Used 2021 Mercedes-Benz GLS for Sale near Sainte-Ursule, QC

## Summary - With 58 currently listed for sale and an **average price of $66,745.00 CAD**, 29.3% of 2021 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals. - **Favourably reviewed:** Owners rated the 2021 Mercedes-Benz GLS 4.67 / 5 stars. - **100.0% of 2021 GLS models on CarGurus are accident-free**. - The 2021 Mercedes-Benz GLS-Class offers three rows of spacious seating and a host of luxury features, making it a leading choice in the full-size SUV market. ## Why it stands out The 2021 Mercedes-Benz GLS-Class defines luxury in the full-size SUV segment, connecting performance and exquisite comfort. It stands out with its spacious three-row seating configuration, accommodating up to seven passengers with ease. The GLS offers an impressive blend of advanced technology, including the MBUX infotainment system and an array of driver-assistance features designed to enhance safety and convenience. Fuel efficiency is notable in the GLS 450, which uses 12.0 L/100 km in city driving, reflecting its balance of performance and practicality. Moreover, with an expert rating of 8.33 out of 10, and luxury features such as heated front seats and a premium sound system, it showcases a commitment to quality that appeals to discerning buyers. The GLS-Class's ability to deliver a smooth and responsive driving experience is complemented by its elegant design, making it a compelling option in its class. ## Other model years to consider - **[2022 Mercedes-Benz GLS](https://www.cargurus.ca/Cars/l-Used-2022-Mercedes-Benz-GLS-c31986)** - Average price: $74,661.00 CAD - Good/great deal percentage: 41.8% - User rating: 5 / 5 - Total listings: 55 This analysis is based on CarGurus' proprietary market data from April 13, 2026, CarGurus experts' opinions, and generative AI.