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BMW iX3 vs Mercedes C-Class EQ comparison

Compare performance (469 HP vs 489 HP), boot space and price (54,300 £ vs 58,000 £ ) at a glance. Find out which car is the better choice for you – BMW iX3 or Mercedes C-Class EQ?

BMW iX3 vs Mercedes C-Class EQ: Key differences

BMW iX3

4.6 (4 Reviews)
rate
  • very slightly cheaper
  • marginally more electric range
  • marginally lighter
details

Mercedes C-Class EQ

  • very slightly more power
  • barely more efficient
  • clearly quicker 0–100 km/h
details

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

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 very slightly cheaper – starting at 54,300 £ , while the Mercedes C-Class EQ costs 58,000 £ . That’s a price difference of around 3,696 £.

In terms of energy consumption, the Mercedes C-Class EQ is barely more efficient: consuming 14.3 kWh/100km compared to 14.6 kWh/100km for the BMW iX3. That’s a difference of about 0.3 kWh/100km.

As for electric range, the BMW iX3 offers marginally more range – reaching up to 805 km, about 52 km more than the Mercedes C-Class EQ.

C-Class EQ

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 C-Class EQ offers very slightly more power – delivering 489 HP compared to 469 HP. That’s roughly 20 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes C-Class EQ is clearly quicker – completing the sprint in 4 s, while the BMW iX3 takes 4.9 s. That’s about 0.9 s quicker.

There’s also a difference in torque: the Mercedes C-Class EQ delivers a bit more torque with 800 Nm compared to 645 Nm. That’s about 155 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 2,460 kg. The difference is around 100 kg.

When it comes to payload, the Mercedes C-Class EQ carries barely more – 505 kg compared to 465 kg. That’s a difference of about 40 kg.

Who wins the race in the data check?

The Mercedes C-Class EQ stands out in the key areas 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 £58,000
C-Class EQ

Mercedes C-Class EQ

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 489 HP
  • Consumption kWh/100km 14.3 - 15.6 kWh/100km
  • Electric Range 706 - 753 km
details

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View detailed analysis

Engine and Performance
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Dimensions and Body
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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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Reviews BMW iX3

4.6 (4 Reviews)
rate
Johan
20 Sept 2025, 16:15:37

Nice range, fast charging and… bidirectional charging!!

Mercedes C-Class EQ

The Mercedes C‑Class EQ blends the familiar poise and luxury of the C‑Class with Mercedes' EQ electric ethos, delivering a quietly refined and modern driving experience. Inside, it pairs upscale materials and tech-forward touches with a composed ride that suits both city commuting and longer journeys.

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Reviews Mercedes C-Class EQ

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

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Mercedes C-Class EQ

Costs and Consumption
Price
54,300 - 66,300 £
Price
58,000 - 67,600 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
14.6 - 15.1 kWh/100km
Consumption kWh/100km
14.3 - 15.6 kWh/100km
Electric Range
635 - 805 km
Electric Range
706 - 753 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,360 kg
Curb weight
2,460 kg
Trunk capacity
-
Trunk capacity
470 L
Length
-
Length
-
Width
1,895 mm
Width
1,892 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
465 kg
Payload
505 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
320 - 469 HP
Power HP
489 HP
Acceleration 0-100km/h
4.9 - 5.9 s
Acceleration 0-100km/h
4 s
Max Speed
-
Max Speed
-
Torque
500 - 645 Nm
Torque
800 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
235 - 345 kW
Power kW
360 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
BMW
Brand
Mercedes-Benz
What drive types are available for the BMW iX3?

Available configurations include 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.