Used Cadillac CT4 for Sale Under $20,000
30 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Jet Black accents
- Transmission:
- Automatic
- Mileage:
- 99,001
- Stock #:
- L0130806
- VIN:
- 1G6DB5RK6L0130806
2020 Cadillac CT4
Premium Luxury RWD
99,001 mi
Houston, TX
Fair Deal
$19,536
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Whisper Beige With Jet Black Accents)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 119,184
- Stock #:
- L0139926
- VIN:
- 1G6DJ5RK2L0139926
New arrival
2020 Cadillac CT4
Luxury RWD
119,184 mi
Brandon, MS
Good Deal
$16,825
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Jet Black Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 77,098
- Stock #:
- 26387B
- VIN:
- 1G6DA5RK8L0135394
Price drop
-$700
2020 Cadillac CT4
Luxury RWD
77,098 mi
Camp Verde, AZ
Good Deal
$20,669
$19,969
- Year:
- 2021
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Whisper Beige With Jet Black Accents)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 96,149
- Stock #:
- 19716
- VIN:
- 1G6DJ5RK5M0120305
2021 Cadillac CT4
Luxury RWD
96,149 mi
Harrisonville, MO
Great Deal
$17,849
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Whisper Beige With Jet Black Accents)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 82,263
- Stock #:
- MK0207A
- VIN:
- 1G6DJ5RK1L0156099
Price drop
-$1,250
2020 Cadillac CT4
Luxury RWD
82,263 mi
Louisville, KY
Great Deal
$19,498
$18,248
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 82,475
- Stock #:
- G6264
- VIN:
- 1G6DJ5RKXL0154013
2020 Cadillac CT4
Luxury RWD
82,475 mi
Southington, CT
Good Deal
$19,669
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 310 hp 2.7L I4
- Exterior color:
- Black Raven
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- JET BLACK WITH JET BLACK ACCENTS
- Transmission:
- Automatic
- Mileage:
- 102,960
- Stock #:
- 158850
- VIN:
- 1G6DF5RL5L0151563
2020 Cadillac CT4
Premium Luxury AWD
102,960 mi
Miami, FL
Fair Deal
$17,299
- Year:
- 2021
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- White
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 115,609
- Stock #:
- P2564
- VIN:
- 1G6DA5RK6M0146833
2021 Cadillac CT4
Luxury RWD
115,609 mi
Fort Worth, TX
Fair Deal
$18,220
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Red
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 97,106
- Stock #:
- 4582
- VIN:
- 1G6DF5RK8L0141519
2020 Cadillac CT4
Premium Luxury AWD
97,106 mi
Berwyn, IL
Good Deal
$19,407
- Year:
- 2021
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Whisper Beige w/Jet Black Accents)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 75,819
- Stock #:
- C34320B
- VIN:
- 1G6DJ5RK4M0132851
New arrival
2021 Cadillac CT4
Luxury RWD
75,819 mi
Murray, UT
Great Deal
$19,494
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Black
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- Automatic
- Mileage:
- 72,553
- Stock #:
- L0154776
- VIN:
- 1G6DF5RK5L0154776
2020 Cadillac CT4
Premium Luxury AWD
72,553 mi
Manassas Park, VA
Great Deal
$19,890
- Year:
- 2021
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Jet Black accents Leather
- Transmission:
- Automatic
- Mileage:
- 96,891
- Stock #:
- 012193
- VIN:
- 1G6DB5RK7M0121193
New arrival
2021 Cadillac CT4
Premium Luxury RWD
96,891 mi
Spring, TX
Great Deal
$18,725
- Year:
- 2021
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Red
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 137,694
- Stock #:
- 681
- VIN:
- 1G6DC5RK3M0112732
2021 Cadillac CT4
Sport RWD
137,694 mi
El Paso, TX
Good Deal
$18,120
- Year:
- 2022
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 235 hp 2L I4
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Whisper Beige With Jet Black Accents)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 91,633
- Stock #:
- 15352A
- VIN:
- 1G6DB5RK8N0119549
Photos coming soon
New arrival
2022 Cadillac CT4
Premium Luxury RWD
91,633 mi
Daytona Beach, FL
Fair Deal
$19,997
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- White
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Off White
- Transmission:
- 8-Speed Automatic
- Mileage:
- 99,293
- VIN:
- 1G6DJ5RK5L0154825
New arrival
2020 Cadillac CT4
Luxury RWD
99,293 mi
Nowata, OK
Great Deal
$16,495
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Red
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Mileage:
- 78,008
- Stock #:
- C70034AMR
- VIN:
- 1G6DJ5RKXL0136841
Price drop
-$4,800
2020 Cadillac CT4
Luxury RWD
78,008 mi
Inglewood, CA
Great Deal
$19,637
$14,837
- Year:
- 2023
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 235 hp 2L I4
- Exterior color:
- White
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 101,440
- Stock #:
- 115434
- VIN:
- 1G6DJ5RK7P0115434
New arrival
2023 Cadillac CT4
Luxury RWD
101,440 mi
Miramar, FL
Great Deal
$17,798
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Green
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 149,000
- VIN:
- 1G6DA5RK1L0154031
New arrival
2020 Cadillac CT4
Luxury RWD
149,000 mi
Mobile, AL
Great Deal
$11,998
- Year:
- 2021
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Black
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 100,100
- VIN:
- 1G6DG5RKXM0129158
2021 Cadillac CT4
Sport AWD
100,100 mi
Grand Island, NE
No Rating
$19,995
- Year:
- 2021
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Black
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 102,418
- Stock #:
- 11232
- VIN:
- 1G6DA5RK5M0121955
2021 Cadillac CT4
Luxury RWD
102,418 mi
Dyer, IN
No Rating
$12,900
- Year:
- 2023
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 235 hp 2L I4
- Exterior color:
- [GBA] Black Raven
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 68,791
- VIN:
- 1G6DC5RK0P0113437
![[GBA] Black Raven 2023 Cadillac CT4 Sedan Rear-Wheel Drive Automatic](https://static.cargurus.com/images/forsale/2026/09/19/08/59/2023_cadillac_ct4-pic-9205839484740477562-1024x768.jpeg?io=true&width=640&height=480&fit=bounds&format=jpg&auto=webp)
New arrival
2023 Cadillac CT4
Sport RWD
68,791 mi
Mooresville, NC
No Rating
$19,950
- Year:
- 2021
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 113,455
- Stock #:
- 08170
- VIN:
- 1G6DB5RK7M0108170
2021 Cadillac CT4
Premium Luxury RWD
113,455 mi
Lafayette, LA
No Rating
$19,995
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- Red
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 78,008
- Stock #:
- C70034A
- VIN:
- 1G6DJ5RKXL0136840
Price drop
-$4,800
2020 Cadillac CT4
Luxury RWD
78,008 mi
Culver City, CA
No Rating
$19,670
$14,870
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 237 hp 2L I4
- Exterior color:
- White
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 103,380
- Stock #:
- 3470
- VIN:
- 1G6DJ5RK6L0141890
2020 Cadillac CT4
Luxury RWD
103,380 mi
Marietta, OH
No Rating
$17,999
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