Used 2020 Mercedes-Benz GLS for Sale nearDenver, CO
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 4L V8
- Exterior color:
- Silver
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 62,118
- Stock #:
- S69382
- VIN:
- 4JGFF8GE1MA371768
Sponsored by The Sharpest Rides
2021 Mercedes-Benz GLS
580 4MATIC
62,118 mi
$43,987
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 603 hp 4L V8
- Exterior color:
- Black
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 56,865
- Stock #:
- GMA303061
- VIN:
- 4JGFF8KE5MA303061
Sponsored Listing
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
56,865 mi
$66,599
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 109,503
- Stock #:
- 15256
- VIN:
- 4JGFF5KE9LA120212
Sponsored Listing
2020 Mercedes-Benz GLS
450 4MATIC
109,503 mi
$27,570
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Gray
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 54,628
- Stock #:
- 28511774
- VIN:
- 4JGFF5KE6MA388345
2021 Mercedes-Benz GLS
450 4MATIC
54,628 mi
$39,897
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Espresso Brown
- Transmission:
- 9-Speed Automatic
- Mileage:
- 103,100
- Stock #:
- VTKB230221
- VIN:
- 4JGDF6EEXKB230221
2019 Mercedes-Benz GLS
450 4MATIC
103,100 mi
$19,800
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 577 hp 5.5L V8
- Exterior color:
- Off white
- Combined gas mileage:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- 7-Speed Automatic
- Mileage:
- 65,674
- Stock #:
- 12493A
- VIN:
- 4JGDF7FE2KB220318
2019 Mercedes-Benz GLS
AMG GLS 63 4MATIC
65,674 mi
$38,619
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Iridium Silver Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 76,853
- Stock #:
- KB184804
- VIN:
- 4JGDF6EE0KB184804
2019 Mercedes-Benz GLS
450 4MATIC
76,853 mi
$24,767
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 71,572
- Stock #:
- 9687
- VIN:
- 4JGDF6EEXKB231434
2019 Mercedes-Benz GLS
450 4MATIC
71,572 mi
$25,000
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 109,503
- Stock #:
- 15256
- VIN:
- 4JGFF5KE9LA120212
2020 Mercedes-Benz GLS
450 4MATIC
109,503 mi
$27,570
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 550 hp 4L V8
- Exterior color:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- 9-Speed Automatic
- Mileage:
- 40,835
- Stock #:
- 421074
- VIN:
- 4JGFF8HB5MA421074
2021 Mercedes-Benz GLS
600 Mercedes-Maybach 4MATIC
40,835 mi
$98,879
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Iridium Silver Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black/Magma Grey
- Transmission:
- Automatic
- Mileage:
- 66,740
- Stock #:
- PC2552
- VIN:
- 4JGFF5KE9LA195430
2020 Mercedes-Benz GLS
450 4MATIC
66,740 mi
$33,750
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Espresso Brown
- Transmission:
- 9-Speed Automatic
- Mileage:
- 53,088
- Stock #:
- M455A
- VIN:
- 4JGDF6EE5KB231972
2019 Mercedes-Benz GLS
450 4MATIC
53,088 mi
$27,770
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 4L V8
- Exterior color:
- Silver
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 62,118
- Stock #:
- S69382
- VIN:
- 4JGFF8GE1MA371768
2021 Mercedes-Benz GLS
580 4MATIC
62,118 mi
$43,987
CarGurus Analysis:
2020 Mercedes-Benz GLS
With 123 currently listed for sale near Denver, CO and an average price of $38,388.00, 23.6% of 2020 Mercedes-Benz GLSs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 Mercedes-Benz GLS 5 / 5 stars.
78.0% of 2020 GLS models on CarGurus are accident free.
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 577 hp 5.5L V8
- Exterior color:
- Black
- Combined gas mileage:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- 7-Speed Automatic
- Mileage:
- 95,269
- Stock #:
- 201792
- VIN:
- 4JGDF7FE1KB201792
-$2,000
2019 Mercedes-Benz GLS
AMG GLS 63 4MATIC
95,269 mi
$35,165
$33,164
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Polar White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Macchiato/Magmagrey
- Transmission:
- Automatic
- Mileage:
- 79,031
- Stock #:
- LA201427
- VIN:
- 4JGFF5KE8LA201427
2020 Mercedes-Benz GLS
450 4MATIC
79,031 mi
$30,883
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Obsidian Black Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Macchiato/Magma Grey)
- Transmission:
- Automatic
- Mileage:
- 32,882
- Stock #:
- LA203203
- VIN:
- 4JGFF5KE7LA203203
-$1,100
2020 Mercedes-Benz GLS
450 4MATIC
32,882 mi
$39,897
$38,797
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 100,324
- Stock #:
- 191095
- VIN:
- 4JGDF6EEXKB191095
2019 Mercedes-Benz GLS
450 4MATIC
100,324 mi
$20,924
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Gray (Selenite Grey Metallic)
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Espresso Brown
- Transmission:
- Automatic
- Mileage:
- 74,901
- Stock #:
- LA097827
- VIN:
- 4JGFF5KE6LA097827
2020 Mercedes-Benz GLS
450 4MATIC
74,901 mi
$29,990
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Black
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 83,987
- Stock #:
- 913250B
- VIN:
- 4JGDF7DE4KB209579
2019 Mercedes-Benz GLS
550 4MATIC
83,987 mi
$30,176
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 47,109
- Stock #:
- 28090594
- VIN:
- 4JGDF6EEXKB228257
2019 Mercedes-Benz GLS
450 4MATIC
47,109 mi
$29,647
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Espresso Brown/Black
- Transmission:
- Automatic
- Mileage:
- 75,018
- Stock #:
- MA569253
- VIN:
- 4JGFF5KE8MA569253
2021 Mercedes-Benz GLS
450 4MATIC
75,018 mi
$34,991
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 4L V8
- Exterior color:
- Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Macchiato Beige/Magma Gray)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 45,946
- Stock #:
- 044393
- VIN:
- 4JGFF8GE6LA044393
2020 Mercedes-Benz GLS
580 4MATIC
45,946 mi
$45,686
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 577 hp 5.5L V8
- Exterior color:
- Off white
- Combined gas mileage:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- 7-Speed Automatic
- Mileage:
- 65,674
- Stock #:
- 12493A
- VIN:
- 4JGDF7FE2KB220318
Sponsored Listing
2019 Mercedes-Benz GLS
AMG GLS 63 4MATIC
65,674 mi
$38,619
CarGurus Analysis: 2020 Mercedes-Benz GLS
Summary
With 123 currently listed for sale near Denver, CO and an average price of $38,388.00, 23.6% of 2020 Mercedes-Benz GLSs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 Mercedes-Benz GLS 5 / 5 stars.
78.0% of 2020 GLS models on CarGurus are accident free.
Why it stands out
The 2020 Mercedes-Benz GLS stands out as the roomiest vehicle in the Mercedes-Benz lineup, with three rows of seating for six or seven people and up to 94 cubic feet of cargo space. It is also positioned as a midsize SUV that blends the comfort and space of the S-Class luxury sedan with some off-road capability, which gives it a broader appeal than a typical family hauler. For 2020, Mercedes moved the GLS into its second generation with a curvier exterior, a wide-screened cabin, a stretched wheelbase, and a body that was just over 2.5 inches longer.
That redesign brought meaningful gains in technology and refinement. The 2020 GLS450 used a new 3.0-liter inline-six with 362 horsepower and 369 pound-feet of torque, paired with a 48-volt mild hybrid system called EQ Boost. Mercedes said that setup improved fuel economy to an EPA-estimated 21 mpg combined, up from 18 mpg in the 2019 model. Standard equipment was generous, including dual 12.3-inch displays with MBUX, navigation, a Burmester surround sound stereo, wireless charging, nine USB-C ports, power-folding third-row seats, power-adjustable second-row seats, and 19-inch wheels. Safety and convenience features were also a highlight, with blind spot assist, 360-degree cameras, adaptive headlamps, auto high beams, parking assist, Car-to-X communication, and Exit Warning Assist all included.
The GLS also has a practical side that helps explain its appeal. Mercedes built in a seating function that automatically adjusts the seat in front when part of the second or third row is folded, making it easier to load passengers or cargo without repeated seat shuffling. At the same time, the 2020 model is not without compromises: front headroom decreased, total cargo space shrank significantly compared with the previous generation, and the AMG Line Package could impede entry and exit. Even so, the 2020 GLS remains distinctive for buyers who want a large, luxurious three-row SUV with strong standard technology and a cabin designed around comfort and flexibility.
Other model years to consider
- Average price: $67,920.00
- Good/great deal percentage: 19.6%
- User rating: 5 / 5
- Total listings: 168
- Average price: $72,938.00
- Good/great deal percentage: 21.5%
- Total listings: 163
- Average price: $20,588.00
- Good/great deal percentage: 16.4%
- User rating: 4.8 / 5
- Total listings: 146
This analysis is based on CarGurus' proprietary market data from August 18, 2026, CarGurus experts' opinions, and generative AI.
5.0 Overall rating
Filter by rating
Bonnie C
Reviewed a 2020 Mercedes-Benz GLS on Sep 21, 2024
Love all the features and it can pull my camper no problem! Beautiful car with kinetic seats that are nice when on a long drive. Love how my phone integrates into the dash screen. It’s classy for business but heavy enough to be outdoorsy as welll. Great value and you can’t go wrong with a Mercedes.
Anonymous
Reviewed a 2020 Mercedes-Benz GLS on Sep 1, 2024
I just purchased a 2020 GLS 450 with 18,000 miles on the clock and I LOVE it. Nothing beats Mercedes when it comes to quality of vehicle and service from the Mercedes team. I was able to get an extended 5 year/ 100,000 mile warranty, which to me was worth the extra money. My last Mercedes was a 2003 E 500. It was such a good car that I waited this long to replace it. That’s what you get when you buy a Mercedes.
Live L
Reviewed a 2020 Mercedes-Benz GLS on Jun 23, 2023
It’s comfortable, luxurious, worth for investment, stylish, overall beautiful vehicle
Huzaifa M
Reviewed a 2020 Mercedes-Benz GLS on Oct 9, 2022
excellent updates, new model GLS 2020 is better than any luxury SUV for many reasons on driving and interior comforts. Tech next level.
2020 Mercedes-Benz GLS Trims
| Trim type | MSRP |
|---|---|
| 450 4MATIC | $75,200 |
| 580 4MATIC | $97,800 |
2020 Mercedes-Benz GLS Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2020 Mercedes-Benz GLS prices has changed over time.
See more price trends2020 Mercedes-Benz GLS Pricing Analysis: Denver, CO Market Report
Pricing by Nearby Locations
Market Area: Denver, CO
Key Insights
- Highest Price in Fort Collins: The average price in Fort Collins ($49,580) is significantly higher than other nearby cities, indicating a potential demand for luxury vehicles in that area.
- Lowest Prices in Colorado Springs and Pueblo: Both Colorado Springs ($34,897) and Pueblo ($34,897) offer the lowest average prices, suggesting a more price-sensitive market or higher inventory turnover.
- Inventory Levels: The inventory is relatively balanced across cities, with Castle Rock (130 listings) and Longmont (127 listings) showing similar stock levels, which may contribute to stable pricing.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Fort Collins, CO | 120 | $49,580 |
| Castle Rock, CO | 130 | $38,017 |
| Longmont, CO | 127 | $38,537 |
| Colorado Springs, CO | 125 | $34,897 |
| Pueblo, CO | 125 | $34,897 |
Pricing Analysis by Model Year
Key Insights
- New Models Command Premium: The 2026 model is priced at $101,604, reflecting a 12.5% premium over its MSRP, indicating strong demand for the latest model.
- Significant Depreciation for Older Models: The 2019 model shows a steep decline, priced at $25,308, which is -63.9% compared to its original MSRP, highlighting rapid depreciation.
- Best Value in Recent Models: The 2022 model is priced at $79,599, only +1.0% above MSRP, making it a compelling option for buyers looking for a balance of price and features.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 Mercedes-Benz GLS | $90,250 | $101,604 | +12.5% |
| 2025 Mercedes-Benz GLS | $89,200 | $74,216 | -16.8% |
| 2024 Mercedes-Benz GLS | $87,000 | $68,219 | -21.5% |
| 2023 Mercedes-Benz GLS | $81,800 | $72,315 | -11.6% |
| 2022 Mercedes-Benz GLS | $77,850 | $79,599 | +1.0% |
| 2021 Mercedes-Benz GLS | $76,000 | $38,530 | -49.3% |
| 2019 Mercedes-Benz GLS | $70,150 | $25,308 | -63.9% |
| 2018 Mercedes-Benz GLS | $69,550 | $20,638 | -70.4% |
| 2017 Mercedes-Benz GLS | $67,050 | $18,224 | -72.8% |
These recommendations are based on CarGurus' proprietary market data from August 13, 2026, CarGurus experts' opinions, and generative AI.
FAQs
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