Used 2021 Mercedes-Benz GLS for Sale near Chicago, IL
154 results
CarGurus Analysis:
2021 Mercedes-Benz GLS
With 153 currently listed for sale near Chicago, IL and an average price of $49,019.00, 24.2% of 2021 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLS 4.93 / 5 stars.
96.1% of 2021 GLS models on CarGurus are accident-free.
The 2021 Mercedes-Benz GLS-Class excels in luxury with its spacious interior, advanced technology, and multiple powerful engine options.
CarGurus Analysis: 2021 Mercedes-Benz GLS
overall
Summary
With 153 currently listed for sale near Chicago, IL and an average price of $49,019.00, 24.2% of 2021 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLS 4.93 / 5 stars.
96.1% of 2021 GLS models on CarGurus are accident-free.
The 2021 Mercedes-Benz GLS-Class excels in luxury with its spacious interior, advanced technology, and multiple powerful engine options.
Why it stands out
The 2021 Mercedes-Benz GLS-Class stands out as a premier choice in the full-size luxury SUV market, embodying the opulence synonymous with the Mercedes brand. Positioned as the SUV equivalent of the renowned S-Class sedan, the GLS offers three rows of spacious seating that prioritize passenger comfort without compromising on technology. It boasts impressive performance with various powertrain options, including a 362-horsepower inline-six in the GLS 450 and a 603-horsepower AMG variant, ensuring buyers have options to suit their driving preferences.
Additionally, the GLS-class integrates advanced tech features, highlighted by an expansive digital dashboard and the MBUX infotainment system, which enhances user interaction through voice commands and a massive touch screen. While it excels in luxurious offerings, it's worth noting that the third row may feel somewhat cramped for taller passengers. Despite this minor limitation, the fitting build quality, sophisticated style, and high safety ratings render the GLS a compelling buy for those seeking a high-end SUV experience.
Other model years to consider
- Average price: $89,184.00
- Good/great deal percentage: 26.9%
- User rating: 5 / 5
- Total listings: 201
- Average price: $92,879.00
- Good/great deal percentage: 26.8%
- Total listings: 209
- Average price: $53,066.00
- Good/great deal percentage: 26.1%
- User rating: 5 / 5
- Total listings: 180
This analysis is based on CarGurus' proprietary market data from April 7, 2026, CarGurus experts' opinions, and generative AI.
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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.
4.7 Overall rating
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Wilber R
Reviewed a 2021 Mercedes-Benz GLS on Sep 4, 2024
Excellent car, very good finish full of attributes, spacious.
James C
Reviewed a 2021 Mercedes-Benz GLS on Dec 22, 2022
I feel that the features listed for this vehicle is good. I just didnt see one option that would have made me buy the vehicle fast. I did not see the multi contour massage feature. I wished that it would have been made clear on the listing.
Michelle A
Reviewed a 2021 Mercedes-Benz 450 4MATIC on Apr 8, 2023
Very nice ride, drives so well and well built. I love it so far!!
2021 Mercedes-Benz GLS Trims
| Trim type | MSRP |
|---|---|
| 450 4MATIC | $76,000 |
| AMG GLS 63 4MATIC AWD | $132,100 |
| 580 4MATIC | $98,850 |
| 600 Mercedes-Maybach 4MATIC | $160,500 |
2021 Mercedes-Benz GLS Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 Mercedes-Benz GLS prices has changed over time.
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