Used 2021 Mercedes-Benz GLS for Sale near Illinois
145 results
CarGurus Analysis:
2021 Mercedes-Benz GLS
With 884 currently listed for sale and an average price of $51,313.00, 36.7% 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 4.67 / 5 stars.
84.2% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class merges luxury with performance, featuring spacious seating for seven and a suite of high-tech features such as a massive infotainment screen and various driver-assistance technologies.
CarGurus Analysis: 2021 Mercedes-Benz GLS
overall
Summary
With 884 currently listed for sale and an average price of $51,313.00, 36.7% 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 4.67 / 5 stars.
84.2% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class merges luxury with performance, featuring spacious seating for seven and a suite of high-tech features such as a massive infotainment screen and various driver-assistance technologies.
Why it stands out
The 2021 Mercedes-Benz GLS-Class stands out as a pinnacle of luxury in the full-size SUV category, effortlessly combining comfort, technology, and performance. Positioned as the S-Class of SUVs, the GLS-Class offers three rows of spacious seating, catering to both families and those seeking opulence. Notable features include a class-leading infotainment system equipped with voice control capabilities, a panoramic digital display, and a range of powertrains that include a robust 603-horsepower engine in the AMG variant. While the cargo space is impressive, accommodating numerous bags and groceries, the third-row seating might feel a bit cramped for taller passengers. However, the GLS truly shines with its performance and advanced technology, making it an appealing choice for buyers wanting a luxury SUV that performs as well as it presents.
Other model years to consider
- Average price: $78,005.00
- Good/great deal percentage: 33.6%
- User rating: 5 / 5
- Total listings: 1,371
- Average price: $35,670.00
- Good/great deal percentage: 35.4%
- User rating: 5 / 5
- Total listings: 782
- Average price: $83,580.00
- Good/great deal percentage: 34.1%
- Total listings: 1,352
This analysis is based on CarGurus' proprietary market data from May 18, 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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