Skip to main content
Skip to Filters
94 listings
  • $40,995
    fair price
    $678 above market
    • 30,020 miles
    • No accidents, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Laura Buick GMC (489 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Collinsville, IL / 489 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

  • Price Drop
    $41,000
    fair price
    $1,383 above market
    • 32,744 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Gregg Young Buick/GMC (225 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Indianola, IA / 225 miles away from Sioux Falls, SD

    Make a bold statement with our **No Accidents Reported**2020** Cadillac** CT6** Premium** Luxury** AWD** Sedan**Heated/Ventilated Seats**Heated Rear S...

    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: 1G6KE5RS9LU110587
    Stock: K3705A
    Certified Pre-Owned: No
    Listed since: 07-25-2025

  • $27,888
    good price
    $1,242 below market
    • 79,121 miles
    • 2 accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Chicago Auto Place (455 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Downers Grove, IL / 455 miles away from Sioux Falls, SD

    Thank you for visiting another one of Chicago Auto Place's exclusive listings! CALL US NOW FOR A FREE QUOTE 630-422-1122 FOR MORE PHOTOS VISIT WWW.CHI...

    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: 1G6KB5RS9LU107455
    Stock: H9146
    Certified Pre-Owned: No
    Listed since: 06-13-2025

  • New Listing
    $41,590
    fair price
    $1,594 above market
    • 9,619 miles
    • 1 accident, 1 owner, personal use only
    • 18 City / 27 Hwy MPG
    • Carvana - Chicago (433 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Chicago, IL / 433 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: 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: 1G6KB5RS8LU103686
    Stock: 2003892725
    Certified Pre-Owned: No
    Listed since: 07-12-2025

  • New Listing
    • 38,513 miles
    • 18 City / 27 Hwy MPG
    • Reina International Auto (432 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Brookfield, WI / 432 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!!!

    AutoCheck Vehicle History Summary Unavailable.

    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

  • $29,697
    fair price
    $685 below market
    • 50,669 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • Auffenberg Mazda (499 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Shiloh, IL / 499 miles away from Sioux Falls, SD

    CARFAX One-Owner. Clean CARFAX. 2019 Cadillac CT6 3.6L Luxury 3.6L V6 SIDI DOHC VVT 10-Speed Automatic AWD 4D Sedan Stellar Black Metallic 18/27 City/...

    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: 1G6KB5RSXKU123002
    Stock: 10934MRC
    Certified Pre-Owned: No
    Listed since: 06-19-2025

  • New Listing
    $35,998
    good price
    $1,674 below market
    • 34,110 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • CarMax Loveland (486 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Loveland, CO / 486 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: 1G6KE5RS0KU121881
    Stock: 27646078
    Certified Pre-Owned: No

  • $20,499
    fair price
    $382 below market
    • 111,124 miles
    • No accidents, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • I-80 Auto Sales (477 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hazel Crest, IL / 477 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: 1G6KB5RS2KU123625
    Stock: 123625
    Certified Pre-Owned: No

    • 91,531 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 18 City / 26 Hwy MPG
    • Booth Motors (497 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Longmont, CO / 497 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

    • 98,583 miles
    • No accidents, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • I-80 Auto Sales (477 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hazel Crest, IL / 477 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

  • New Listing
    $32,995
    good price
    $2,257 below market
    • 42,086 miles
    • No accidents, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Napleton River Oaks Cadillac (483 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Calumet City, IL / 483 miles away from Sioux Falls, SD

    Heated Leather Seats, Moonroof, Nav System, All Wheel Drive, Panoramic Roof, Aluminum Wheels, LPO, INTERIOR PROTECTION PACKAGE, TRANSMISSION, 10-SPEED...

    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: 1G6KB5RSXLU100031
    Stock: P4965
    Certified Pre-Owned: No
    Listed since: 07-29-2025

  • $24,838
    great price
    $2,580 below market
    • 83,331 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • Platinum Auto Plaza (328 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Topeka, KS / 328 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/27 Highway)

    Listing Information:

    VIN: 1G6KG5RS4JU134268
    Stock: DC25164
    Certified Pre-Owned: No

  • New Listing
    $42,257
    fair price
    $1,929 above market
    • 11,840 miles
    • No accidents, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Ewald's Hartford Ford (417 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hartford, WI / 417 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: 1G6KB5RS6LU101273
    Stock: HP58575
    Certified Pre-Owned: No
    Listed since: 08-01-2025

  • Price Drop
    $29,995
    good price
    $1,328 below market
    • 66,438 miles
    • 1 accident, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Napleton Chevrolet St. Charles (441 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Saint Charles, IL / 441 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: 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/26 Highway)

    Listing Information:

    VIN: 1G6KN5R64JU100758
    Stock: P650
    Certified Pre-Owned: No
    Listed since: 05-27-2025

  • $40,576
    fair price
    $1,804 above market
    • 38,978 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Genesis of Merrillville (497 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Merrillville, IN / 497 miles away from Sioux Falls, SD

    LUXURY & CONVENIENCE SUPER CRUISE (TM) DRIVER ASSISTANCE FEATURE LEATHER SEATING SURFACES SEAT, FRONT BUCKET, 16-WAY DRIVER & FRT PASSENGER DRIVER & F...

    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: 1G6KE5RS1LU100250
    Stock: G15867A
    Certified Pre-Owned: No
    Listed since: 06-21-2025

  • $37,420
    fair price
    $1,507 above market
    • 62,287 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Driscoll Motors (452 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pontiac, IL / 452 miles away from Sioux Falls, SD

    2020 Cadillac CT6 3.6L Premium Luxury Recent Arrival. 18/27 City/Highway MPG Bluetooth, Backup Camera, Navigation System, Sunroof/Moonroof, Leather Se...

    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: 1G6KE5RS7LU100043
    Stock: 3934
    Certified Pre-Owned: No
    Listed since: 06-19-2025

  • Price Drop
    • 100,793 miles
    • No accidents, 3 owners, personal use
    • 18 City / 26 Hwy MPG
    • Tom Kadlec Kia (207 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Rochester, MN / 207 miles away from Sioux Falls, SD

    2018 Cadillac CT6 3.0L Twin Turbo Premium Luxury AWD**CLEAN VEHICLE HISTORY REPORT**, Apple CarPlay/Android Auto, Bose Premium Surround Sound 10-Spea...

    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: 1G6KH5R68JU134953
    Stock: S4427
    Certified Pre-Owned: No
    Listed since: 07-27-2025

    • 55,962 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 31 mi est. electric range
    • 23 City / 29 Hwy MPG
    • Wilson Toyota (194 mi away)
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Ames, IA / 194 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

  • Price Drop
    $25,599
    great price
    $2,929 below market
    • 61,725 miles
    • No accidents, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Federico Kia (479 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

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

    Vehicle DetailsExperience the pinnacle of luxury and performance with the 2019 Cadillac CT6 Premium Luxury AWD. This sophisticated sedan is eq...

    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: 1G6KD5RS2KU130973
    Stock: K3733A
    Certified Pre-Owned: No

  • $23,000
    good price
    $1,705 below market
    • 88,084 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Harvard Chevrolet GMC (414 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Harvard, IL / 414 miles away from Sioux Falls, SD

    CT6 3.0L Twin Turbo Premium Luxury NO ACCIDENTS., HEATED & COOLED LEATHER SEATS, PUSH BUTTON START, PREMIUM SOUND SYSTEM, BLUETOOTH, SATELLITE RADIO, ...

    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: 1G6KH5R64HU201932
    Stock: P6232A
    Certified Pre-Owned: No
    Listed since: 07-25-2025

  • $20,997
    fair price
    $1,434 below market
    • 87,384 miles
    • 1 accident, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Tom Kadlec Honda (206 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Rochester, MN / 206 miles away from Sioux Falls, SD

    Cadillac CT6 3.6L Premium Luxury 3.6L V6 SIDI DOHC VVT Loaded UP!!!!, TRADED HERE, Clean Vehicle History Report, Apple CarPlay/Android Auto, Bose Soun...

    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: 1G6KF5RS1HU145483
    Stock: P11950A
    Certified Pre-Owned: No
    Listed since: 07-24-2025

Showing 1 - 21 out of 94 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 2020 Cadillac CT6 in Sioux Falls, SD Values

Estimated values
2020 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.6L 6cyl 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$33,768$36,999$40,132
Clean$32,923$36,021$39,017
Average$31,513$34,391$37,157
Rough$29,681$32,272$34,739

The average list price of a used 2020 Cadillac CT6 in Sioux Falls, South Dakota is $31,732. The average mileage on a used Cadillac CT6 2020 for sale in Sioux Falls, South Dakota is 60,712. Based on the average mileage of 60,712 for used 2020 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 2020 in Sioux Falls, South Dakota to be $31,513.

Filters
Skip to Results

Applied Filters4Active

Select Buying Experience

Location

Search radius500 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.