The $50K Mercedes that fits 7 people and still parks like a sedan
The Mercedes-Benz GLB-Class was designed to fill a gap in the automaker’s product lineup and the luxury SUV market as a whole. Although the GLA subcompact served as an entry point, its smaller cabin could feel cramped over time for growing families.
Meanwhile, the popular GLC (a Mercedes-Benz bestseller) was historically defined by its exterior curves and rear-wheel drive proportions. However, these sleeker lines often come at the expense of vertical storage and cargo flexibility.
To solve this problem, Mercedes took inspiration from its iconic G-Wagon, designing the GLB with a straight, square profile. Using a space-saving platform and square roofline, the GLB offers greater maximum cargo volume and more headroom than the larger, more expensive GLC. This design philosophy transforms the all-new 2027 GLB into a multi-tool on wheels: an easy-to-park vehicle with an optional third row for seven at a lower starting price.
- Base trim motor
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1.5-liter four-cylinder hybrid
- Base Trim Transmission
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8-speed dual-clutch transmission
- Basic transmission
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All-wheel drive
Hybrid and electrified engines
Formula 1 technology and innovations
The latest GLB uses the Mercedes-Benz Modular Architecture (MMA). As an “electric-first” platform, it allows the chassis to be configured for either an 800-volt EV battery or a hybrid powertrain. The MMA design is also the secret to the GLB’s ideal proportions, allowing it to accommodate a battery or hybrid motor while still providing enough cabin length for its signature third-row seats.
For the 2027 model year, there are two versions of the Mercedes-Benz GLB: a hybrid model and a fully electric model.
The hybrid variant features a new 1.5-liter turbocharged four-cylinder from the Mercedes-Benz FAME, or modular engine family. Paired with a 48-volt mild-hybrid system, the small turbo engine uses a combustion process based on the Miller cycle to maximize efficiency. By closing the intake valves relatively early, the engine reduces “throttling losses” and allows a higher compression ratio of 12:1. According to Mercedes-Benz, this reduces fuel consumption and emissions, especially under load conditions common in city traffic.
Among the main features of the 1.5 liter engine is an element called NANOSLIDE on the cylinder walls.
Originally developed for the Mercedes-Benz Formula 1 team, NANOSLIDE replaces cast iron cylinder liners with a thinner iron-carbon coating. Using a two-wire arc spray process, the coating is melted onto the surfaces of the aluminum cylinders and then honed to a mirror-like finish. This surface contains microscopic pores that hold oil more effectively, reducing internal friction by up to 50% for increased engine response.
The all-electric GLB models rely on an 800-volt architecture that supports DC fast charging up to 320 kW, adding about 160 miles of range in about 10 minutes. Here’s what the all-electric GLB model lineup for 2027 looks like:
- GLB250+: Single-engine long-range model producing 268 horsepower and 247 lb.-ft. of torque.
- GLB 350 4MATIC: Dual-motor version with all-wheel drive and 349 horsepower and 380 lb.-ft. of torque.
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Interior Features and Cargo Space
Longer wheelbase provides more space
The GLB comes standard with seating for five, but an optional third row increases that capacity to seven. Tall passengers and grown adults may feel squeezed into the third row, but it’s ideal for kids and their friends. Meanwhile, the second-row seats slide up to 5.5 inches to balance legroom and cargo space as needed.
For the 2027 model, Mercedes has swapped traditional leather for sustainable textiles. The comfort seats feature ARTICO leather with three-dimensional embossing, while the AMG line uses microfibers made from 65% recycled materials. This interior is further enhanced by the available Burmester 3D audio system with Dolby Atmos and the Sky Control panoramic roof, which features 158 light stars integrated into the glass.
The GLB 2027 is also 3.9 inches longer than its predecessor, with a wheelbase increased by 2.4 inches. Second-row passengers now have 39.7 inches of legroom, an improvement of 2.7 inches over the previous GLB. Up front, the driver and passenger have 41.4 inches of legroom.
While the third row is best suited for children or smaller adults, the vertical, square roofline provides 34.7 inches of headroom in the rear. In terms of cargo space, the GLB 2027 offers:
Cargo capacity (seats up):
- Five places: 19.1 cubic feet.
- Seven places: 17 cubic feet.
Cargo capacity (seats folded):
- Five places: 60.6 cubic feet.
- Seven places: 56.7 cubic feet
- What is included
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Windshield support
- Radar band detection
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X, K, Ka
The Uniden R8 is a dual-antenna radar detector with directional arrows, known for its long-range detection and false alarm filtering capabilities. Comes preloaded with red light and speed camera locations and supports firmware updates for continued performance improvements.
Next generation software: MB.OS and AI
YouTube, Disney+ and RIDEVU from Sony
The GLB 2027 uses MB.OS (or Mercedes-Benz operating system) to power the updated MBUX virtual assistant. Thanks to generative AI, it can now respond to more complex queries and conversations and remember specific contexts. For example, if you ask which coffee shops are nearby and then ask, “Which ones have drive-thru?” » the system knows that you are still referring to your initial query.
While current GLB models use two 10.25-inch screens, the 2027 GLB offers an optional MBUX Superscreen, placing three separate screens behind a single glass covering the dashboard. Among these screens is a dedicated 14-inch screen for the front passenger. On longer trips, the front passenger can use apps like YouTube, Disney+ and Sony’s RIDEVU to access a full library of content from Pixar, Marvel and more.
Google Maps integration syncs with the GLB’s safety systems to slow the SUV when approaching turns. The updated safety suite (MB.DRIVE) uses a network of sensors to enable features such as active brake assist and crosswind assist. The system also supports an exit warning feature that alerts passengers when they are about to open a door into the path of an approaching cyclist or vehicle.
The GLB’s new visibility tools include the Transparent Hood feature, which uses surround-view cameras to project a virtual image of the ground beneath the front bumper.
Pricing and availability
The all-electric 2027 GLB models, the GLB 250+ and GLB 350 4MATIC, are expected to arrive in U.S. showrooms in late 2026. Although official final pricing has not yet been announced, the 2027 GLB is expected to have a starting MSRP of around $50,000.
