Summary

• With 161 currently listed for sale near Baltimore, MD and an average price of $24,553.00, 54.7% of 2021 Mercedes-Benz GLBs for sale on CarGurus are rated as good or great deals.

• Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLB 5 / 5 stars.

• 100.0% of 2021 GLB models on CarGurus are accident free.

• The 2021 Mercedes-Benz GLB features an optional third row, offering flexible passenger capacity, and boasts modern technology such as the Mercedes-Benz User Experience (MBUX) infotainment system with voice control.

Why it stands out

The 2021 Mercedes-Benz GLB distinguishes itself in the luxury SUV market with its balance of style, technology, and versatility. The GLB-Class provides a spacious interior that can comfortably accommodate up to seven passengers, thanks to its optional third row which enhances its family-friendly appeal. The vehicle's turbocharged 2.0-liter inline four-cylinder engine delivers 221 horsepower, paired with an eight-speed dual-clutch automatic transmission, offering a smooth driving experience. Combining practicality with luxury, the GLB includes high-end finishes and sophisticated tech features like augmented reality navigation and a state-of-the-art infotainment system. However, it is worth noting that while the GLB shines in most areas, the third row may feel cramped for adult passengers. Overall, its impressive technology, multiple seating arrangements, and premium brand reputation make the 2021 Mercedes-Benz GLB a compelling choice for buyers looking to step into the luxury SUV segment.

Other model years to consider

• 2022 Mercedes-Benz GLB

  • Average price: $29,076.00
  • Good/great deal percentage: 60.0%
  • User rating: 4 / 5
  • Total listings: 185

• 2020 Mercedes-Benz GLB

  • Average price: $21,540.00
  • Good/great deal percentage: 39.5%
  • User rating: 4.14 / 5
  • Total listings: 86

This analysis is based on CarGurus' proprietary market data from June 23, 2026, CarGurus experts' opinions, and generative AI.