Used 2021 Mercedes-Benz GLS for Sale near Arizona
111 results
CarGurus Analysis:
2021 Mercedes-Benz GLS
With 877 currently listed for sale and an average price of $50,170.00, 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.
83.5% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class is known for its high standard of luxury and impressive performance, featuring three rows of spacious seating and a variety of advanced technological features.
CarGurus Analysis: 2021 Mercedes-Benz GLS
overall

Summary
With 877 currently listed for sale and an average price of $50,170.00, 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.
83.5% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class is known for its high standard of luxury and impressive performance, featuring three rows of spacious seating and a variety of advanced technological features.
Why it stands out
The 2021 Mercedes-Benz GLS-Class is often referred to as the S-Class of SUVs, embodying a commitment to luxury and comfort that is hard to match. With spacious seating for seven and an array of high-end materials, it's designed for those who prioritize both elegance and practicality. The GLS-Class shines with multiple powertrain options, including a robust V8 engine that delivers powerful performance when needed. Its interior is fitted with the cutting-edge MBUX infotainment system, featuring a massive touchscreen and advanced voice-control capabilities. Additionally, the GLS-Class boasts a suite of safety features that enhance driving confidence and security. However, it's worth noting that while the GLS offers impressive tech and luxury, the third row can be cramped for adult passengers, and fuel economy might not meet everyone’s needs. Nonetheless, its overall blend of comfort, technology, and performance makes the 2021 GLS a standout choice in the full-size luxury SUV segment.
Other model years to consider
- Average price: $76,006.00
- Good/great deal percentage: 33.7%
- User rating: 5 / 5
- Total listings: 1,440
- Average price: $35,009.00
- Good/great deal percentage: 35.8%
- User rating: 5 / 5
- Total listings: 790
- Average price: $82,618.00
- Good/great deal percentage: 34.0%
- Total listings: 1,434
This analysis is based on CarGurus' proprietary market data from June 8, 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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