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Used 2021 Mercedes-Benz GLS for Sale near Pittsburgh, PA

170 results

CarGurus Analysis:

2021 Mercedes-Benz GLS

4.7

  • With 165 currently listed for sale near Pittsburgh, PA and an average price of $45,984.00, 37.6% 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 4.67 / 5 stars.

  • 80.6% 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 seating for seven, impressive technology integration, and a smooth, composed ride.

Research summarized using AI

 

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CarGurus Analysis: 2021 Mercedes-Benz GLS

8.3
of 10
overall
Look and feel9/10
Technology9/10
Performance9/10
Safety9/10
Form & function8/10
Cost effectiveness6/10
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Summary

  • With 165 currently listed for sale near Pittsburgh, PA and an average price of $45,984.00, 37.6% 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 4.67 / 5 stars.

  • 80.6% 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 seating for seven, impressive technology integration, and a smooth, composed ride.

Why it stands out

The 2021 Mercedes-Benz GLS-Class is often referred to as the S-Class of SUVs, and it truly lives up to this reputation with unparalleled luxury and comfort. This model features three rows of spacious seating, prioritizing comfort for all passengers. With its cutting-edge technology, including the MBUX infotainment system, the GLS ensures users have a connected and enjoyable driving experience. The wide range of available powertrains, from efficient inline-six engines to powerful V8 options, also adds to its appeal. While the GLS does have some limitations, such as a cramped third row and occasional complexities in its tech interface, these are minor drawbacks compared to its overall comfort and performance which is superb for long journeys.

Other model years to consider

  • 2024 Mercedes-Benz GLS

    • Average price: $119,900.00
    • Good/great deal percentage: 35.8%
    • User rating: 5 / 5
    • Total listings: 173
  • 2022 Mercedes-Benz GLS

    • Average price: $42,390.00
    • Good/great deal percentage: 39.8%
    • User rating: 5 / 5
    • Total listings: 161
  • 2025 Mercedes-Benz GLS

    • Average price: $81,267.00
    • Good/great deal percentage: 38.0%
    • Total listings: 171

This analysis is based on CarGurus' proprietary market data from June 2, 2026, CarGurus experts' opinions, and generative AI.

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