Used 2021 Mercedes-Benz GLS for Sale near Detroit, MI
146 results
CarGurus Analysis:
2021 Mercedes-Benz GLS
With 144 currently listed for sale near Detroit, MI and an average price of $60,581.00, 31.3% of 2021 Mercedes-Benz GLS vehicles for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLS 4.67 / 5 stars.
77.8% 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 spacious seating, advanced technology features, and impressive performance options.
CarGurus Analysis: 2021 Mercedes-Benz GLS
overall

Summary
With 144 currently listed for sale near Detroit, MI and an average price of $60,581.00, 31.3% of 2021 Mercedes-Benz GLS vehicles for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLS 4.67 / 5 stars.
77.8% 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 spacious seating, advanced technology features, and impressive performance options.
Why it stands out
The 2021 Mercedes-Benz GLS-Class distinguishes itself as a top contender in the luxury SUV market, embodying the style and comfort associated with the Mercedes-Benz name. This full-size SUV is equipped with three rows of spacious seating, accommodating seven passengers with ease, and ensures comfort through high-quality materials and design that align with the S-Class sedan legacy. Performance is a standout feature as well, particularly with the GLS 63 model offering a powerful 603 horsepower twin-turbo V8 engine that can accelerate from 0 to 60 mph in just 4.1 seconds, proving that a luxury SUV can also deliver thrilling performance. The inclusion of advanced technology features, such as the MBUX infotainment system and various driver-assistance technologies, further enhances its appeal. Despite the few limitations like a cramped third row and poor fuel economy, the overall luxurious experience and versatility make the 2021 GLS an attractive option for buyers seeking a premium family vehicle.
Other model years to consider
- Average price: $97,870.00
- Good/great deal percentage: 34.9%
- User rating: 5 / 5
- Total listings: 152
- Average price: $23,051.00
- Good/great deal percentage: 35.4%
- User rating: 4.8 / 5
- Total listings: 209
- Average price: $34,595.00
- Good/great deal percentage: 33.3%
- User rating: 5 / 5
- Total listings: 144
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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