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BMW X3 vs Mercedes C-Class Saloon comparison

Compare performance (398 HP vs 680 HP), boot space and price (51,700 £ vs 41,300 £ ) at a glance. Find out which car is the better choice for you – BMW X3 or Mercedes C-Class Saloon?

BMW X3 vs Mercedes C-Class Saloon: Key differences

BMW X3

3.5 (2 Reviews)
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  • clearly more efficient
  • significantly more electric range
  • noticeably more trunk space
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Mercedes C-Class Saloon

  • noticeably cheaper
  • substantially more power
  • visibly quicker 0–100 km/h
  • slightly lighter
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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

X3

Costs and Efficiency:

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

Mercedes C-Class Saloon is noticeably cheaper – starting at 41,300 £ , while the BMW X3 costs 51,700 £ . That’s a price difference of around 10,360 £.

Fuel consumption also shows a difference: the BMW X3 uses 2.8 L/100km and is clearly more efficient than the Mercedes C-Class Saloon with 4.5 L/100km. The difference is about 1.7 L/100km.

As for electric range, the BMW X3 offers significantly more range – reaching up to 88 km, about 77 km more than the Mercedes C-Class Saloon.

C-Class Saloon

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 C-Class Saloon offers substantially more power – delivering 680 HP compared to 398 HP. That’s roughly 282 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes C-Class Saloon is visibly quicker – completing the sprint in 3.4 s, while the BMW X3 takes 4.6 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Mercedes C-Class Saloon delivers markedly more torque with 1,020 Nm compared to 670 Nm. That’s about 350 Nm more.

X3

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, Mercedes C-Class Saloon is slightly lighter – 1,695 kg compared to 1,930 kg. The difference is around 235 kg.

Looking at boot space, the BMW X3 offers noticeably more boot space – 570 L compared to 455 L. That’s a difference of about 115 L.

Maximum payload is identical – both can carry up to 570 kg.

Who wins the race in the data check?

The BMW X3 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 £51,700
X3

BMW X3

  • Engine Type Petrol MHEV, Diesel MHEV, Plugin Hybrid
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 197 - 398 HP
  • Consumption L/100km 2.8 - 7.7 L/100km
  • Electric Range 88 km
BMW X3
Mercedes C-Class Saloon

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

BMW X3

The BMW X3 blends sporty handling with premium comfort, making it a strong choice for drivers who want an engaging everyday SUV. Its well-appointed interior and confident road manners give it broad appeal for families and commuters who value style and versatility.

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Mercedes C-Class Saloon

The Mercedes C‑Class is the compact executive that dresses like it owns the boulevard, with an interior that blends modern elegance and plush comfort to make everyday driving feel unexpectedly special. On the road it pairs poise with a hint of cheeky agility, rewarding drivers who want refinement without forfeiting a touch of fun — and yes, it still looks great in the driveway.

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BMW X3
Mercedes C-Class Saloon

Costs and Consumption

Price
51,700 - 73,000 £
Price
41,300 - 103,400 £
Consumption L/100km
2.8 - 7.7 L/100km
Consumption L/100km
4.5 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
88 km
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
64 - 175 g/km
co2
119 - 205 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
1,930 - 2,140 kg
Curb weight
1,695 - 2,165 kg
Trunk capacity
460 - 570 L
Trunk capacity
280 - 455 L
Length
-
Length
-
Width
1,920 mm
Width
1,820 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
570 kg
Payload
485 - 570 kg

Engine and Performance

Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
197 - 398 HP
Power HP
183 - 680 HP
Acceleration 0-100km/h
4.6 - 7.8 s
Acceleration 0-100km/h
3.4 - 8.6 s
Max Speed
-
Max Speed
-
Torque
330 - 670 Nm
Torque
250 - 1,020 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
145 - 293 kW
Power kW
135 - 500 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
1,496 - 1,999 cm3

General

Model Year
2,024 - 2,025
Model Year
2,024 - 2,025
CO2 Efficiency Class
F, E, B
CO2 Efficiency Class
E, D, G
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.