Used 2020 Cadillac CT6 for Sale nearDenver, CO
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:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 110,447
- Stock #:
- JYC-107095
- VIN:
- 1G6KB5RS5LU107095
2020 Cadillac CT6
3.6L Luxury AWD
110,447 mi
$25,067
- Year:
- 2019
- 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:
- Black
- Transmission:
- Automatic
- Mileage:
- 21,753
- Stock #:
- 70197204
- VIN:
- 1G6KB5RS7KU121658
2019 Cadillac CT6
3.6L Luxury AWD
21,753 mi
$37,597
- 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:
- 46,460
- Stock #:
- CINLU111997
- VIN:
- 1G6KB5RSXLU111997
2020 Cadillac CT6
3.6L Luxury AWD
46,460 mi
$36,580
- 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:
- Brown
- Transmission:
- Automatic
- Mileage:
- 46,213
- Stock #:
- KU133948
- VIN:
- 1G6KD5RS7KU133948
2019 Cadillac CT6
3.6L Premium Luxury AWD
46,213 mi
$38,401
- 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:
- 78,373
- Stock #:
- 132371
- VIN:
- 1G6KD5RS6KU132371
2019 Cadillac CT6
3.6L Premium Luxury AWD
78,373 mi
$30,872
- 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
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 54,117
- Stock #:
- 70215178
- VIN:
- 1G6KE5RS9KU129185
2019 Cadillac CT6
3.6L Premium Luxury AWD
54,117 mi
$35,497
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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: The New York, NY market leads with an average price of $46,995, indicating a premium demand in this area.
- Best Value: The Washington, DC market offers the lowest average price at $25,000, suggesting a potential opportunity for budget-conscious buyers.
- Inventory Drives Stability: The Chicago, IL market, with 18 listings, reflects a robust inventory that may help stabilize pricing in the region.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Chicago, IL | 18 | $43,822 |
| Atlanta, GA | 15 | $29,977 |
| Philadelphia, PA | 14 | $38,070 |
| Washington, DC | 14 | $25,000 |
| Boston, MA | 13 | $24,997 |
| New York, NY | 12 | $46,995 |
| Houston, TX | 10 | $36,250 |
Pricing by Trim Packages
Key Insights
- Volume Leader: The 3.6L Luxury AWD trim is the most popular with 120 listings, indicating strong consumer preference for this configuration.
- Premium Spread: The 4.2TT Platinum AWD trim, priced at $96,495, highlights a significant premium over the base trim, suggesting a niche market for high-end buyers.
- Drivetrain Effect: All trims feature AWD, which may enhance their appeal in regions with adverse weather conditions.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| 3.6L Luxury AWD | 120 | $58,995 | AWD | 3.6L 335 hp V6 |
| 3.6L Premium Luxury AWD | 84 | $74,495 | AWD | 3.6L 335 hp V6 |
| 4.2TT Platinum AWD | 2 | $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 $34,672, indicating a significant depreciation.
- Depreciation Curve: The 2017 model shows the steepest depreciation at -65.9%, reflecting the rapid decline in value for older models.
- Best Value Sweet Spot: The 2019 model, priced at an average of $27,547, represents a compelling value for buyers looking for a balance between price and features.
Model Year Pricing
| Model Year | Starting MSRP | Avg Price | Avg Price vs Starting MSRP |
|---|---|---|---|
| 2020 | $58,995 | $34,672 | -41.2% |
| 2019 | $50,495 | $27,547 | -45.4% |
| 2018 | $54,095 | $23,037 | -57.4% |
| 2017 | $53,795 | $18,362 | -65.9% |
| 2016 | $53,495 | $19,334 | -63.9% |
These recommendations are based on CarGurus' proprietary market data from September 30, 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 earns a 4/5 user rating, which points to solid owner satisfaction. With 25.8% of listings marked as good or great deals, you have some room to shop selectively rather than rushing into the first example you see.
Is the 2020 Cadillac CT6 reliable?
Owners rate it 4/5, a solid signal of long-term satisfaction. That kind of feedback suggests the car can be a reasonable used buy if you focus on maintenance history and overall condition. For long-term ownership, your biggest risk is ending up with a neglected example, so a careful pre-purchase check matters.
What should I look for when buying a used 2020 Cadillac CT6?
At 61.8% accident-free, a meaningful share of listings has prior incidents — history verification is especially important. You should run a vehicle history report, prioritize a thorough inspection, and pay close attention to bodywork, panel alignment, and signs of inconsistent repairs. It also makes sense to focus on service records and overall wear so you can separate a well-kept car from one that has simply been cleaned up for sale.
Is now a good time to buy a used 2020 Cadillac CT6?
This looks like a moderate, selective buyer’s market, so you can shop with some leverage if you’re patient and compare listings carefully.
- Deal availability: 25.8% of listings are priced as good or great deals.
- Inventory: There are 89 listings available.
- Clean inventory: 61.8% 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:
- 25.8% of listings are priced as good or great deals.
- At 61.8% 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 Cadillac CT6 makes sense if you want this model year and are willing to shop carefully for a clean, well-documented example. If price is your main priority, you may want to compare nearby years and focus on whichever one gives you the best combination of condition, history, and asking price.
These recommendations are based on CarGurus' proprietary market data from October 6, 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.
