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XPeng X9 vs Mercedes GLB comparison

Compare performance (503 HP vs 354 HP), boot space and price (66,500 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – XPeng X9 or Mercedes GLB?

XPeng X9 vs Mercedes GLB: Key differences

XPeng X9

  • noticeably more power
  • visibly more trunk space
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Mercedes GLB

3.6 (4 Reviews)
rate
  • substantially cheaper
  • noticeably more efficient
  • very slightly more electric range
  • only slightly quicker 0–100 km/h
  • clearly lighter
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All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

Here’s where it gets real: The technical differences in detail

X9

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mercedes GLB is substantially cheaper – starting at 43,200 £ , while the XPeng X9 costs 66,500 £ . That’s a price difference of around 23,317 £.

In terms of energy consumption, the Mercedes GLB is noticeably more efficient: consuming 15.4 kWh/100km compared to 20 kWh/100km for the XPeng X9. That’s a difference of about 4.6 kWh/100km.

As for electric range, the Mercedes GLB offers very slightly more range – reaching up to 631 km, about 16 km more than the XPeng X9.

GLB

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the XPeng X9 offers noticeably more power – delivering 503 HP compared to 354 HP. That’s roughly 149 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is only slightly quicker – completing the sprint in 5.5 s, while the XPeng X9 takes 5.9 s. That’s about 0.4 s quicker.

There’s also a difference in torque: the XPeng X9 delivers moderately more torque with 640 Nm compared to 515 Nm. That’s about 125 Nm more.

X9

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Seats: XPeng X9 offers more seats – 7 vs 5.

In terms of curb weight, Mercedes GLB is clearly lighter – 1,840 kg compared to 2,690 kg. The difference is around 850 kg.

Looking at boot space, the XPeng X9 offers visibly more boot space – 721 L compared to 540 L. That’s a difference of about 181 L.

When it comes to payload, the XPeng X9 carries slightly more – 610 kg compared to 505 kg. That’s a difference of about 105 kg.

Who wins the race in the data check?

The XPeng X9 has only a minor advantage in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £66,500
X9

XPeng X9

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 320 - 503 HP
  • Consumption kWh/100km 20 - 20.8 kWh/100km
  • Electric Range 535 - 615 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

XPeng X9

The XPeng X9 is a high-tech electric flagship that blends a roomy, upscale cabin with a sleek, modern design aimed at families and tech-minded drivers. It showcases advanced driver-assistance systems and a sophisticated infotainment setup, delivering a quietly refined and convenient driving experience.

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Reviews XPeng X9

No reviews yet. Share your experience and help others decide.

Mercedes GLB

The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.

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Reviews Mercedes GLB

3.6 (4 Reviews)
rate
Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

How do you mainly use this car? (optional): Leisure / Weekend driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Costs and Consumption
Price
66,500 - 74,200 £
Price
43,200 - 62,400 £
Consumption L/100km
-
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
20 - 20.8 kWh/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
535 - 615 km
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 - 138 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
SUV
Seats
7
Seats
5
Doors
-
Doors
-
Curb weight
2,690 - 2,750 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
721 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,988 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
575 - 610 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric, Full Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
320 - 503 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
5.9 - 8.2 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
450 - 640 Nm
Torque
280 - 515 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
235 - 370 kW
Power kW
115 - 260 kW
Engine capacity
-
Engine capacity
1,499 cm3

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A, D, E
Brand
XPeng
Brand
Mercedes-Benz
Is the XPeng X9 offered with different drivetrains?

The XPeng X9 is available as Front-Wheel Drive or All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.