Used 2021 Mercedes-Benz GLS for Sale near Houston, TX
147 results
CarGurus Analysis:
2021 Mercedes-Benz GLS
With 146 currently listed for sale near Houston, TX and an average price of $44,847.00, 28.1% 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.
99.3% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class is known for its luxury, spacious three-row seating, and impressive technology features such as the MBUX infotainment system.
CarGurus Analysis: 2021 Mercedes-Benz GLS
overall

Summary
With 146 currently listed for sale near Houston, TX and an average price of $44,847.00, 28.1% 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.
99.3% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class is known for its luxury, spacious three-row seating, and impressive technology features such as the MBUX infotainment system.
Why it stands out
The 2021 Mercedes-Benz GLS stands out in the luxury SUV market with its exceptional blend of comfort, technology, and performance. Positioned as the "S-Class of SUVs," it boasts spacious three-row seating, providing ample room for families or groups. The GLS features advanced tech integration, highlighted by the large touchscreen and intuitive MBUX system, which enhances the driving experience through voice control and a user-friendly interface. Not only does it prioritize comfort with options like massaging seats, but it also showcases strong performance capabilities, especially with its AMG variant capable of accelerating from 0 to 60 mph in just 4.1 seconds. However, it is worth noting that the GLS's third-row seating can feel cramped compared to rivals, and its fuel economy may not meet all expectations. With the 2021 model, buyers can expect a top-tier option in the burgeoning full-size luxury SUV segment.
Other model years to consider
- Average price: $77,064.00
- Good/great deal percentage: 26.6%
- User rating: 5 / 5
- Total listings: 173
- Average price: $63,019.00
- Good/great deal percentage: 29.1%
- Total listings: 179
- Average price: $51,466.00
- Good/great deal percentage: 27.6%
- User rating: 5 / 5
- Total listings: 163
This analysis is based on CarGurus' proprietary market data from April 21, 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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