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BMW iX3 vs Mercedes G-Class comparison

Compare performance (469 HP vs 605 HP), boot space and price (54,300 £ vs 106,600 £ ) at a glance. Find out which car is the better choice for you – BMW iX3 or Mercedes G-Class?

BMW iX3 vs Mercedes G-Class: Key differences

BMW iX3

4.6 (5 Reviews)
rate
  • significantly cheaper
  • significantly more efficient
  • significantly more electric range
  • marginally lighter
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Mercedes G-Class

  • clearly more power
  • a bit quicker 0–100 km/h
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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.

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

iX3

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.

BMW iX3 is significantly cheaper – starting at 54,300 £ , while the Mercedes G-Class costs 106,600 £ . That’s a price difference of around 52,248 £.

In terms of energy consumption, the BMW iX3 is significantly more efficient: consuming 14.6 kWh/100km compared to 28 kWh/100km for the Mercedes G-Class. That’s a difference of about 13.4 kWh/100km.

As for electric range, the BMW iX3 offers significantly more range – reaching up to 805 km, about 326 km more than the Mercedes G-Class.

G-Class

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 Mercedes G-Class offers clearly more power – delivering 605 HP compared to 469 HP. That’s roughly 136 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes G-Class is a bit quicker – completing the sprint in 4.4 s, while the BMW iX3 takes 4.9 s. That’s about 0.5 s quicker.

There’s also a difference in torque: the Mercedes G-Class delivers significantly more torque with 1,164 Nm compared to 645 Nm. That’s about 519 Nm more.

iX3

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, BMW iX3 is marginally lighter – 2,360 kg compared to 2,485 kg. The difference is around 125 kg.

When it comes to payload, the Mercedes G-Class carries markedly more – 715 kg compared to 465 kg. That’s a difference of about 250 kg.

Who wins the race in the data check?

The BMW iX3 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 £54,300
iX3

BMW iX3

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive, Rear-Wheel Drive
  • Power HP 320 - 469 HP
  • Consumption kWh/100km 14.6 - 15.1 kWh/100km
  • Electric Range 635 - 805 km
BMW iX3
Mercedes G-Class

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

BMW iX3

The BMW iX3 is an electric SUV that delivers the composed, premium driving experience BMW buyers expect. With a calm, refined cabin and practical everyday usability, it’s a strong choice for those who want electric motoring without giving up luxury and comfort.

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Mercedes G-Class

The G-Class, often called the G‑Wagen, is a blocky icon that blends unapologetic off-road prowess with a plush, modern cabin, announcing your arrival before you even step out. It’s equally at home crawling over rocks or cruising city streets, and owning one feels like adopting a very expensive, very capable personality.

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BMW iX3
Mercedes G-Class

Costs and Consumption

Price
54,300 - 66,300 £
Price
106,600 - 171,000 £
Consumption L/100km
-
Consumption L/100km
8.7 - 14.7 L/100km
Consumption kWh/100km
14.6 - 15.1 kWh/100km
Consumption kWh/100km
28 kWh/100km
Electric Range
635 - 805 km
Electric Range
479 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 - 336 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
SUV
Body Type
Off-Roader
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,360 kg
Curb weight
2,485 - 3,085 kg
Trunk capacity
-
Trunk capacity
640 L
Length
-
Length
-
Width
1,895 mm
Width
1,931 - 1,984 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
465 kg
Payload
115 - 715 kg

Engine and Performance

Engine Type
Electric
Engine Type
Petrol MHEV, Diesel MHEV, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
320 - 469 HP
Power HP
387 - 605 HP
Acceleration 0-100km/h
4.9 - 5.9 s
Acceleration 0-100km/h
4.4 - 5.8 s
Max Speed
-
Max Speed
-
Torque
500 - 645 Nm
Torque
760 - 1,164 Nm
Number of Cylinders
-
Number of Cylinders
6 - 8
Power kW
235 - 345 kW
Power kW
285 - 445 kW
Engine capacity
-
Engine capacity
2,989 - 3,982 cm3

General

Model Year
2026
Model Year
2,025 - 2,026
CO2 Efficiency Class
A
CO2 Efficiency Class
G, A
Brand
BMW
Brand
Mercedes-Benz
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.