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Mercedes GLB vs XPeng G9 comparison

Compare performance (354 HP vs 575 HP), boot space and price (43,200 £ vs 51,100 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or XPeng G9?

Mercedes GLB vs XPeng G9: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • moderately cheaper
  • a bit more efficient
  • only slightly more electric range
  • markedly lighter
details

XPeng G9

4.7 (4 Reviews)
rate
  • clearly more power
  • markedly quicker 0–100 km/h
  • somewhat more trunk space
details

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

GLB

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mercedes GLB is moderately cheaper – starting at 43,200 £ , while the XPeng G9 costs 51,100 £ . That’s a price difference of around 7,888 £.

In terms of energy consumption, the Mercedes GLB is a bit more efficient: consuming 15.4 kWh/100km compared to 18.4 kWh/100km for the XPeng G9. That’s a difference of about 3 kWh/100km.

As for electric range, the Mercedes GLB offers only slightly more range – reaching up to 631 km, about 46 km more than the XPeng G9.

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 offers clearly more power – delivering 575 HP compared to 354 HP. That’s roughly 221 HP more horsepower.

When accelerating from 0 to 100 km/h, the XPeng G9 is markedly quicker – completing the sprint in 4.2 s, while the Mercedes GLB takes 5.5 s. That’s about 1.3 s quicker.

There’s also a difference in torque: the XPeng G9 delivers visibly more torque with 695 Nm compared to 515 Nm. That’s about 180 Nm more.

GLB

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes GLB is markedly lighter – 1,840 kg compared to 2,210 kg. The difference is around 370 kg.

Looking at boot space, the XPeng G9 offers somewhat more boot space – 660 L compared to 540 L. That’s a difference of about 120 L.

When it comes to payload, the XPeng G9 carries only slightly more – 520 kg compared to 505 kg. That’s a difference of about 15 kg.

Who wins the race in the data check?

The XPeng G9 holds a decisive overall lead 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 £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/100km
  • Electric Range : 502 - 585 km
details

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View detailed analysis

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View detailed analysis

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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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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

XPeng G9

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 XPeng G9

4.7 (4 Reviews)
rate
Rob
1 Jan 2026, 18:43:08

I've seen and driven both cars. The XPeng 9 makes more of an impression. The Zeekr 7x's interior color is limited to black — a real shame! For a nicer contrast you'll have to have it wrapped in a different color. But that's a matter of taste! Otherwise the cars are comparable, noting that the XPeng is a proper SUV while the Zeekr 7x is a crossover.

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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Mercedes GLB
XPeng G9

Costs and Consumption
Price
43,200 - 62,400 £
Price
51,100 - 62,200 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
18.4 - 20.1 kWh/100km
Electric Range
431 - 631 km
Electric Range
502 - 585 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,840 - 2,280 kg
Curb weight
2,210 - 2,395 kg
Trunk capacity
540 L
Trunk capacity
660 L
Length
-
Length
-
Width
1,861 mm
Width
1,937 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
515 - 520 kg

Engine and Performance
Engine Type
Electric, Full Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
156 - 354 HP
Power HP
351 - 575 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
4.2 - 6.6 s
Max Speed
-
Max Speed
-
Torque
280 - 515 Nm
Torque
465 - 695 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
115 - 260 kW
Power kW
258 - 423 kW
Engine capacity
1,499 cm3
Engine capacity
-

General
Model Year
2026
Model Year
2025
CO2 Efficiency Class
A, D, E
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
XPeng
What drive types are available for the Mercedes GLB?

Available configurations include Rear-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.