Used 2021 Mercedes-Benz GLS for Sale near Tolland, CT
174 results
CarGurus Analysis:
2021 Mercedes-Benz GLS
With 872 currently listed for sale and an average price of $50,262.00, 32.0% 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.
83.7% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class brings a new level of luxury to full-size SUVs, offering three rows of spacious seating and a suite of impressive technology features.
CarGurus Analysis: 2021 Mercedes-Benz GLS
overall

Summary
With 872 currently listed for sale and an average price of $50,262.00, 32.0% 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.
83.7% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class brings a new level of luxury to full-size SUVs, offering three rows of spacious seating and a suite of impressive technology features.
Why it stands out
The 2021 Mercedes-Benz GLS sets itself apart in the competitive luxury SUV market by combining exquisite comfort, cutting-edge technology, and powerful performance. Positioned as the "S-Class of SUVs," it offers three rows of spacious seating that cater to families and luxury seekers alike, which is complemented by a tech-rich interior featuring a massive digital dashboard. The GLS is available with multiple powertrain options including a high-performance AMG variant, appealing to those who desire versatility and driving excitement. While it may have a cramped third row and slightly poor fuel economy, the GLS compensates with its outstanding ride quality and a plethora of luxury features. Expert reviewers have highlighted its higher standard of luxury compared to rivals, making it a compelling option for affluent buyers looking for an elegant family hauler or a status symbol.
Other model years to consider
- Average price: $76,457.00
- Good/great deal percentage: 32.3%
- User rating: 5 / 5
- Total listings: 1,398
- Average price: $82,746.00
- Good/great deal percentage: 33.4%
- Total listings: 1,353
- Average price: $35,160.00
- Good/great deal percentage: 33.7%
- User rating: 5 / 5
- Total listings: 793
This analysis is based on CarGurus' proprietary market data from June 1, 2026, CarGurus experts' opinions, and generative AI.
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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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