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Mercedes C-Class EQ vs BMW iX3 comparison

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

Mercedes C-Class EQ vs BMW iX3: Key differences

Mercedes C-Class EQ

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

BMW iX3

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

C-Class EQ

Costs and Efficiency:

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

BMW iX3 is marginally 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 very slightly 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.

iX3

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 only 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 markedly 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.

C-Class EQ

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 only slightly 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 only slightly 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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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.

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.

details
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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!!

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Costs and Consumption
Price
58,000 - 67,600 £
Price
54,300 - 66,300 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
14.3 - 15.6 kWh/100km
Consumption kWh/100km
14.6 - 15.1 kWh/100km
Electric Range
706 - 753 km
Electric Range
635 - 805 km
Battery Capacity
-
Battery Capacity
-
co2
0 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
2,460 kg
Curb weight
2,360 kg
Trunk capacity
470 L
Trunk capacity
-
Length
-
Length
-
Width
1,892 mm
Width
1,895 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
505 kg
Payload
465 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
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
489 HP
Power HP
320 - 469 HP
Acceleration 0-100km/h
4 s
Acceleration 0-100km/h
4.9 - 5.9 s
Max Speed
-
Max Speed
-
Torque
800 Nm
Torque
500 - 645 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
360 kW
Power kW
235 - 345 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
BMW
Is the Mercedes C-Class EQ offered with different drivetrains?

Available configurations include 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.