Used 2021 Mercedes-Benz GLS for Sale near Millville, NB

## Summary - With 73 currently listed for sale and an **average price of $68,154.00 CAD**, 37.0% 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 brings a new level of luxury to full-size SUVs and offers spacious three-row seating with impressive performance. ## Why it stands out The 2021 Mercedes-Benz GLS is often hailed as the S-Class of SUVs, designed for those seeking a blend of luxury, performance, and practicality. The GLS is equipped with a captivating blend of technology and comfort, featuring a state-of-the-art MBUX infotainment system that is easily navigated through a large touchscreen interface. With its 362 horsepower twin-turbocharged 3.0-litre inline-six engine, the GLS 450 balances robust performance with fuel efficiency, making it suitable for various driving conditions. Moreover, the GLS’s three rows of seating can accommodate up to seven passengers comfortably, allowing for generous headroom and cargo space — with 355 litres behind the third row. Safety is paramount, with a suite of driver-assistance features standard across the model, making it a top contender among full-size luxury SUVs. ## Other model years to consider - **[2022 Mercedes-Benz GLS](https://www.cargurus.ca/Cars/l-Used-2022-Mercedes-Benz-GLS-c31986)** - Average price: $70,121.00 CAD - Good/great deal percentage: 40.0% - User rating: 5 / 5 - Total listings: 65 - **[2024 Mercedes-Benz GLS](https://www.cargurus.ca/Cars/l-Used-2024-Mercedes-Benz-GLS-c32834)** - Average price: $107,125.00 CAD - Good/great deal percentage: 19.6% - User rating: 5 / 5 - Total listings: 51 This analysis is based on CarGurus' proprietary market data from May 4, 2026, CarGurus experts' opinions, and generative AI.