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Mercedes S-Class vs XPeng G6 comparison

Compare performance (635 HP vs 487 HP), boot space and price (104,000 £ vs 37,400 £ ) at a glance. Find out which car is the better choice for you – Mercedes S-Class or XPeng G6?

Mercedes S-Class vs XPeng G6: Key differences

Mercedes S-Class

  • markedly more power
  • only slightly quicker 0–100 km/h
details

XPeng G6

4.5 (7 Reviews)
rate
  • significantly cheaper
  • substantially more electric range
  • only slightly lighter
  • marginally more trunk space
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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

S-Class

Costs and Efficiency:

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

XPeng G6 is significantly cheaper – starting at 37,400 £ , while the Mercedes S-Class costs 104,000 £ . That’s a price difference of around 66,648 £.

As for electric range, the XPeng G6 offers substantially more range – reaching up to 525 km, about 407 km more than the Mercedes S-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 Mercedes S-Class offers markedly more power – delivering 635 HP compared to 487 HP. That’s roughly 148 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes S-Class is only slightly quicker – completing the sprint in 4 s, while the XPeng G6 takes 4.1 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Mercedes S-Class delivers markedly more torque with 850 Nm compared to 660 Nm. That’s about 190 Nm more.

S-Class

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.

Both vehicles offer seating for 5 people.

In terms of curb weight, XPeng G6 is only slightly lighter – 2,065 kg compared to 2,165 kg. The difference is around 100 kg.

Looking at boot space, the XPeng G6 offers marginally more boot space – 571 L compared to 530 L. That’s a difference of about 41 L.

When it comes to payload, the Mercedes S-Class carries clearly more – 660 kg compared to 475 kg. That’s a difference of about 185 kg.

Who wins the race in the data check?

The XPeng G6 is clearly superior 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.

from £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/100km
  • Electric Range 455 - 525 km
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Frequently compared as well

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Mercedes S-Class
XPeng G6

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes S-Class

The Mercedes S-Class wraps peerless comfort, whisper-quiet luxury and subtle tech wizardry into a chauffeur-ready package that still knows how to engage the driver. It’s the car for buyers who want to arrive relaxed, be taken seriously and occasionally enjoy a grin when the road reminds them this limousine can dance.

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Reviews Mercedes S-Class

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

XPeng G6

The XPeng G6 is a sleek, tech-focused electric crossover that pairs modern styling with a spacious, comfortable cabin. It delivers a refined, engaging driving experience and comes loaded with advanced driver-assistance and infotainment features that make it feel like a smarter, more connected car.

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Reviews XPeng G6

4.5 (7 Reviews)
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FAUCONNIER
21 Jun 2026, 08:51:30

Very bad impression of customer service. New car delivered with dashboard errors, dealership unable to fix the problem for 2 months, no response from customer service despite 4 messages... this scares me for what’s to come....

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
Micha
26 May 2026, 12:50:42

After intensive test drives I ultimately went with the G6P and have never regretted it.

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
Manijak
6 May 2026, 09:37:03

The Sealion is better finished and of higher quality. But it has higher consumption and charges noticeably slower.

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
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

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Mercedes S-Class
XPeng G6

Costs and Consumption
Price
104,000 - 201,400 £
Price
37,400 - 44,200 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
17.3 - 18.4 kWh/100km
Electric Range
98 - 118 km
Electric Range
455 - 525 km
Battery Capacity
-
Battery Capacity
-
co2
50 - 252 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,165 - 2,650 kg
Curb weight
2,065 - 2,220 kg
Trunk capacity
345 - 530 L
Trunk capacity
571 L
Length
-
Length
-
Width
1,921 mm
Width
1,920 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
420 - 660 kg
Payload
470 - 475 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
336 - 635 HP
Power HP
252 - 487 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
4.1 - 6.9 s
Max Speed
-
Max Speed
-
Torque
560 - 850 Nm
Torque
440 - 660 Nm
Number of Cylinders
6 - 8
Number of Cylinders
-
Power kW
247 - 467 kW
Power kW
185 - 358 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
-

General
Model Year
2026
Model Year
2025
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
XPeng
Is the Mercedes S-Class offered with different drivetrains?

The Mercedes S-Class is offered with All-Wheel Drive or Rear-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.