Used 2020 Cadillac CT6 for SaleNationwide
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 58,547
- Stock #:
- 3183
- VIN:
- 1G6KB5RS8LU100111
2020 Cadillac CT6
3.6L Luxury AWD
58,547 mi
$29,478
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 34,172
- Stock #:
- 17943
- VIN:
- 1G6KN5R61KU133573
2019 Cadillac CT6
3.0TT Sport AWD
34,172 mi
$35,293
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Radiant Silver Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Auburn with Jet Black accents
- Transmission:
- Automatic
- Mileage:
- 55,260
- Stock #:
- 96379
- VIN:
- 1G6KD5RS0KU125688
2019 Cadillac CT6
3.6L Premium Luxury AWD
55,260 mi
$32,165
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Radiant Silver Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 30,778
- Stock #:
- 57363P
- VIN:
- 1G6KB5RSXLU108680
2020 Cadillac CT6
3.6L Luxury AWD
30,778 mi
$32,650
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 42,126
- Stock #:
- P1332A
- VIN:
- 1G6KB5RS7KU137018
2019 Cadillac CT6
3.6L Luxury AWD
42,126 mi
$28,339
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Manhattan Noir Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 73,686
- Stock #:
- P8892
- VIN:
- 1G6KB5RS0KU123137
2019 Cadillac CT6
3.6L Luxury AWD
73,686 mi
$23,624
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Silver
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- Automatic
- Mileage:
- 98,873
- Stock #:
- 15504
- VIN:
- 1G6KE5RS4LU104423
2020 Cadillac CT6
3.6L Premium Luxury AWD
98,873 mi
$30,050
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 58,388
- Stock #:
- LBO5035A
- VIN:
- 1G6KD5RS7KU136994
2019 Cadillac CT6
3.6L Premium Luxury AWD
58,388 mi
$27,822
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 94,176
- Stock #:
- 43KU126986T1
- VIN:
- 1G6KB5RS5KU126986
2019 Cadillac CT6
3.6L Luxury AWD
94,176 mi
$23,212
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Red
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 79,411
- Stock #:
- 2006502A
- VIN:
- 1G6KB5RS9KU119880
2019 Cadillac CT6
3.6L Luxury AWD
79,411 mi
$24,235
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 64,321
- Stock #:
- X0060
- VIN:
- 1G6KB5RS3LU103823
-$1,500
2020 Cadillac CT6
3.6L Luxury AWD
64,321 mi
$30,894
$29,394
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Gray (Steel Metallic)
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 66,143
- Stock #:
- TKU133175
- VIN:
- 1G6KB5RS3KU133175
2019 Cadillac CT6
3.6L Luxury AWD
66,143 mi
$27,894
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 87,243
- Stock #:
- 28017VV
- VIN:
- 1G6KB5RS5KU127345
-$1,444
2019 Cadillac CT6
3.6L Luxury AWD
87,243 mi
$23,487
$22,043
About 2020 Cadillac CT6
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 106,536
- Stock #:
- 26W4693A
- VIN:
- 1G6KE5RS0LU110932
2020 Cadillac CT6
3.6L Premium Luxury AWD
106,536 mi
$29,500
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Manhattan Noir Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 79,340
- Stock #:
- 135542
- VIN:
- 1G6KD5RS6KU140664
2019 Cadillac CT6
3.6L Premium Luxury AWD
79,340 mi
$27,215
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black Raven
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 81,020
- Stock #:
- KU126954
- VIN:
- 1G6KB5RS3KU126954
2019 Cadillac CT6
3.6L Luxury AWD
81,020 mi
$23,900
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Sahara Beige With Jet Black Accents)
- Transmission:
- Automatic
- Mileage:
- 34,301
- Stock #:
- KU119500
- VIN:
- 1G6KD5RS3KU119500
2019 Cadillac CT6
3.6L Premium Luxury AWD
34,301 mi
$35,100
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- White
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 112,125
- Stock #:
- 123361
- VIN:
- 1G6KD5RS2KU123361
2019 Cadillac CT6
3.6L Premium Luxury AWD
112,125 mi
$24,374
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Crystal White Tricoat
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Sahara Beige with Jet Black accents)
- Transmission:
- Automatic
- Mileage:
- 110,197
- Stock #:
- 125251
- VIN:
- 1G6KB5RS8KU125251
2019 Cadillac CT6
3.6L Luxury AWD
110,197 mi
$21,780
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Stellar Black Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 23,939
- Stock #:
- CS7478
- VIN:
- 1G6KD5RS1KU122556
2019 Cadillac CT6
3.6L Premium Luxury AWD
23,939 mi
$39,534
- Year:
- 2020
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3.6L V6
- Exterior color:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 48,458
- Stock #:
- BDC15109
- VIN:
- 1G6KE5RS6LU101927
2020 Cadillac CT6
3.6L Premium Luxury AWD
48,458 mi
$39,070
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- Automatic
- Mileage:
- 96,283
- Stock #:
- 17915
- VIN:
- 1G6KN5R66KU145279
2019 Cadillac CT6
3.0TT Sport AWD
96,283 mi
$27,594
- Year:
- 2019
- Make:
- Cadillac
- Model:
- CT6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 404 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 66,553
- Stock #:
- X16411
- VIN:
- 1G6KN5R65KU142471
2019 Cadillac CT6
3.0TT Sport AWD
66,553 mi
$30,523
Overview
The Cadillac CT6 is the brand’s largest and poshest sedan, competing with the Lincoln Continental, Acura RLX, BMW 5 Series, and Volvo S90. For 2020, it soldiers on with minor updates.
Sometime last year, the base 4-cylinder engine disappeared from the lineup. That leaves a 3.6-liter V6 as the new base engine, making 335 horsepower and 284 pound-feet of torque. Also gone is last year’s twin-turbocharged V6. In its stead is a more potent twin-turbocharged 4.2 liter V8 that measures 500 hp and 574 lb-ft. Both engines hook up to a 10-speed automatic transmission and standard all-wheel drive (AWD). Even the standard suspension setup is composed, but Cadillac offers a magnetic ride setup and active rear steering above that.
This year, the CT6 comes in Luxury, Premium Luxury, and Platinum grades. The Luxury includes 19-inch alloy wheels, LED exterior lighting, a panoramic power sunroof, heated front seats, heated outside mirrors, keyless access and start, 14-way power seats, memory settings, dual-zone automatic climate control, leather upholstery, an 8-inch instrument cluster LCD, a 10.2-inch infotainment system with Apple CarPlay and Android Auto connectivity, and 4G LTE hotspot capability. Features on higher trims consist of a 12-inch instrument cluster LCD, ventilated front seats, heated rear outboard seats, backseat entertainment screens, 4-zone climate control, 20-inch wheels, a rear spoiler, and a Bose Panaray system with 34 speakers.
As befitting a vehicle of its stature, the CT6 comes with an excellent array of standard and optional safety features. Every model gets forward-collision warning, automatic emergency braking, a safety-alert seat, a following-distance indicator, lane-keeping assist, lane-departure warning, rear cross-traffic alert, and blind-spot monitoring. Adaptive cruise control, enhanced automatic emergency braking, reverse automatic braking, night vision, and Super Cruise come standard on Premium Luxury and above trims. Super Cruise is a semi-autonomous driving function that works on certain divided-access highways. No major agency has crash-tested the CT6, but that’s pretty normal for large luxury sedans.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
4.0 Overall rating
Filter by rating
Jim C
Reviewed a 2020 Cadillac CT6 on Apr 9, 2024
The last full size luxury Cadillac production. Excellent
Samuel C
Reviewed a 2020 Cadillac CT6 on Apr 5, 2024
A very responsive, well equipped, full size sedan. GM got it right, and canceled a winner.
Jerry L
Reviewed a 2020 Cadillac CT6 on Sep 3, 2023
Average standard features. Highly over priced. Missing comfort.
Maurice H
Reviewed a 2020 Cadillac CT6 on Feb 27, 2023
Its a great car. Im still learning all the features. The ride is great. Its only been a day but Im very satisfied so far. I cant believe Cadillac stopped making it.
2020 Cadillac CT6 Trims
| Trim type | MSRP |
|---|---|
| 3.6L Premium Luxury AWD | $74,495 |
| 4.2TT Platinum AWD | $96,495 |
| 3.6L Luxury AWD | $58,995 |
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
2020 Cadillac CT6 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2020 Cadillac CT6 prices has changed over time.
See more price trends2020 Cadillac CT6 Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest-Price Market: Miami, FL leads with an average price of $32,990, indicating a premium market for the CT6.
- Best Value: Atlanta, GA offers the lowest average price at $21,900, presenting a compelling option for budget-conscious shoppers.
- Inventory Drives Stability: Chicago, IL has the most listings at 6, suggesting a stable supply that may help maintain competitive pricing.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Chicago, IL | 6 | $23,299 |
| Dallas, TX | 6 | $21,995 |
| New York, NY | 5 | $30,634 |
| Atlanta, GA | 5 | $21,900 |
| Houston, TX | 3 | $27,500 |
| Boston, MA | 3 | $21,338 |
| Philadelphia, PA | 2 | $30,767 |
| Miami, FL | 2 | $32,990 |
Pricing by Trim Packages
Key Insights
- Volume Leader: The 3.6L Luxury AWD trim has the highest inventory with 133 listings, indicating strong demand for this configuration.
- Premium Spread: The 4.2TT Platinum AWD trim, priced at $96,495, represents a significant premium over the base trim, highlighting the luxury segment's pricing strategy.
- Drivetrain Effect: All trims are equipped with AWD, which may appeal to buyers in regions with adverse weather conditions, potentially influencing demand.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| 3.6L Luxury AWD | 133 | $58,995 | AWD | 3.6L 335 hp V6 |
| 3.6L Premium Luxury AWD | 87 | $74,495 | AWD | 3.6L 335 hp V6 |
| 4.2TT Platinum AWD | 3 | $96,495 | AWD | 4.2L 500 hp V8 |
Pricing Analysis by Model Year
Key Insights
- New-Car Premium: The 2020 model has a starting MSRP of $58,995, with an average price of $30,567, indicating significant depreciation.
- Depreciation Curve: The 2016 model shows the steepest depreciation at -66.6%, suggesting that older models may offer better value for budget-conscious buyers.
- Best Value Sweet Spot: The 2019 model is priced at $30,657, which is only -39.3% below its MSRP, making it a potentially attractive option for buyers seeking a balance between price and features.
Model Year Pricing
| Model Year | Starting MSRP | Avg Price | Avg Price vs Starting MSRP |
|---|---|---|---|
| 2020 | $58,995 | $30,567 | -48.2% |
| 2019 | $50,495 | $30,657 | -39.3% |
| 2018 | $54,095 | $22,948 | -57.6% |
| 2017 | $53,795 | $18,837 | -65.0% |
| 2016 | $53,495 | $17,879 | -66.6% |
These recommendations are based on CarGurus' proprietary market data from November 11, 2026, CarGurus experts' opinions, and generative AI.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
Is the 2020 Cadillac CT6 a good car?
Generally — the 2020 Cadillac CT6 is a solid used-car choice if you want a large luxury sedan with a favorable shopper rating of 4/5. That rating suggests you’re looking at a model that many owners have found satisfying, and the market also shows 30.4% of listings as good or great deals. Taken together, that points to a car that can make sense if you’re comparing value, comfort, and price carefully.
Is the 2020 Cadillac CT6 reliable?
Owners rate it 4/5, a solid signal of long-term satisfaction. That kind of owner feedback suggests the CT6 can be a reasonable used buy when you find one that has been maintained well and checked thoroughly. For long-term ownership, your biggest risk is buying a car with hidden wear or prior damage, so condition and history matter a lot.
What should I look for when buying a used 2020 Cadillac CT6?
At 65.7% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
You should start with a vehicle history report and confirm that the car’s past matches the seller’s story. Then prioritize a pre-purchase inspection, especially if the car has higher mileage, uneven panel gaps, or signs of cosmetic repair. Focus on overall condition first, because a clean-looking luxury sedan can still hide expensive issues if it has been repaired poorly.
Is now a good time to buy a used 2020 Cadillac CT6?
This looks like a moderate, selective buyer’s market, so you have room to shop carefully rather than rush.
- Deal availability: 30.4% of listings are priced as good or great deals.
- Inventory: There are 102 listings available.
- Clean inventory: 65.7% of listings are accident-free.
Should I buy a 2020 Cadillac CT6 or consider a different year?
If you're weighing the 2020 against nearby model years, here's how to think about it:
Choose the 2020 if:
- 30.4% of listings are priced as good or great deals.
- At 65.7% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
- Owners rate it 4/5 — a solid satisfaction signal.
The bottom line: The 2020 CT6 makes the most sense if you want this specific model year and you can verify a clean, well-kept example. If you’re more price-sensitive, you may want to widen your search to nearby years and compare condition, history, and asking price before deciding.
How does the 2020 Cadillac CT6 compare to the 2020 BMW 7 Series?
| Spec | 2020 Cadillac CT6 | 2020 BMW 7 Series |
|---|---|---|
| Starting MSRP | $58,995 | $86,450 |
| Engine | 3.6L 335 hp V6 | 3.0L 335 hp I6 |
| Horsepower | 335 hp @ 6800 rpm | 335 hp @ 5500 rpm |
| MPG/MPGe (city) | 18 | 22 |
| MPG/MPGe (highway) | 27 | 29 |
| Listings available | 102 | 475 |
| Good & great deal share | 30.4% | 36% |
| Accident-free share | 65.7% | 67.8% |
These recommendations are based on CarGurus' proprietary market data from November 10, 2026, CarGurus experts' opinions, and generative AI.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
