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Mercedes SL Class vs XPeng G6 comparison

Compare performance (816 HP vs 487 HP), boot space and price (112,700 £ vs 37,400 £ ) at a glance. Find out which car is the better choice for you – Mercedes SL Class or XPeng G6?

Mercedes SL Class vs XPeng G6: Key differences

Mercedes SL Class

  • substantially more power
  • substantially quicker 0–100 km/h
  • moderately lighter
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XPeng G6

4.5 (7 Reviews)
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  • clearly cheaper
  • significantly more electric range
  • clearly 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

SL Class

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.

XPeng G6 is clearly cheaper – starting at 37,400 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 75,333 £.

As for electric range, the XPeng G6 offers significantly more range – reaching up to 525 km, about 513 km more than the Mercedes SL Class.

G6

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 Mercedes SL Class offers substantially more power – delivering 816 HP compared to 487 HP. That’s roughly 329 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is substantially quicker – completing the sprint in 2.9 s, while the XPeng G6 takes 4.1 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers substantially more torque with 1,420 Nm compared to 660 Nm. That’s about 760 Nm more.

SL 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.

Seats: XPeng G6 offers more seats – 5 vs 4.

In terms of curb weight, Mercedes SL Class is moderately lighter – 1,810 kg compared to 2,065 kg. The difference is around 255 kg.

Looking at boot space, the XPeng G6 offers clearly more boot space – 571 L compared to 240 L. That’s a difference of about 331 L.

When it comes to payload, the XPeng G6 carries noticeably more – 475 kg compared to 375 kg. That’s a difference of about 100 kg.

Who wins the race in the data check?

The XPeng G6 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 £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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Mercedes SL Class
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes SL Class

The Mercedes SL blends timeless elegance with a cheeky sense of occasion, its retractable roof turning any commute into a small celebratory parade. Behind the wheel it behaves like a grown-up sports car that prefers comfort and presence over headline-grabbing bravado, making it a tempting choice for buyers who want to arrive in style.

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Reviews Mercedes SL 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 SL Class
XPeng G6

Costs and Consumption
Price
112,700 - 219,300 £
Price
37,400 - 44,200 £
Consumption L/100km
9 - 13.6 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
17.3 - 18.4 kWh/100km
Electric Range
12 km
Electric Range
455 - 525 km
Battery Capacity
-
Battery Capacity
-
co2
206 - 309 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
SUV
Seats
4
Seats
5
Doors
-
Doors
-
Curb weight
1,810 - 2,195 kg
Curb weight
2,065 - 2,220 kg
Trunk capacity
110 - 240 L
Trunk capacity
571 L
Length
-
Length
-
Width
1,915 mm
Width
1,920 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
145 - 375 kg
Payload
470 - 475 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
435 - 816 HP
Power HP
252 - 487 HP
Acceleration 0-100km/h
2.9 - 4.7 s
Acceleration 0-100km/h
4.1 - 6.9 s
Max Speed
-
Max Speed
-
Torque
500 - 1,420 Nm
Torque
440 - 660 Nm
Number of Cylinders
4 - 8
Number of Cylinders
-
Power kW
320 - 600 kW
Power kW
185 - 358 kW
Engine capacity
1,991 - 3,982 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
XPeng
What drive types are available for the Mercedes SL Class?

The Mercedes SL Class is offered with 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.