

Consumer Reviews for the Cadillac CT6

Read recent reviews for the Cadillac CT6
Overall Consumer Rating
4.1 out of 5 stars50 Reviews
Write a vehicle reviewSee all 50 reviews
  • 5 star
    (56%)
  • 4 star
    (18%)
  • 3 star
    (12%)
  • 2 star
    (12%)
  • 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.
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Used 2019 Cadillac CT6 in Sioux Falls, SD Values

Estimated values
2019 Cadillac CT6 Sport 4dr Sedan AWD (3.0L 6cyl Turbo 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$28,333$32,016$35,315
Clean$27,514$31,055$34,216
Average$26,149$29,453$32,384
Rough$24,374$27,371$30,002

The average list price of a used 2019 Cadillac CT6 in Sioux Falls, South Dakota is $33,585. The average mileage on a used Cadillac CT6 2019 for sale in Sioux Falls, South Dakota is 50,131. Based on the average mileage of 50,131 for used 2019 Cadillac CT6 for sale in Sioux Falls, SD 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 2019 in Sioux Falls, South Dakota to be $26,149.

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