Mercedes-Benz has revamped its popular GLB model for 2027, offering substantial upgrades in design, technology, and space. As part of its wide-ranging overhauls, the new GLB arrives with an updated lineup that blurs the boundaries between its traditional gasoline, hybrid, and fully electric versions. For the EV variant, Mercedes has discontinued the EQB branding. Instead, the electric drivetrain now fits seamlessly into the broader GLB badge, reflecting the company’s streamlined approach to naming.

Bigger, more spacious, platform-first design

The new GLB is built on a fresh platform, boasting measurements of 4.732 meters in length with an extended wheelbase. The implications of these adjustments are immediately noticeable—rear passengers enjoy significantly increased legroom, and entry to the optional third row is easier thanks to wider rear door openings. Mercedes ensures versatility by supporting either a five-seater or seven-seater configuration for both internal combustion and EV models.

According to initial impressions, the GLB takes practicality seriously even in the smaller EV market. Buyers will be pleased to know that the seven-seater version retains much of its everyday utility. The third-row seats may lack adult-grade comfort, but they’re ideal for children, offering sufficient headroom and knee space—though long trips for taller passengers are less ideal. With the third row folded flat, the five-seater version accommodates 540 liters of trunk capacity, while the seven-seater version slightly reduces this to 480 liters.

Design highlights: Cosmos Black Magno elegance

Positioned as a crossover SUV, the new GLB leans into Mercedes' signature design language while optimizing for an imposing yet practical stance. In its AMG Line trim, the GLB sports a Cosmos Black Magno matte paint finish, enhancing its sleek, stealthy appearance. Modern touches like illuminated three-pointed stars embedded in the grille, flush door handles, and more aggressive AMG-style bumpers lend the vehicle a sophisticated look that complements luxury with aggression.

LED lighting now features more prominently in the vehicle’s design, including multi-beam LED headlights and a horizontal light bar both at the front and rear. Even tiny elements, like the star motifs within the LED strips, contribute to the signature Mercedes touch. However, as the GLB is unapologetically boxy—a nod to the design of its larger GLS sibling—it prioritizes functionality and space over aerodynamics.

EV performance: specs and capabilities

Mercedes has embraced an EV-first design philosophy for the GLB’s electric drivetrain. Two battery options cater to a variety of needs: a 58 kWh pack for lighter daily commutes, or an 85 kWh option for extended road trips. On top of this, the EV operates on an 800-volt system, allowing charging speeds of up to 320 kW. This positions the GLB above competitors like the Audi Q4 e-tron, which only supports a 400-volt architecture.

This means drivers can charge the vehicle from 10% to 80% in just 22 minutes, or add approximately 260 kilometers of range in 10 quick minutes—a significant convenience for longer trips. The top-spec 350 4MATIC electric version features a dual-motor setup generating a maximum combined output of 260 kW. Drivers can expect impressive performance, with a 0-100 km/h time of 5.5 seconds and a top speed of 210 km/h (electronically limited). Despite its bulk, this electric GLB variant surprises with its towing capacity, rated at 2,000 kilograms—ideal for hauling a caravan or small trailer.

Interior and technology: redefining modern luxury

Inside, Mercedes has equipped the GLB with cutting-edge technology and high-quality materials, blending comfort with innovation. At the center of its new-age appeal are three expansive screens, including a pair of customizable 14-inch displays. The passenger option, while sold as an optional upgrade, introduces entertainment opportunities for those in the front seat, perfect for long road trips.

The interior’s ambient controls represent a modern masterstroke. Owners can choose from several "ambient styles," which correspondingly alter the cabin's lighting, the instrument cluster graphics, and even playful animations on the dashboard display. The optional Sky Control glass roof, which electronically tints or transitions to replicate a starry night, is proof of the cabin’s attention to immersive detail. Luxury materials include Artico leatherette mixed with suede-like inserts and customizable trims.

Practical features abound, too. Well-padded seats ensure long-haul comfort, while the middle bench accommodates adjustable recline angles and can slide forward to make room for passengers in the third row. On the downside, minor quibbles with certain controls, such as the finicky toggle design for window switches, might detract from an otherwise premium feel for some users.

AI and user experience: Gemini and ChatGPT integration

Mercedes takes a step further in making the GLB feel futuristic by incorporating advanced AI assistants into its infotainment system. While the interface continues to be Google-based, the integration of ChatGPT handles general conversational commands (like asking the car to adjust temperature), whereas Google's Gemini assistant focuses on navigation-related multi-step commands. This dual-AI functionality adds practical smarts, particularly for personalization and proactive recommendations. Over time, the system learns driver behavior and adjusts accordingly—suggesting departures or pre-setting climate controls based on commuting patterns.

The zero-layer interface streamlines operations further; for instance, commonly used features are layered upfront to minimize tapping through submenus. Apple CarPlay, Android Auto, and in-vehicle app downloads extend familiarity.

Soundscapes, haptics, and beyond

Mercedes acknowledges the silent nature of EVs by curating artificial sound modes—"Silver Wave," "Roaring Pulse," or "Fractal Fusion"—designed to give drivers an emotional connection to the driving experience. While some may find these sound options gimmicky, others may appreciate them as part of the digital appeal of the car. Physical control toggles have also made a return, replacing slightly unpopular touch sliders on the steering wheel.

Driving impressions: luxury with finesse

On the highway, the GLB impresses with its Level 2 driver assistance systems. The improved self-parking technology, which smoothly maneuvers and parks the vehicle without requiring user input, is one standout. Mercedes’ "Invisible Bonnet" feature, which renders the front of the car transparent for a detailed 360° off-road or terrain-ready view, further amplifies the GLB's drive versatility.

While the GLB excels on smooth roads and in urban environments, its larger footprint means handling on tighter paths may feel cumbersome. Likewise, its sharp SUV geometry reflects less focus on reducing drag efficiency, which could impact range for EV settings.

The verdict

Mercedes has given the 2027 GLB an ambitious overhaul, merging traditional SUV functionality with the latest in EV performance and AI-driven technology. With its enhanced dimensions, luxurious interiors, versatile seating configurations, and impressive charging capabilities, the GLB feels adaptive to modern family needs while future-proofing itself with its tech-forward ambitions.

However, quirks in usability (such as touch-heavy air controls or toggle switches for windows) and relatively modest levels of aerodynamics might matter to detail-focused buyers. The GLB remains a solid choice in the growing electric crossover SUV segment, standing out for its seamless blend of utility, style, and performance.

Whether running errands, taking the family on road trips, or indulging in a state-of-the-art infotainment system, the 2027 Mercedes GLB offers something for everyone—and a reason to consider this versatile machine as your next SUV.