2021 Mercedes-Benz GLB-Class

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2021 Mercedes-Benz GLB-Class Review: The Suburban Dream

The luxury automakers were a bit slow getting into the urban SUV market, but they are making up for lost time in a big way. The 2021 Mercedes-Benz GLB-Class is just one of a long list of premium crossovers from the German brand, but that doesn't mean it blends into the crowd. Sporting stylish good looks, the subcompact vehicle is surprisingly practical, and it certainly doesn't lack power. Under the hood is a turbocharged 4-cylinder engine pumping out 221 horsepower, helping to hustle the premium 5-door car around town while still prioritizing comfort and luxury. The 2021 GLB-Class crossover does battle with the usual suspects in the USA, namely the BMW X1 and Audi Q3, but who is really the king in the segment?

Read in this review:

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2021 Mercedes-Benz GLB-Class Changes: 🚙What’s the difference vs 2020 GLB-Class?

Just a year into its first generation, the GLB-Class SUV receives only minor updates for the 2021 model year. Noteworthy changes include the addition of blind-spot monitoring to the standard safety suite. There is also a new AMG GLB 35, but it gets its own review.

Pros and Cons

  • Plenty of power on tap
  • Spacious cabin and cargo hold
  • Power-sliding second-row seating
  • Intuitive infotainment interface
  • Well priced for a premium vehicle
  • Acceleration from a stop could be better
  • Need to spring for extras to get the most out of it
  • Optional third-row seating is cramped

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2021 Mercedes-Benz GLB-Class Trims

See trim levels and configurations:

Trim Engine Transmission Drivetrain Price (MSRP)
GLB 250
2.0L Turbo Inline-4 Gas
8-Speed Automatic
Front-Wheel Drive
2.0L Turbo Inline-4 Gas
8-Speed Automatic
All-Wheel Drive
See All 2021 Mercedes-Benz GLB-Class Trims and Specs

2021 GLB-Class Exterior

2021 Mercedes-Benz GLB-Class Front View Mercedes-Benz
2021 Mercedes-Benz GLB-Class Rear View Mercedes-Benz
2021 Mercedes-Benz GLB-Class Front Angle View Mercedes-Benz
See All 2021 Mercedes-Benz GLB-Class Exterior Photos


  • Length 182.4 in
  • Wheelbase 111.4 in
  • Height 65.3 in
  • Max Width 72.2 in
  • Front Width 63.2 in
  • Rear Width 63.2 in
  • Curb Weight 3,638.0 lbs

Exterior Colors

  • Iridium Silver Metallic +$720
  • Mountain Grey Metallic +$720
  • Denim Blue Metallic +$720
  • Galaxy Blue Metallic +$720
  • Patagonia Red Metallic +$720
  • Cosmos Black Metallic +$720
  • Digital White Metallic +$720
  • Rose Gold Metallic +$720
  • Night Black
  • Polar White

2021 GLB-Class Performance

2021 Mercedes-Benz GLB-Class Front View Driving Mercedes-Benz
2021 Mercedes-Benz GLB-Class Front View Driving 1 Mercedes-Benz
2021 Mercedes-Benz GLB-Class Front View Driving 2 Mercedes-Benz

Engine and Transmission

  • Engine
    2.0L Turbo Inline-4 Gas
  • Transmission
    8-Speed Automatic
  • Drivetrains
    AWD, FWD

2021 GLB-Class Interior

2021 Mercedes-Benz GLB-Class Dashboard Mercedes-Benz
2021 Mercedes-Benz GLB-Class Front Seats Mercedes-Benz
2021 Mercedes-Benz GLB-Class Front Seats 1 Mercedes-Benz
See All 2021 Mercedes-Benz GLB-Class Interior Photos

Seating and Interior Space

  • Seating capacity
  • Front Leg Room 41.4 in
  • Front Head Room 40.7 in
  • Rear Leg Room 38.1 in
  • Rear Head Room 39.3 in

2021 GLB-Class Trunk and Cargo Space

2021 Mercedes-Benz GLB-Class Trunk Space Mercedes-Benz
2021 Mercedes-Benz GLB-Class Trunk Space with Seats Folded Mercedes-Benz
2021 Mercedes-Benz GLB-Class Maximum Cargo Space Mercedes-Benz

2021 GLB-Class Safety and Reliability


  • Basic:
    4 Years \ 50,000 Miles
  • Drivetrain:
    4 Years \ 50,000 Miles
  • Corrosion:
    4 Years \ 50,000 Miles
  • Roadside Assistance:
    4 Years \ 50,000 Miles

US NHTSA Crash Test Result

NHTSA safety ratings are not available at this time.

Verdict: 🏁Is the 2021 Mercedes-Benz GLB-Class a good SUV?

The Merc GLB goes up against some big names in the segment, most from its German countrymen, and being late to the party has meant that the Merc subcompact has had to work that much harder to garner attention. Luckily, Mercedes knows how to make an entrance, and the GLB hits all the right marks. Not only is it good-looking, but it's also adequately powerful, and phenomenally outfitted to go toe-to-toe with the best, and often trounce them. While you won't find an official safety rating of the 2021 Mercedes-Benz GLB-Class, we're pretty sure that it would be a good review if it were ever tested. The subcompact crossover comes standard with a comprehensive safety suite, which includes blind-spot monitoring and forward collision technology. And the German automaker has a respectable reputation for reliability.

Further impressing, the GLB is remarkably spacious on the inside, with plenty of room in the back seat and trunk area. The designers were a little too overconfident when they offered the option to slot in a third row of seats, though. These eat up trunk space and don't provide enough space for anything but really small children. The comfort and convenience features are just what you'd expect from the brand, which helps the crossover stand out from the hoi polloi and even the sporty Bimmers, which put more emphasis on performance. Top it all off with competitive pricing for the classification, and the GLB-Class seems like a recipe for success by any standard.

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