GLB

Released 2026

The second-generation GLB (X244), a boxy seven-seat compact SUV sold both as an 800 V electric car and as a 1.5-litre petrol hybrid, suited to families who want seven seats in a car under 4.8 metres long.

Body: SUV
Powertrain: Electric, Hybrid
Power: 154–349 bhp
Range: 360–380 mi
Boot: 540 l

Seven seats

What reviewers say

Reviewers, who mostly drove the electric version, agree the new GLB is comfortable, quiet and more practical than before, with a third row fit for children and smaller adults and a strong real-world range. The common criticism is a small boot with all seven seats up; Auto Express found it heavy and prone to lean in corners, and Parkers disliked the upright touchscreen.

From autocar.co.uk, parkers.co.uk, autoexpress.co.uk and carwow.co.uk

Specifications

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Performance

Powertrain: Electric, Hybrid
Power: 154–349 bhp
0–62 mph: 5.5–9.7 s
Top speed: 121–132 mph
Engine or motors: Electric: 200 kW (272 hp) GLB 250+ or 260 kW GLB 350 4MATIC, with a 2-speed transmission on the rear axle. Hybrid: 1,499 cc four-cylinder petrol of 100, 120 or 140 kW plus a 22 kW electric motor and 1.3 kWh battery; combined system output 115, 135 or 155 kW (bhp converted from Mercedes' kW figures)
Torque: 335 Nm (GLB 250+), 515 Nm (GLB 350 4MATIC); hybrid system torque 280 Nm (GLB 180), 330 Nm (GLB 200), 380 Nm (GLB 220 4MATIC)
Gearbox: 2-speed automatic (electric); 8G-eDCT 8-speed dual-clutch (hybrid)
Drive: Rear-wheel drive (GLB 250+); all-wheel drive (4MATIC); front-wheel drive (GLB 180, GLB 200)

Range and charging

Zero-emission range (WLTP): 360–380 miles
Battery: 85 kWh
Fastest charging: 320 kW
Economy (WLTP): 45.6–47.9 mpg
Range detail: WLTP electric range 380 miles (GLB 250+, Mercedes UK technical data; 352–379 miles in the UK brochure) and 342–360 miles (GLB 350 4MATIC, UK brochure); 225–260 km added in 10 minutes of DC charging (GLB 250+)
Charging: 85 kWh usable battery; DC up to 320 kW (10–80% in 22 minutes); 11 kW AC (0–100% in 9 hours; 13.75 hours at 7 kW)
Efficiency: 16.4 kWh/100 km (GLB 250+); 47.9 mpg (GLB 180), 47.1 mpg (GLB 200), 45.6 mpg (GLB 220 4MATIC), WLTP combined
CO2 emissions: 0 g/km (electric); 134–142 g/km (hybrid)

Practicality

Body: SUV
Seats: 7
Boot: 540 litres
Length: 4,732 mm
Width: 1,861 mm
Weight: From 1,910 kg
Boot: 540 litres (Mercedes UK technical data); the UK brochure lists 480–1,605 litres and a 127-litre front boot on the electric versions
Towing: 1,500 kg braked (GLB 250+), 2,000 kg (GLB 350 4MATIC); 1,600–2,000 kg (hybrid); 750 kg unbraked
Size: 4,732 mm long, 1,861 mm wide without mirrors (2,029 mm with), 1,687 mm high (electric) or 1,681 mm (hybrid); 11.2 m (electric) or 11.9 m (hybrid) turning circle; kerb weight 2,270 kg (GLB 250+), 1,910–1,975 kg (hybrid)

Tech and safety

Warranty: Battery: 8 years or 100,000 miles, 70% capacity

Pros and cons

Pros

Seven seats as standard
GLB 250+ has a WLTP range of 380 miles
DC charging up to 320 kW on the electric versions; 10–80% in 22 minutes

Cons

Electric versions weigh 2,200 kg or more
Top speed limited to 130 mph on the electric models
GLB 180 hybrid takes 9.7 seconds to reach 62 mph

Closest rivals

Model	Body	Powertrain	Power	Range	Boot	Released
ToyotaRAV4	SUV	Plug-in hybrid	268–305 bhp	83–85 mi	672 l	May 2026
AudiQ7	SUV	Mild hybrid	295 bhp	–	722 l	Jun 2026
AudiQ5	SUV	Mild hybrid, Plug-in hybrid	201–362 bhp	66 mi	520 l	Sept 2024

Sources

Photo: media.oneweb.mercedes-benz.com

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