Used 2020 Mercedes-Benz GLS for Sale near Philadelphia, PA

## Summary - With 175 currently listed for sale near Philadelphia, PA and an **average price of $37,043.00**, 21.1% 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. - **84.6% of 2020 GLS models on CarGurus are accident free**. - The 2020 Mercedes-Benz GLS provides three rows of seating for up to seven people, up to 94 cubic feet of cargo space, and combines luxury features with a modicum of off-road capability. ## Why it stands out The 2020 Mercedes-Benz GLS stands out as the roomiest SUV in the Mercedes-Benz family, offering a unique blend of luxury, space, and practicality ideal for families. This model delivers comfort reminiscent of the S-Class sedans while incorporating features that appeal to adventurous buyers seeking a touch of off-road capability. A distinctive element of the 2020 GLS is its advancement in technology and safety, including standard adaptive safety features, navigation systems, and a host of comfort enhancements such as power-folding seats and a state-of-the-art infotainment system. Moreover, the GLS boasts a stylish exterior replete with smooth, curvier lines that align with Mercedes’ design ethos. Although it may not have the absolute highest performance specs in the market, the GLS maintains a well-rounded appeal thanks to its high rating in user satisfaction and reliability. ## Other model years to consider - **[2021 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2021-Mercedes-Benz-GLS-Philadelphia-c29893_L30895)** - Average price: $49,194.00 - Good/great deal percentage: 27.7% - User rating: 4.93 / 5 - Total listings: 188 - **[2024 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2024-Mercedes-Benz-GLS-Philadelphia-c32834_L30895)** - Average price: $80,306.00 - Good/great deal percentage: 20.3% - User rating: 5 / 5 - Total listings: 182 - **[2019 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2019-Mercedes-Benz-GLS-Philadelphia-c28644_L30895)** - Average price: $24,825.00 - Good/great deal percentage: 20.5% - User rating: 4.7 / 5 - Total listings: 200 This analysis is based on CarGurus' proprietary market data from March 19, 2026, CarGurus experts' opinions, and generative AI.