Used 2020 Mercedes-Benz GLS for Sale near Boise, ID

## Summary - With 765 currently listed for sale on CarGurus and an **average price of $35,556.00**, 34.8% of 2020 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2020 Mercedes-Benz GLS 4.83 / 5 stars. - **75.6% of 2020 GLS models on CarGurus are accident free**. - The 2020 Mercedes-Benz GLS combines the luxury and comfort of the S-Class with a practical design suitable for families, offering three rows of seating and up to 94 cubic feet of cargo space. ## Why it stands out The 2020 Mercedes-Benz GLS stands out for its spacious interior and variety of high-end features that cater to both family needs and luxury expectations. With three rows of seating for up to seven passengers, it offers an exceptional balance of comfort and usability, making long journeys enjoyable. Noteworthy improvements include enhancements in performance, safety features, and technology, further elevating the driving experience. Powerful engine options and a refined air suspension system contribute to an impressive ride quality. However, some users have pointed out that the access to the third row can be cumbersome, and the touch-sensing controls may not be to everyone's liking. ## Other model years to consider - **[2021 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2021-Mercedes-Benz-GLS-c29893)** - Average price: $53,258.00 - Good/great deal percentage: 33.9% - User rating: 4.93 / 5 - Total listings: 915 - **[2022 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2022-Mercedes-Benz-GLS-c31986)** - Average price: $50,650.00 - Good/great deal percentage: 33.4% - User rating: 5 / 5 - Total listings: 979 - **[2019 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2019-Mercedes-Benz-GLS-c28644)** - Average price: $24,771.00 - Good/great deal percentage: 32.1% - User rating: 4.7 / 5 - Total listings: 817 This analysis is based on CarGurus' proprietary market data from February 10, 2026, CarGurus experts' opinions, and generative AI.