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Mercedes GLB vs XPeng G9 - Differences and prices compared

Compare performance (320 HP vs 575 HP), boot space and price (40500 £ vs 51100 £) at a glance. Find out which car is the better choice for you – Mercedes GLB or XPeng G9?

Mercedes GLB

XPeng G9

4.6 (3 Reviews)
rate

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

GLB

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes GLB has a clearly perceptible advantage in terms of price – it starts at 40500 £, while the XPeng G9 costs 51100 £. That’s a price difference of around 10576 £.

G9

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the XPeng G9 has a decisively edge – offering 575 HP compared to 320 HP. That’s roughly 255 HP more horsepower.

In acceleration from 0 to 100 km/h, the XPeng G9 is noticeable quicker – completing the sprint in 4.20 s, while the Mercedes GLB takes 5.50 s. That’s about 1.30 s faster.

In terms of top speed, the Mercedes GLB performs slightly better – reaching 250 km/h, while the XPeng G9 tops out at 200 km/h. The difference is around 50 km/h.

There’s also a difference in torque: XPeng G9 pulls convincingly stronger with 695 Nm compared to 400 Nm. That’s about 295 Nm difference.

GLB

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In curb weight, Mercedes GLB is evident lighter – 1640 kg compared to 2210 kg. The difference is around 570 kg.

In terms of boot space, the XPeng G9 offers somewhat more room – 660 L compared to 570 L. That’s a difference of about 90 L.

In maximum load capacity, the Mercedes GLB performs slightly better – up to 1805 L, which is about 229 L more than the XPeng G9.

Who wins the race?

The XPeng G9 proves to be wins the duel decisively and therefore becomes our DriveDuel Champion!
XPeng G9 is the better all-rounder in this comparison.

from about £51,100
G9

XPeng G9

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 351 - 575 HP
  • Consumption kWh/100km : 18.4 - 20.1 kWh
  • Electric Range : 502 - 585 km
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Mercedes GLB
XPeng G9

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLB

The Mercedes GLB is a practical compact SUV that mixes boxy, family-friendly space with premium German polish, making it an appealing choice for buyers who want usefulness without pretension. It drives with a confident, composed feel and somehow manages to look both rugged and refined — the grown-up SUV that still likes to have fun.

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XPeng G9

4.6 (3 Reviews)
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The XPeng G9 feels like a confident leap into the electric SUV world, with sleek, purposeful styling and an interior that mixes modern tech with everyday comfort. On the road it’s calm and composed, serving up effortless pace and hushed refinement that turns long commutes into something you might actually enjoy — a strong pick for buyers who want electric convenience without compromise.

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Reviews Mercedes GLB

Reviews XPeng G9

4.6 (3 Reviews)
rate

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Costs and Consumption
Price
40500 - 65300 £
Price
51100 - 62200 £
Consumption L/100km
5.6 - 9 L
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
18.4 - 20.1 kWh
Electric Range
-
Electric Range
502 - 585 km
Battery Capacity
-
Battery Capacity
78.2 - 92.2 kWh
co2
146 - 204 g/km
co2
0 g/km
Fuel tank capacity
52 - 60 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1640 - 1820 kg
Curb weight
2210 - 2395 kg
Trunk capacity
565 - 570 L
Trunk capacity
660 L
Length
4634 - 4650 mm
Length
4891 mm
Width
1834 - 1850 mm
Width
1937 mm
Height
1665 - 1692 mm
Height
1670 - 1680 mm
Max trunk capacity
1800 - 1805 L
Max trunk capacity
1576 L
Payload
500 kg
Payload
-

Engine and Performance
Engine Type
Petrol MHEV, Diesel
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
116 - 320 HP
Power HP
351 - 575 HP
Acceleration 0-100km/h
5.5 - 11.5 s
Acceleration 0-100km/h
4.2 - 6.6 s
Max Speed
188 - 250 km/h
Max Speed
200 km/h
Torque
230 - 400 Nm
Torque
465 - 695 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 235 kW
Power kW
258 - 423 kW
Engine capacity
1332 - 1991 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
E, F, G
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
XPeng

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What drivetrain options does the Mercedes GLB have?

Available configurations include Front-Wheel Drive or All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.