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28 listings
  • New Listing
    $29,997
    fair price
    $18 below market
    • 50,669 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • Auffenberg Mazda (1 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Shiloh, IL / 1 miles away from O Fallon, IL

    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

  • Price Drop
    $41,995
    fair price
    $1,175 above market
    • 30,020 miles
    • No accidents, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Laura Buick GMC (11 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Collinsville, IL / 11 miles away from O Fallon, IL

    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

  • $25,999
    good price
    $2,224 below market
    • 61,725 miles
    • No accidents, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Federico Kia (22 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Wood River, IL / 22 miles away from O Fallon, IL

    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

  • $16,490
    fair price
    $622 below market
    • 134,586 miles
    • No accidents, 2 owners, personal use only
    • 18 City / 26 Hwy MPG
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Freehold, NJ / 841 miles away from O Fallon, IL

    CarFax No Accidents Reported,Rare Find,High Value Options,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Heated Seats,Heated Steering Wheel,Lane Keep...

    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: 1G6KJ5R66JU119971
    Stock: T9050175AAA
    Certified Pre-Owned: No

  • New Listing
    $25,991
    good price
    $1,438 below market
    • 61,797 miles
    • No accidents, 3 owners, personal use
    • 18 City / 26 Hwy MPG
    • Dave Sinclair Buick GMC (25 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Saint Louis, MO / 25 miles away from O Fallon, IL

    2018 Cadillac CT6 3.0L Twin Turbo Premium Luxury POWER SUNROOF, REAR BACK UP CAMERA, LOCAL TRADE IN, HEATED LEATHER SEATING, COOLED LEATHER SEATING, A...

    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: 1G6KH5R68JU128506
    Stock: T251422A
    Certified Pre-Owned: No
    Listed since: 07-03-2025

  • Price Drop
    $23,955
    fair price
    $178 below market
    • 78,723 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 27 Hwy MPG
    • Dave Sinclair Lincoln (23 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Saint Louis, MO / 23 miles away from O Fallon, IL

    For Sale: 2018 Cadillac CT6 3.6L Premium Luxury AWD Elegant Full-Size Luxury SedanPrice: $23,955 Mileage: 78,723 miles VIN: 1G6KG5RS0JU120710Offered...

    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: 1G6KG5RS0JU120710
    Stock: 25422A
    Certified Pre-Owned: No

  • New Listing
    $35,998
    good price
    $2,185 below market
    • 29,002 miles
    • 1 accident, 1 owner, personal use only
    • 18 City / 27 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from CA to IL*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Modesto, CA / 1,683 miles away from O Fallon, 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: 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: Yes

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KG5RS9JU159280
    Stock: 27303253
    Certified Pre-Owned: No

  • New Listing
    • 74,252 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 Chicago, IL / 257 miles away from O Fallon, 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: 1G6KF5RS6HU192766
    Stock: 2003818033
    Certified Pre-Owned: No
    Listed since: 06-13-2025

  • New Listing
    • 53,339 miles
    • No accidents, 5 owners, personal use only
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Buffalo, NY / 650 miles away from O Fallon, 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: 1G6KK5R64GU168012
    Stock: 2003814251
    Certified Pre-Owned: No
    Listed since: 06-17-2025

    • 69,937 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 Oklahoma City, OK / 471 miles away from O Fallon, 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: 1G6KB5RS5JU152390
    Stock: 2003828102
    Certified Pre-Owned: No
    Listed since: 06-20-2025

  • New Listing
    • 17,883 miles
    • No accidents, 1 owner, personal use
    • 22 City / 30 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Phoenix, AZ / 1,282 miles away from O Fallon, 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:

    25 Combined MPG (22 City/30 Highway)

    Listing Information:

    VIN: 1G6KC5RX1JU159622
    Stock: 2003868741
    Certified Pre-Owned: No
    Listed since: 07-03-2025

    • 28,650 miles
    • No accidents, 1 owner, personal use
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Richmond, VA / 670 miles away from O Fallon, 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: 1G6KG5R60GU165805
    Stock: 2003885771
    Certified Pre-Owned: No
    Listed since: 07-18-2025

  • New Listing
    • 97,818 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • Clement Pre-Owned Florissant (26 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Florissant, MO / 26 miles away from O Fallon, IL

    Certified. Black Raven 2019 Cadillac CT6 4D Sedan 3.6L Luxury 3.6L V6 SIDI DOHC VVT AWDThis CT6 is well equipped with Convenience Package (Automatic S...

    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: 1G6KB5RS7KU133499
    Stock: C18080M
    Certified Pre-Owned: No
    Listed since: 05-30-2025

  • Price Drop
    • 92,770 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 Cleveland, OH / 478 miles away from O Fallon, 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: 1G6KF5RS8HU183731
    Stock: 2003849634
    Certified Pre-Owned: No
    Listed since: 07-14-2025

    • 38,902 miles
    • No accidents, 4 owners, personal use only
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Indianapolis, IN / 217 miles away from O Fallon, 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: 1G6KG5R69GU150073
    Stock: 2003856132
    Certified Pre-Owned: No
    Listed since: 07-02-2025

    • 9,619 miles
    • 1 accident, 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 Memphis, TN / 238 miles away from O Fallon, 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: 1G6KB5RS8LU103686
    Stock: 2003892725
    Certified Pre-Owned: No
    Listed since: 07-12-2025

    • 47,155 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Dallas, TX / 554 miles away from O Fallon, 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: 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: 1G6KF5RS7HU205718
    Stock: 2003846950
    Certified Pre-Owned: No
    Listed since: 07-02-2025

  • Price Drop
    • 56,704 miles
    • No accidents, 3 owners, personal use
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Richmond, VA / 670 miles away from O Fallon, 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: 1G6KD5RS6KU118888
    Stock: 2003725101
    Certified Pre-Owned: No
    Listed since: 05-10-2025

    • 79,365 miles
    • Manufacturer buyback reported, 3 owners, personal use
    • 18 City / 26 Hwy MPG
    • Continental Auto Sales (33 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Maryland Heights, MO / 33 miles away from O Fallon, IL

    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: Yes

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KN5R6XHU207730
    Stock: VIN
    Certified Pre-Owned: No
    Listed since: 06-30-2025

    • 58,818 miles
    • 1 accident, 3 owners, personal use only
    • CarMax (In-stock online)
    • Transfer available from AZ to IL*
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Gilbert, AZ / 1,273 miles away from O Fallon, 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: 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: Yes

    Features and Specs:

    26 Combined MPG (N/A City/N/A Highway)

    Listing Information:

    VIN: LREKK5RXXHA048788
    Stock: 27452018
    Certified Pre-Owned: No

  • New Listing
    • 37,588 miles
    • 18 City / 27 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from NC to IL*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Pineville, NC / 553 miles away from O Fallon, 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:

    22 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KD5RS9GU152332
    Stock: 26554681
    Certified Pre-Owned: No

Showing 1 - 21 out of 28 listings
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* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.