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Mercedes B Class vs XPeng G6 comparison

Compare performance (238 HP vs 487 HP), boot space and price (33100 £ vs 37400 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or XPeng G6?

Mercedes B Class vs XPeng G6: Key differences

Mercedes B Class

4.9 (5 Reviews)
rate
  • somewhat cheaper
  • clearly lighter

XPeng G6

5 (3 Reviews)
rate
  • clearly more power
  • decisively more electric range
  • convincingly quicker from 0–100 km/h
  • distinct more trunk space

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

B Class

Costs and Efficiency:

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

Mercedes B Class has a somewhat advantage in terms of price – it starts at 33100 £ , while the XPeng G6 costs 37400 £ . That’s a price difference of around 4242 £.

As for electric range, the XPeng G6 performs decisively better – achieving up to 525 km, about 442 km more than the Mercedes B Class.

G6

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 G6 has a clearly edge – offering 487 HP compared to 238 HP. That’s roughly 249 HP more horsepower.

In acceleration from 0 to 100 km/h, the XPeng G6 is convincingly quicker – completing the sprint in 4.10 s, while the Mercedes B Class takes 6.50 s. That’s about 2.40 s faster.

There’s also a difference in torque: XPeng G6 pulls clearly perceptible stronger with 660 Nm compared to 450 Nm. That’s about 210 Nm difference.

B Class

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 B Class is clearly lighter – 1405 kg compared to 2065 kg. The difference is around 660 kg.

In terms of boot space, the XPeng G6 offers distinct more room – 571 L compared to 455 L. That’s a difference of about 116 L.

When it comes to payload, Mercedes B Class to a small extent takes the win – 550 kg compared to 475 kg. That’s a difference of about 75 kg.

Who wins the race in the data check?

The XPeng G6 is far ahead overall 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.

Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class is the practical, airy people‑carrier that prioritises space and comfort, while the Mercedes GLA takes the same mechanical smarts and adds SUV looks, higher ride height and a touch more road presence. Pick the B‑Class for family‑friendly sense and efficiency, choose the GLA if …
XPeng G6
ZEEKR 7X
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The XPeng G6 fizzes with futuristic tech, sharp handling and a coupe-like silhouette, while the ZEEKR 7X leans into space, solidity and premium materials — think gadget-hungry sportster versus grown-up tourer. On the road the G6 feels lighter and more playful with impressive efficiency and clever …
Mercedes B Class
XPeng G6

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £37,400
G6

XPeng G6

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 252 - 487 HP
  • Consumption kWh/100km : 17.3 - 18.4 kWh
  • Electric Range : 455 - 525 km
details

Mercedes B Class

4.9 (5 Reviews)
rate

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
18C0947_011
18C0947_009
18C0953_005
18C0953_035
18C0947_044

XPeng G6

5 (3 Reviews)
rate

The XPeng G6 looks like a sleeker, tech-rich alternative to conventional electric SUVs, with an interior that feels modern, airy and purposefully designed for everyday comfort. On the road it’s composed and surprisingly engaging, giving drivers a smart mix of calm refinement and a playful streak — not bad for a car that quietly challenges the usual premium suspects.

details
IMG_0237
IMG_0238

Reviews Mercedes B Class

4.9 (5 Reviews)
rate
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

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

Reviews XPeng G6

5 (3 Reviews)
rate
Carlos
21 Jan 2026, 18:28:52

The Xpeng G6 strikes me as very convincing when it comes to technology, ultra-fast charging, comfort, and range — definitely worth keeping an eye on.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Mercedes B Class
XPeng G6

Costs and Consumption
Price
33100 - 52500 £
Price
37400 - 44200 £
Consumption L/100km
2.5 - 6.9 L
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
17.3 - 18.4 kWh
Electric Range
83 km
Electric Range
455 - 525 km
Battery Capacity
12.90 kWh
Battery Capacity
-
co2
56 - 156 g/km
co2
0 g/km
Fuel tank capacity
35 L
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
1405 - 1745 kg
Curb weight
2065 - 2220 kg
Trunk capacity
405 - 455 L
Trunk capacity
571 L
Length
4419 mm
Length
-
Width
1796 mm
Width
1920 mm
Height
1562 mm
Height
-
Max trunk capacity
1440 L
Max trunk capacity
-
Payload
505 - 550 kg
Payload
470 - 475 kg

Engine and Performance
Engine Type
Plugin Hybrid, 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 - 238 HP
Power HP
252 - 487 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
4.1 - 6.9 s
Max Speed
223 km/h
Max Speed
-
Torque
200 - 450 Nm
Torque
440 - 660 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 175 kW
Power kW
185 - 358 kW
Engine capacity
1332 - 1991 cm3
Engine capacity
-

General
Model Year
2024 - 2025
Model Year
2025
CO2 Efficiency Class
B, D, E, F
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
XPeng

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What drivetrain options does the Mercedes B Class have?

The Mercedes B Class is offered with Front-Wheel Drive or All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.