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98 listings
- Price Drop$19,990great price$4,328 below market
- 74,808 miles
- No accidents, 2 owners, personal use
- 18 City / 27 Hwy MPG
- Bomnin Chevrolet Buick GMC Nanuet (260 mi away)
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Located in Nanuet, NY / 260 miles away from South Portland, ME
Priced below KBB Fair Purchase Price! Apple CarPlay/Android Auto, Bose Premium Surround Sound 10-Speaker System, Cadillac 4G LTE, Dual Zone Automatic ...
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: 1G6KD5RS5JU104477
Stock: C104477A
Certified Pre-Owned: No
Listed since: 09-04-2025 - Price Drop$15,495
- 132,298 miles
- 1 accident, 2 owners, personal use
- 18 City / 27 Hwy MPG
- Walt's Motors (127 mi away)
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Located in Taunton, MA / 127 miles away from South Portland, ME
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: 1G6KB5RS6HU201347
Stock: C2197
Certified Pre-Owned: No
Listed since: 08-16-2025 - Price Drop$10,999great price$3,537 below market
- 129,997 miles
- 1 accident, 3 owners, corporate fleet vehicle
- 18 City / 27 Hwy MPG
- Bell Audi (303 mi away)
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Located in Edison, NJ / 303 miles away from South Portland, ME
2016 Cadillac CT6 3.6L Luxury Graphite Metallic 3.6L V6 SIDI DOHC VVT 8-Speed Automatic AWD 18/27 City/Highway MPG All Wheel Drive, 10 Speakers, 4-Whe...
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: 1G6KD5RS0GU166944
Stock: BA27241C
Certified Pre-Owned: No
Listed since: 07-31-2025 - $30,799fair price$547 below market
- 62,990 miles
- No accidents, 2 owners, corporate fleet vehicle
- 18 City / 26 Hwy MPG
- AutoBay (344 mi away)
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Located in Burlington, NJ / 344 miles away from South Portland, ME
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: 1G6KN5R62KU145666
Stock: NV03141k1
Certified Pre-Owned: No - New Listing$29,590great price$4,038 below market
- 47,728 miles
- No accidents, 1 owner, personal use
- 18 City / 27 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
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Located in Atlanta, GA / 1,022 miles away from South Portland, ME
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 - Price Drop$22,777good price$2,116 below market
- 78,978 miles
- No accidents, 5 owners, personal use
- 18 City / 27 Hwy MPG
- Piazza Nissan of Ardmore (361 mi away)
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Located in Ardmore, PA / 361 miles away from South Portland, ME
**ON SALE** Heated Seats, Sunroof, NAV, Heated Rear Seat, All Wheel Drive, Panoramic Roof, DRIVER ASSIST PACKAGE, STEERING, ACTIVE, REAR, TRANSMISSION...
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: 1G6KF5RS2JU102437
Stock: P3059
Certified Pre-Owned: No
Listed since: 04-10-2025 - Price Drop$14,995good price$1,648 below market
- 138,492 miles
- 2 accidents, 2 owners, corporate fleet vehicle
- 18 City / 27 Hwy MPG
- Car City (East Windsor) (171 mi away)
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Located in East Windsor, CT / 171 miles away from South Portland, ME
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: 1G6KF5RS9GU152678
Stock: A-152678
Certified Pre-Owned: No
Listed since: 09-05-2025 - $19,995good price$2,012 below market
- 77,530 miles
- 1 accident, 2 owners, personal use
- 18 City / 27 Hwy MPG
- Worldwide Auto (328 mi away)
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Located in Trenton, NJ / 328 miles away from South Portland, ME
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: 1G6KB5RS7JU125319
Stock: 125319
Certified Pre-Owned: No
Listed since: 07-27-2025 - $24,995fair price$8 below market
- 70,048 miles
- No accidents, 2 owners, personal use only
- 18 City / 27 Hwy MPG
- Car City (East Windsor) (171 mi away)
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Located in East Windsor, CT / 171 miles away from South Portland, ME
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: 1G6KD5RS7JU126156
Stock: A-126156
Certified Pre-Owned: No
Listed since: 06-26-2025 - $27,000fair price$704 below market
- 50,050 miles
- No accidents, 2 owners, personal use only
- 18 City / 27 Hwy MPG
- Blaise Alexander Kia (377 mi away)
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Located in Mountoursville, PA / 377 miles away from South Portland, ME
2018 Cadillac CT6 3.6L Luxury williamsport, muncy, montoursville area, LOCAL TRADE, LEATHER SEATS, MOONROOF SUNROOF, ALL WHEEL DRIVE, BLUETOOTH, SATEL...
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: 1G6KD5RS5JU108867
Stock: N25425A
Certified Pre-Owned: No
Listed since: 08-31-2025 - Price Drop$13,100fair price$226 below market
- 143,473 miles
- 1 accident, 2 owners, personal use
- 18 City / 27 Hwy MPG
- Cherner Brothers Auto (476 mi away)
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Located in Kensington, MD / 476 miles away from South Portland, ME
Our bold and luxurious Maryland State Inspected 2016 Cadillac CT6 3.6L Luxury Sedan commands attention in Graphite Metallic with a perfect blend of pe...
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:
22 Combined MPG (18 City/27 Highway)
Listing Information:
VIN: 1G6KD5RS1GU159744
Stock: 6192A_1
Certified Pre-Owned: No
Listed since: 07-11-2025 - $26,268good price$1,200 below market
- 54,358 miles
- No accidents, 2 owners, personal use
- 18 City / 27 Hwy MPG
- Gentilini Ford (386 mi away)
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Located in Woodbine, NJ / 386 miles away from South Portland, ME
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:
21 Combined MPG (18 City/27 Highway)
Listing Information:
VIN: 1G6KD5RS1JU100751
Stock: C100751
Certified Pre-Owned: No
Listed since: 05-20-2025 - Price Drop$23,457fair price$325 above market
- 64,001 miles
- No accidents, 2 owners, personal use
- 18 City / 27 Hwy MPG
- Grieco Ford of Branford (208 mi away)
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Located in Branford, CT / 208 miles away from South Portland, ME
Odometer is 16276 miles below market average! Clean CARFAX.360 Camera, Automatic Safety Belt Tightening, Cadillac 4G LTE, Driver Awareness & Convenien...
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: 1G6KB5RS1JU156713
Stock: P00218A
Certified Pre-Owned: No
Listed since: 08-05-2025 - $21,995fair price$640 above market
- 90,954 miles
- No accidents, 2 owners, personal use
- 18 City / 26 Hwy MPG
- Giant Auto Sales (293 mi away)
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Located in East Syracuse, NY / 293 miles away from South Portland, ME
Visit Giant Auto Sales online at thegiantonline.com to see more pictures of this vehicle or call us at 8**-6**-0*** today to schedule your test drive....
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: 1G6KG5R63GU154488
Stock: BA125
Certified Pre-Owned: No
Listed since: 07-10-2025 - $22,968fair price$144 above market
- 85,247 miles
- No accidents, 3 owners, personal use
- 18 City / 27 Hwy MPG
- Luv Toyota (470 mi away)
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Located in Lakewood, NY / 470 miles away from South Portland, ME
Black Raven 2018 Cadillac CT6 3.6L Luxury AWD 8-Speed Automatic 3.6L V6 SIDI DOHC VVT 10 Speakers, 4-Wheel Disc Brakes, ABS brakes, Air Conditioning, ...
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: 1G6KD5RS9JU113831
Stock: TP5012
Certified Pre-Owned: No
Listed since: 08-20-2025 - $26,990fair price$1,243 below market
- 74,519 miles
- 1 accident, 2 owners, personal use only
- 18 City / 27 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
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Located in Oklahoma City, OK / 1,549 miles away from South Portland, ME
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 - $28,590fair price$1,137 above market
- 45,963 miles
- No accidents, 2 owners, personal use only
- 18 City / 27 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
Close
Located in Phoenix, AZ / 2,335 miles away from South Portland, ME
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 - Price Drop$25,590fair price$42 above market
- 68,974 miles
- No accidents, 2 owners, personal use only
- 18 City / 27 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
Close
Located in Chicago, IL / 921 miles away from South Portland, ME
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: 1G6KD5RS1JU159749
Stock: 2003974000
Certified Pre-Owned: No
Listed since: 08-28-2025 - Price Drop$32,590fair price$480 above market
- 35,517 miles
- No accidents, 1 owner, personal use only
- 18 City / 26 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
Close
Located in Cleveland, OH / 601 miles away from South Portland, ME
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: 1G6KK5R62GU167649
Stock: 2004000954
Certified Pre-Owned: No
Listed since: 08-21-2025 - $33,900fair price$29 below market
- 58,418 miles
- 1 accident, 3 owners, corporate fleet vehicle
- 18 City / 26 Hwy MPG
- Napoli Nissan (222 mi away)
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Located in Milford, CT / 222 miles away from South Portland, ME
18/26 City/Highway MPG Odometer is 15332 miles below market average! Satin Steel Metallic 2018 Cadillac CT6 Automatic 3.0L V6 AWD3.0L Twin Turbo Plati...
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: Yes
Features and Specs:
21 Combined MPG (18 City/26 Highway)
Listing Information:
VIN: 1G6KN5R62JU100726
Stock: X4385
Certified Pre-Owned: No
Listed since: 05-06-2025 - $33,990fair price$888 below market
- 52,910 miles
- 2 accidents, 2 owners, corporate fleet vehicle
- 18 City / 26 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
Close
Located in Tampa, FL / 1,279 miles away from South Portland, ME
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
Showing 43 - 63 out of 98 listings
Consumer Reviews for the Cadillac CT6
Read recent reviews for the Cadillac CT6
Fighting with GM is not easy
m300michael, 11/14/2017
2017 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.0L 6cyl Turbo 8A)
I am having issue that involves the transmission on this vehicle. On occasion the transmission shifts/lurches so hard that it feels like the vehicle was struck from the rear. I did take the vehicle in for service and dealership stated that they upgraded the computer and the problem should not re-occur. Wrong! The same issue has occurred several more times and one time my grandkids … were in the vehicle and it actually scared them when the vehicle lurched. Reading other reviews involving the Cadillac CT6 shows that I am not alone with this issue. I know that there is no perfect vehicle available on this planet but, what I fear is that the lurching may occur and cause an accident or transmission will not last long and will need to be replaced (hopefully, while under warranty).
This transmission issue is still an issue, as I have taken the vehicle back to the dealership and the dealership cannot "duplicate" the hard shift. Interesting fact is that every single person that has been in my vehicle has felt this problem and I have had it occur before and after taking the vehicle for service.
No more review necessary. GM repurchased this vehicle as of 11/15/2018 due to the issue with the transmission and their inability to either replace or repair it.
Used 2018 Cadillac CT6 in South Portland, ME Values
Estimated values
2018 Cadillac CT6 Luxury 4dr Sedan AWD (3.6L 6cyl 8A) with no options
| Condition | Trade-In | Private Party | Dealer Retail |
|---|---|---|---|
| Outstanding | $19,464 | $21,713 | $23,577 |
| Clean | $18,828 | $20,980 | $22,756 |
| Average | $17,766 | $19,758 | $21,387 |
| Rough | $16,387 | $18,169 | $19,608 |
The average list price of a used 2018 Cadillac CT6 in South Portland, Maine is $24,099. The average mileage on a used Cadillac CT6 2018 for sale in South Portland, Maine is 77,964. Based on the average mileage of 77,964 for used 2018 Cadillac CT6 for sale in South Portland, ME 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 South Portland, Maine to be $17,766.
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