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XPeng G9 vs Rolls-Royce Cullinan comparison

Compare performance (575 HP vs 600 HP), boot space and price (51,100 £ vs 275,400 £ ) at a glance. Find out which car is the better choice for you – XPeng G9 or Rolls-Royce Cullinan?

XPeng G9 vs Rolls-Royce Cullinan: Key differences

XPeng G9

4.7 (4 Reviews)
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  • considerably cheaper
  • slightly quicker 0–100 km/h
  • noticeably lighter
  • moderately more trunk space
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Rolls-Royce Cullinan

  • only slightly more power
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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

G9

Costs and Efficiency:

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

XPeng G9 is considerably cheaper – starting at 51,100 £ , while the Rolls-Royce Cullinan costs 275,400 £ . That’s a price difference of around 224,315 £.

Cullinan

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Rolls-Royce Cullinan offers only slightly more power – delivering 600 HP compared to 575 HP. That’s roughly 25 HP more horsepower.

When accelerating from 0 to 100 km/h, the XPeng G9 is slightly quicker – completing the sprint in 4.2 s, while the Rolls-Royce Cullinan takes 4.9 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the Rolls-Royce Cullinan delivers clearly more torque with 900 Nm compared to 695 Nm. That’s about 205 Nm more.

G9

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, XPeng G9 is noticeably lighter – 2,210 kg compared to 2,660 kg. The difference is around 450 kg.

Looking at boot space, the XPeng G9 offers moderately more boot space – 660 L compared to 555 L. That’s a difference of about 105 L.

When it comes to payload, the Rolls-Royce Cullinan carries visibly more – 840 kg compared to 520 kg. That’s a difference of about 320 kg.

Who wins the race in the data check?

The XPeng G9 stands well ahead of its rival 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
XPeng G9
Rolls-Royce Cullinan

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

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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Rolls-Royce Cullinan

The Cullinan seamlessly combines the hallmark luxury of Rolls-Royce with the rugged versatility of an SUV, making it a true standout in the automotive landscape. Its impeccably crafted interior envelops passengers in a serene atmosphere, complemented by advanced technology and unparalleled comfort. With its commanding presence on the road, the Cullinan redefines what it means to travel in style without compromising on capability.

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XPeng G9
Rolls-Royce Cullinan

Costs and Consumption

Price
51,100 - 62,200 £
Price
275,400 - 324,600 £
Consumption L/100km
-
Consumption L/100km
16 - 16.8 L/100km
Consumption kWh/100km
18.4 - 20.1 kWh/100km
Consumption kWh/100km
-
Electric Range
502 - 585 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
363 - 380 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
2,210 - 2,395 kg
Curb weight
2,660 kg
Trunk capacity
660 L
Trunk capacity
555 L
Length
-
Length
-
Width
1,937 mm
Width
2,000 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 520 kg
Payload
840 kg

Engine and Performance

Engine Type
Electric
Engine Type
Petrol MHEV, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
351 - 575 HP
Power HP
571 - 600 HP
Acceleration 0-100km/h
4.2 - 6.6 s
Acceleration 0-100km/h
4.9 - 5.2 s
Max Speed
-
Max Speed
-
Torque
465 - 695 Nm
Torque
850 - 900 Nm
Number of Cylinders
-
Number of Cylinders
12
Power kW
258 - 423 kW
Power kW
420 - 441 kW
Engine capacity
-
Engine capacity
6,749 cm3

General

Model Year
2025
Model Year
2024
CO2 Efficiency Class
A
CO2 Efficiency Class
G
Brand
XPeng
Brand
Rolls-Royce
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.