Used 2021 Mercedes-Benz GLS for Sale near Arizona

## Summary - With 906 currently listed for sale on CarGurus and an **average price of $53,335.00**, 33.0% 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 4.93 / 5 stars. - **82.3% 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 three-row seating and excellent performance options. ## Why it stands out The 2021 Mercedes-Benz GLS-Class stands out as a high-performing luxury SUV that seamlessly merges style and comfort. This model year continued the tradition of the GLS as the company's full-size luxury SUV, designed to compete with rivals like the Cadillac Escalade and BMW X7. Noteworthy features this year include a stunning and tech-reliant interior, spacious three-row seating that caters to families, and a range of robust powertrains, including a performance-oriented AMG variant. While it excels in design and comfort, the cramped third-row seating and slightly unintuitive technology controls may pose challenges for some buyers, but overall, the GLS maintains a reputation for luxury and driving pleasure. ## Other model years to consider - **[2024 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2024-Mercedes-Benz-GLS-c32834)** - Average price: $79,636.00 - Good/great deal percentage: 34.3% - User rating: 5 / 5 - Total listings: 1,255 - **[2025 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2025-Mercedes-Benz-GLS-c33471)** - Average price: $86,816.00 - Good/great deal percentage: 33.5% - Total listings: 1,129 - **[2019 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2019-Mercedes-Benz-GLS-c28644)** - Average price: $24,791.00 - Good/great deal percentage: 34.5% - User rating: 4.7 / 5 - Total listings: 821 This analysis is based on CarGurus' proprietary market data from February 9, 2026, CarGurus experts' opinions, and generative AI.