Used Mercedes-Benz GLS for Sale nearFranklin, TN
617 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- 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:
- designo Diamond White Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Macchiato/Magma Grey)
- Transmission:
- Automatic
- Mileage:
- 69,224
- Stock #:
- U254077
- VIN:
- 4JGFF5KE8LA254077
Sponsored by Mercedes Benz of Music City
2020 Mercedes-Benz GLS
450 4MATIC
69,224 mi
$37,440
- Year:
- 2018
- 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:
- Brown (Tan)
- Transmission:
- Automatic
- Mileage:
- 138,408
- Stock #:
- GJB118594
- VIN:
- 4JGDF7DE7JB118594
Sponsored Listing
2018 Mercedes-Benz GLS
550 4MATIC
138,408 mi
$17,387
- Year:
- 2024
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 375 hp 3L I6
- Exterior color:
- Polar White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Macchiato Beige/Black)
- Transmission:
- Automatic
- Mileage:
- 7,172
- Stock #:
- PRB108095
- VIN:
- 4JGFF5KE0RB108095
Sponsored Listing
2024 Mercedes-Benz GLS
450 4MATIC
7,172 mi
$74,680
- 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:
- designo Diamond White Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 134,154
- Stock #:
- T40593A
- VIN:
- 4JGDF6EE9KB230002
-$1,000
2019 Mercedes-Benz GLS
450 4MATIC
134,154 mi
$18,796
$17,796
- 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:
- Mojave Silver Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 67,675
- Stock #:
- XPF8455A
- VIN:
- 4JGFF8KE4MA315850
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
67,675 mi
$56,799
- 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:
- Black
- Transmission:
- Automatic
- Mileage:
- 73,259
- Stock #:
- b229381
- VIN:
- 4JGDF6EE5KB229381
2019 Mercedes-Benz GLS
450 4MATIC
73,259 mi
$23,851
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- designo Diamond White Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Ginger Beige/Black)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 123,115
- Stock #:
- G1906-2
- VIN:
- 4JGDF6EE2HA962373
2017 Mercedes-Benz GLS
450 4MATIC
123,115 mi
$14,096
- Year:
- 2025
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 375 hp 3L I6
- Exterior color:
- Gray
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 19,197
- Stock #:
- SSB445059
- VIN:
- 4JGFF5KE7SB445059
2025 Mercedes-Benz GLS
450 4MATIC
19,197 mi
$67,796
- Year:
- 2024
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 375 hp 3L I6
- Exterior color:
- Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Bahia Brown/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 16,691
- Stock #:
- RB086004
- VIN:
- 4JGFF5KE2RB086004
2024 Mercedes-Benz GLS
450 4MATIC
16,691 mi
$62,034
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Polar White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Ginger Beige/Black)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 98,029
- Stock #:
- 90648B
- VIN:
- 4JGDF6EE0JB173929
2018 Mercedes-Benz GLS
450 4MATIC
98,029 mi
$20,497
- 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:
- Brown
- Transmission:
- Automatic
- Mileage:
- 95,561
- Stock #:
- B00515
- VIN:
- 4JGDF7DE4KB241206
-$1,000
2019 Mercedes-Benz GLS
550 4MATIC
95,561 mi
$24,848
$23,848
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Gray
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 143,372
- VIN:
- 4JGDF7DE6JB150601
2018 Mercedes-Benz GLS
550 4MATIC
143,372 mi
$18,154
- Year:
- 2024
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 375 hp 3L I6
- Exterior color:
- Obsidian Black Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Mileage:
- 18,243
- Stock #:
- 61P3284
- VIN:
- 4JGFF5KE5RB096610
2024 Mercedes-Benz GLS
450 4MATIC
18,243 mi
$72,806
Recommended model year:
2024 Mercedes-Benz GLS
Shop 2024 Mercedes-Benz GLS »With 1,433 currently listed for sale and an average price of $74,127, 38.2% of 2024 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2024 Mercedes-Benz GLS 5 / 5 stars.
93.9% of 2024 GLS models on CarGurus are accident free.
The 2024 Mercedes-Benz GLS features minor styling modifications, fresh colors and trim, enhanced off-roading technology, and a new version of its MBUX infotainment system, making it an appealing luxury vehicle.
- Year:
- 2017
- 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:
- Brown (Tan)
- Transmission:
- Automatic
- Mileage:
- 81,767
- Stock #:
- 851449
- VIN:
- 4JGDF6EE2HA851449
2017 Mercedes-Benz GLS
450 4MATIC
81,767 mi
$19,853
- Year:
- 2022
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Cirrus Silver Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Macchiato Beige/Black)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 53,121
- Stock #:
- 808224
- VIN:
- 4JGFF5KE1NA808224
2022 Mercedes-Benz GLS
450 4MATIC
53,121 mi
$45,984
- 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:
- Silver
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 70,193
- Stock #:
- P2230M
- VIN:
- 4JGDF6EE3KB239908
2019 Mercedes-Benz GLS
450 4MATIC
70,193 mi
$25,519
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- Automatic
- Mileage:
- 83,626
- Stock #:
- 13306
- VIN:
- 4JGDF6EEXHA982239
2017 Mercedes-Benz GLS
450 4MATIC
83,626 mi
$19,394
- 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:
- Mojave Silver Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Espresso Brown/Black
- Transmission:
- Automatic
- Mileage:
- 63,080
- Stock #:
- STK544506
- VIN:
- 4JGFF8KE5MA544506
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
63,080 mi
$59,039
- Year:
- 2018
- 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:
- Brown (Tan)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 59,671
- Stock #:
- 4527
- VIN:
- 4JGDF6EEXJB061557
2018 Mercedes-Benz GLS
450 4MATIC
59,671 mi
$24,792
- Year:
- 2017
- 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:
- 140,672
- Stock #:
- W4087
- VIN:
- 4JGDF6EE2HA750606
2017 Mercedes-Benz GLS
450 4MATIC
140,672 mi
$11,786
- 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:
- designo Diamond White Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Oyster
- Transmission:
- 9-Speed Automatic
- Mileage:
- 67,629
- Stock #:
- 87773
- VIN:
- 4JGFF5KEXLA187773
-$3,000
2020 Mercedes-Benz GLS
450 4MATIC
67,629 mi
$38,579
$35,579
- Year:
- 2018
- 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:
- Brown (Tan)
- Transmission:
- Automatic
- Mileage:
- 138,408
- Stock #:
- GJB118594
- VIN:
- 4JGDF7DE7JB118594
2018 Mercedes-Benz GLS
550 4MATIC
138,408 mi
$17,387
- 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:
- designo Diamond White Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Oyster
- Transmission:
- 9-Speed Automatic
- Mileage:
- 67,629
- Stock #:
- 87773
- VIN:
- 4JGFF5KEXLA187773
-$3,000
Sponsored Listing
2020 Mercedes-Benz GLS
450 4MATIC
67,629 mi
$38,579
$35,579
FAQs
How much does the Mercedes-Benz GLS cost in Franklin, TN?
Is the Mercedes-Benz GLS a good car?
How many Mercedes-Benz GLS vehicles in Franklin, TN have no reported accidents or damage?
Is the Mercedes-Benz GLS safe?
What fuel types are available?
4.7 Overall rating
Customers say
Overall, the Mercedes-Benz GLS has received strong praise from owners for its luxurious comfort, smooth ride, and impressive performance across all model years. Many drivers love the powerful engine and high-quality craftsmanship that result in a premium driving experience. However, some common concerns include the relatively poor gas mileage, higher price point, and a wish for more advanced technology features. Several reviewers also noted that the interior space could be better optimized to compete with other luxury SUVs.
AI generated from the text of customer reviews.
Filter by year
Filter by rating
What people say
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.
Anas A
Reviewed a 2017 Mercedes-Benz GLS on Apr 29, 2025
It is a good and stable car with luxury, safety and comfort that suits the family with many very wonderful safety features that I have not found anything like it to compare
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.
Wilber R
Reviewed a 2021 Mercedes-Benz GLS on Sep 4, 2024
Excellent car, very good finish full of attributes, spacious.
Mercedes-Benz GLS Trims
| Trim type | MSRP |
|---|---|
| 600 Mercedes-Maybach 4MATIC | $180,000 |
| 580 4MATIC | $116,150 |
| 450 4MATIC | $90,250 |
| AMG GLS 63 4MATIC | $151,050 |
Mercedes-Benz GLS Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of Mercedes-Benz GLS prices has changed over time.
See more price trendsMercedes-Benz GLS Pricing Analysis
Pricing Analysis by Model Year
Key Insights
- Strong Demand for Newer Models: The 2026 Mercedes-Benz GLS is priced at $101,231, reflecting a 12.1% premium over MSRP, indicating robust demand for the latest model.
- Significant Depreciation for Older Models: The 2019 model shows a steep decline, with an average price of $25,322, representing a -63.9% depreciation from its original MSRP.
- Best Value in Recent Years: The 2022 model offers the best value with an average price of $51,060, which is -34.8% below MSRP, making it an attractive option for buyers seeking a balance of price and features.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 Mercedes-Benz GLS | $90,250 | $101,231 | +12.1% |
| 2025 Mercedes-Benz GLS | $89,200 | $83,770 | -6.0% |
| 2024 Mercedes-Benz GLS | $87,000 | $78,899 | -9.3% |
| 2023 Mercedes-Benz GLS | $81,800 | $72,393 | -11.5% |
| 2022 Mercedes-Benz GLS | $77,850 | $51,060 | -34.8% |
| 2021 Mercedes-Benz GLS | $76,000 | $50,365 | -33.7% |
| 2020 Mercedes-Benz GLS | $75,200 | $36,412 | -51.6% |
| 2019 Mercedes-Benz GLS | $70,150 | $25,322 | -63.9% |
| 2018 Mercedes-Benz GLS | $69,550 | $23,211 | -66.6% |
| 2017 Mercedes-Benz GLS | $67,050 | $19,488 | -70.9% |
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Miami: The average price in Miami, FL ($68,675) is the highest, likely driven by demand for luxury vehicles in a high-income area.
- Lowest Prices in New York: Conversely, New York, NY ($46,160) offers the lowest average price, suggesting a more competitive market or higher inventory levels.
- Inventory Variation: Cities like Dallas, TX (566 listings) and Philadelphia, PA (708 listings) have substantial inventory, which may contribute to more stable pricing around the national average.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Miami, FL | 521 | $68,675 |
| Los Angeles, CA | 231 | $61,140 |
| Philadelphia, PA | 708 | $59,552 |
| Chicago, IL | 246 | $55,223 |
| Dallas, TX | 566 | $54,731 |
| Houston, TX | 525 | $50,261 |
| Atlanta, GA | 185 | $51,873 |
| Boston, MA | 616 | $52,959 |
| Washington, DC | 210 | $39,219 |
| New York, NY | 373 | $46,160 |
Pricing by Trim Packages
Key Insights
- Most Common Trim: The 450 4MATIC is the most prevalent trim with 2,767 listings, indicating strong demand for this configuration.
- Premium Pricing for High-End Trims: The 600 Mercedes-Maybach 4MATIC commands the highest MSRP at $180,000, reflecting its luxury positioning and features.
- AWD Dominance: All trims listed are AWD, highlighting a market preference for all-weather capability in luxury SUVs.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| 450 4MATIC | 2,767 | $90,250 | AWD | 3.0L 375 hp I6 |
| 580 4MATIC | 325 | $116,150 | AWD | 4.0L 510 hp V8 |
| AMG GLS 63 4MATIC | 207 | $151,050 | AWD | 4.0L 603 hp V8 |
| 600 Mercedes-Maybach 4MATIC | 150 | $180,000 | AWD | 4.0L 550 hp V8 |
These recommendations are based on CarGurus' proprietary market data from July 9, 2026, CarGurus experts' opinions, and generative AI.
CarGurus recommends the 2024 Mercedes-Benz GLS
Summary
With 1,433 currently listed for sale and an average price of $74,127, 38.2% of 2024 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2024 Mercedes-Benz GLS 5 / 5 stars.
93.9% of 2024 GLS models on CarGurus are accident free.
The 2024 Mercedes-Benz GLS features minor styling modifications, fresh colors and trim, enhanced off-roading technology, and a new version of its MBUX infotainment system, making it an appealing luxury vehicle.
Why it stands out
The 2024 Mercedes-Benz GLS stands out in the luxury SUV segment with its combination of comfort, performance, and advanced technology. This model is available in various configurations, including the GLS 450 and GLS 580, catering to different preferences and needs. The GLS 450, equipped with a turbocharged inline-six engine, delivers a smooth and powerful driving experience, while the optional AMG Line package enhances its sporty appeal. The interior is designed with high-quality materials and offers a spacious cabin, making it ideal for families. Additionally, the latest MBUX infotainment system provides an intuitive user experience, ensuring that drivers stay connected and entertained on the road.
Other model years to consider
- Average price: $81,036
- Good/great deal percentage: 37.4%
- Total listings: 1,512
- Average price: $22,583
- Good/great deal percentage: 39.2%
- User rating: 4.8 / 5
- Total listings: 988
- Average price: $68,001
- Good/great deal percentage: 38.3%
- Total listings: 1,283
These recommendations are based on CarGurus' proprietary market data from July 13, 2026, CarGurus experts' opinions, and generative AI.
Recent expert test drives
2026 Mercedes-Benz GLS
- Expert review8/10
- MSRP$90,250-$180,000
- Avg. price$110,309
- User rating0
2022 Mercedes-Benz GLS
- Expert review7/10
- MSRP$77,850-$165,100
- Avg. price$49,878
- User rating5
2024 Mercedes-Benz GLS
- Expert review9/10
- MSRP$87,000-$174,350
- Avg. price$77,183
- User rating5
Relevant articles
The Best Large SUVs for Gas Mileage in 2026
Large SUVs and great gas mileage don't tend to go hand-in-hand. That said, some models are more impressive than others. Here are our favourites, including the BMW X7 and Chevrolet Tahoe.
The Best New Cars for Old Money Style in 2026
Whether you’re looking for something classic and timeless or you just want a nice vehicle that doesn’t project extreme affluence, there are a lot of new vehicles on the market today that feel luxurious, look elegant, yet don’t attract much attention.
Mercedes-Benz GLS Buying Guide: Cost, Reliability, and the Best Years to Buy
Discover the ultimate buying guide for purchasing a used Mercedes-Benz GLS covering each generation since 2017. Whether you're a first-time buyer or a Mercedes enthusiast, this comprehensive overview will help you research your next pre-owned Mercedes-Benz GLS.
