Complete guide to the new Mercedes-Benz GLB-Class 2026 model | What’s new in the full model change?

The new GLB-Class, announced by Mercedes-Benz on December 8, 2025, marks an important turning point in the company’s compact SUV lineup. This full model change will see the release of an electric vehicle model first, integrating the existing EQB. Furthermore, a hybrid model is scheduled to be added in 2026. This article provides a detailed explanation of the new GLB-Class’s specifications, equipment, price, and release date.

1. Summary of major changes to the new GLB-Class

Highlights of the full model change

The new GLB-Class is a core model in Mercedes-Benz’s new generation compact SUV strategy, and features the following key changes:

Major changes:

Market positioning

The GLB class is planned as a model positioned between the compact “GLA class” and the mid-size “GLC class,” and its main feature is its three-row seating, which is targeted particularly at families. The new model is designed to be longer than the GLC class, realizing an interior space that exceeds its class.

2. Evolution of exterior design

Front design: a fusion of strength and innovation

The front design of the new GLB-Class adopts Mercedes-Benz’s latest design language and is a significant evolution from the previous model.

Front design features:

• Large grille : The large, imposing grille creates a powerful impression.
• Three-pointed star motif headlights : A unique design incorporating the brand icon
• Full-wide light bar : The horizontal light bar connecting the headlights is cutting-edge
• Complex DRL pattern : intricate star-shaped daytime running lights

Rear design: controversial and innovative styling

The rear design has undergone particularly bold changes that may be controversial.

Rear design features:

• Vertical taillight cluster : design inspired by the EQXX concept from a few years ago
• Full-width light bar : A thin light bar that spans the entire rear.
• Star pattern incorporated : Like the front, it uses a three-pointed star motif.
• Flush door handles : Retract while driving for improved aerodynamics

Overall design evaluation

Carcoops commented that “It’s not a particularly handsome SUV, but the previous model was the same,” and it can be said that the design approach emphasizes functionality and advanced technology. Although tastes are divided, it clearly shows the transition to a new generation of Mercedes-Benz design.

3. Significant increase in body size

Detailed body size comparison

The new GLB-Class is larger in all dimensions compared to the previous model and the EQB.

New GLB-Class (2026 model):

• Overall length: 4,732 mm (186.3 in)
• Overall width: 1,861 mm (73.3 in)
• Overall height: 1,687 mm (66.4 inches)
• Wheelbase: 2,889 mm (113.7 in)
• Minimum turning radius: 11.9 m (39.0 ft)

Previous model GLB-Class:

• Overall length: 4,640mm
• Overall width: 1,835mm
• Overall height: 1,700mm
• Wheelbase: 2,830mm
• Minimum turning radius: 11.7m

Previous model EQB:

• Total length: 4,684mm
• Overall width: 1,834mm
• Overall height: 1,701mm
• Wheelbase: 2,829mm

The impact of size expansion

merit:

• Overall length +98mm : Significant improvement in legroom, especially in the second and third rows
• Wheelbase +60mm : Improved ride comfort and increased interior space
• Overall width +27mm : Increased lateral clearance

Cons:

• Minimum turning radius +0.2m : Slightly reduced maneuverability
• Overall height -14mm : Slightly lowered due to emphasis on design, but the impact on practical use is minor

Comparison with the top model GLC class

Interestingly, the new GLB-Class’ overall length of 4,732 mm exceeds that of the higher-end GLC-Class (4,720 mm), making the GLB-Class extremely spacious for a compact SUV.

4. Interior and latest technology

Mercedes Superscreen: the industry’s most advanced display system

The most notable feature of the interior of the new GLB-Class is the optional Mercedes Super Screen.

Super Screen configuration:

• Driver display : 10.25 inches
• Center infotainment screen : 14 inches
• Passenger display : 14 inches
• Total: 3 screens for overwhelming information display capabilities

4th Generation MBUX System: AI Integration

The new GLB-Class is equipped with Mercedes-Benz’s latest infotainment system, the fourth-generation MBUX.

MBUX system features:

• ChatGPT4o-based Virtual Assistant : Control the system with natural conversation
• Microsoft & Google AI integration : Advanced speech recognition and learning capabilities
• Powered by Unity Game Engine : Smooth and intuitive user interface
• OTA (over-the-air) update support : Always keep the software up to date

Panoramic Glass Roof: Starlight Experience

Features:

• Dimmable : Changes from transparent to opaque with the touch of a button
• 158 star design : Design that is linked to the three-pointed star on the exterior
• Lighting function : Stars shine at night

Seat layout and luggage space

Seat configuration:

• Five-seater, two-row seating
• 7-seater, 3-row seating

Luggage capacity:

• 5-seater model : 540L under normal conditions, maximum 1,715L (with rear seats folded)
• 7-seater model : 480L under normal conditions, maximum 1,605L (with rear seats folded)
• Front trunk (EV only) : 127 L (4.5 cu ft)

The EV model has a frunk (front trunk) added to the front section where the engine is not installed, further improving practicality.

Interior design evaluation

The dashboard, like all new Mercedes models, is almost completely flat, with few interesting design elements thanks to a minimalistic approach centred around a large display.

5. Powertrain and specifications

Electric vehicle model: two power levels

The new GLB-Class will initially be launched as an all-electric model.

GLB 250+ (with EQ Technology)

Specs:

• Motor placement : 1 rear
• Battery capacity : 85kWh (lithium ion)
• Electrical architecture : 800V
• Output : 272ps (268hp)
• Continuous torque : 247 lb-ft (335 Nm)
• Maximum torque (short-term boost) : 335 lb-ft (454 Nm)
• Transmission : 2-speed, dedicated to electric vehicles
• 0-100km/h acceleration : 7.4 seconds
• Range : 630 km (392 miles, WLTP)
• Drive system : RWD (rear-wheel drive)

GLB 350 4Matic (with EQ Technology)

Specs:

• Motor layout : one each at the front and rear (dual motors)
• Front motor output : 109ps
• Rear motor output : 272ps
• Total system output : 349 hp (381 hp)
• Total torque : 380 lb-ft (515 Nm)
• Battery capacity : 85kWh
• Transmission : 2-speed, dedicated to electric vehicles
• 0-100km/h acceleration : 5.5 seconds
• Range : 615 km (382 miles, WLTP)
• Drive system : AWD (4Matic)

Advantages of a two-speed transmission

The new GLB-Class’s dedicated two-speed electric transmission offers the following benefits:

• Powerful acceleration from a standing start : Maximum torque is efficiently transmitted in first gear
• High-speed cruising efficiency : Second gear reduces RPMs to extend range
• Overall efficiency improvement : Optimized for a wider range of scenarios than a single-speed transmission

Powertrains scheduled to be added in 2026

Entry-level EV model

Mercedes-Benz has confirmed that it will add a more affordable entry-level electric vehicle model in 2026. While detailed specifications have yet to be released, the move is a strategy to reach a wider customer base.

Hybrid model (48V mild hybrid)

Engine specs:

• Engine : Inline 4-cylinder 1.5L gasoline turbo (Miller cycle)
• Engine power : 3 types of tuning
  
  • 136ps
  • 163ps
  • 190ps
• Motor output : 27ps (48V mild hybrid)
• Transmission : 8-speed dual clutch (DCT)
• Drive system : FF (front-wheel drive) or 4WD (four-wheel drive)

The hybrid model is available in both front- and rear-wheel drive configurations and is available in three power levels. The newly developed 1.5L Miller cycle engine replaces the previous 1.4L engine as a highly efficient power unit, achieving fuel economy comparable to that of a diesel engine.

6. Driving range and charging performance

Excellent range

The new GLB-Class EV model achieves a practical driving range thanks to its large-capacity 85kWh battery.

Range (WLTP):

• GLB 250+ (RWD): 630 km (392 miles)
• GLB 350 4Matic (AWD): 615 km (382 miles)

These figures are sufficient for everyday use as well as long weekend drives, and are very competitive figures in the compact SUV segment.

Fast charging performance

The adoption of an 800V electrical architecture gives the new GLB-Class industry-leading charging performance.

Charging performance:

• Maximum charging output : 320kW (when fast charging is supported)
• Driving distance with 10 minutes of charging : 260km
• Significantly reduced charging time : a significant improvement over the previous generation EQB

Improved practicality

The ability to travel 260km with a 10-minute charge means that a practical charge can be completed in the time it takes to rest at a service area on the highway, significantly reducing the stress of charging during long-distance travel.

7. Fuel efficiency

Hybrid model fuel economy

New GLB-Class Hybrid model:

• Estimated fuel economy: 15.5km/L (WLTC mode estimated value)

The combination of a newly developed 1.5L Miller cycle engine and a 48V mild hybrid system delivers excellent fuel economy comparable to that of conventional diesel models.

Reference: Fuel economy of previous model

• 1.4L gasoline (FF): 13.4km/L
• 2.0L Diesel (4WD): 15.8km/L

The new hybrid model will continue to offer excellent fuel economy even after the diesel model is discontinued.

Elimination of plug-in hybrids

It’s worth noting that the plug-in hybrid model has been discontinued in the new GLB-Class, indicating that Mercedes-Benz is looking ahead to a full transition to electric vehicles and has adopted a two-pronged strategy of a full-fledged EV and an efficient mild hybrid rather than a half-hearted PHEV.

8. Safety equipment and driver assistance systems

Comprehensive Sensor System

The new GLB-Class comes equipped with the latest generation of driver assistance systems as standard or as an option.

Sensor Configuration:

• Cameras : 8
• Radar sensors : 5 units
• Ultrasonic sensors : 12

This group of sensors enables highly accurate 360-degree monitoring of the vehicle’s surroundings, providing appropriate driving assistance in a variety of situations.

MB.DRIVE driving assistance system

System Features:

• Water-cooled high-performance computer : Processing large amounts of sensor data in real time
• OTA (over-the-air) update support : Always updated with the latest features and algorithms
• AI learning function : Learns the driver’s driving patterns and provides optimal assistance

Major safety features (expected)

In keeping with the latest Mercedes-Benz models, we can expect the following features:

• Active Distance Assist Distronic : All-speed adaptive cruise control
• Active Steering Assist : Lane Keeping Assist
• Active Brake Assist : Collision avoidance and damage mitigation braking
• Blind Spot Assist : Detects vehicles in blind spots
• Active Lane Change Assist : Semi-automatic lane changes
• Parking Assist Package : 360-degree camera and automatic parking function
• Traffic Sign Assist : Traffic sign recognition
• Attention Assist : Driver Fatigue Detection

These systems enable the new GLB-Class to combine high levels of safety and comfort.

9. Price and grade structure

German market price (confirmed)

Mercedes-Benz has announced the following prices for the German market:

German price:

• GLB 250+ with EQ Technology : €59,048 (approximately 9.9 million yen)
• GLB 350 4Matic with EQ Technology : €62,178 (approximately 10.4 million yen)

Japanese market forecast price

Pricing for the Japanese market has not yet been officially announced, but is expected to be as follows:

Estimated price (Japan):

• Internal combustion engine model (entry grade) : from 6.6 million yen
• EV model (GLB 250+) : From 8.4 million yen
• EV model (GLB 350 4Matic) : From 9.2 million yen
• Hybrid model (mid-range) : 7.2 million to 7.8 million yen

Reference: Japanese price of previous model GLB class

• GLB 180: 6.44 million yen
• GLB 200 d 4MATIC: 6.97 million yen
• AMG GLB 35 4MATIC: 9.35 million yen

Reasons for the price increase

The price increase for the new GLB-Class is due to the following factors:

1. Adoption of new generation platforms : Increased development costs
2. 800V Electrical Architecture : Advanced Electrification Technology
3. Latest MBUX system : Advanced technologies such as AI integration
4. Large display systems : the cost of the Mercedes Superscreen
5. Increasing body size : Increased material and manufacturing costs

However, considering the significant improvement in equipment, the cost performance can be said to be reasonable.

10. Release Date and Market Development

European Market

Announcement date : December 8, 2025
Delivery start : Spring 2026 (major European markets including Germany)

Japanese market

The release date in Japan has not been officially announced, but it is expected to be introduced several months after deliveries begin in the European market.

Expected schedule:

• Official announcement : Summer 2026
• Reservations start : Autumn 2026
• Delivery start : Late 2026 to early 2027

North American Market

According to a Carcoops article, pricing for the US market has not yet been announced, but it is expected to be in a similar price range to Germany.

Model deployment timeline

Spring 2026 : EV model (GLB 250+, GLB 350 4Matic)
Late 2026 : Entry-level EV model added
2026-2027 : Hybrid model (3 output levels, FF/AWD)

Summary: Evaluation and outlook for the new GLB-Class

Key points of evolution

Final evaluation

The new Mercedes-Benz GLB-Class is an attractive model in the compact SUV segment, combining practicality and modernity at a high level. The introduction of electrification technology and the latest infotainment systems will ensure that the car will remain competitive for years to come.

However, design preferences may differ, and the price is not cheap. If you are considering purchasing one, we recommend checking out the actual car and experiencing the rear design and usability of the large display system for yourself.

Mercedes-Benz intends to further increase its presence in the compact SUV market through the new GLB-Class. Attention will be focused on how the car will be received in the market and on sales trends going forward.