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BMW XM vs Mercedes C-Class Saloon comparison

Compare performance (748 HP vs 680 HP), boot space and price (116,100 £ vs 41,300 £ ) at a glance. Find out which car is the better choice for you – BMW XM or Mercedes C-Class Saloon?

BMW XM vs Mercedes C-Class Saloon: Key differences

BMW XM

4.7 (1 Reviews)
rate
  • marginally more power
  • significantly more electric range
  • moderately more trunk space
details

Mercedes C-Class Saloon

  • considerably cheaper
  • very slightly more efficient
  • somewhat quicker 0–100 km/h
  • significantly lighter
details

By Achim Sedelmaier

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

XM

Costs and Efficiency:

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

Mercedes C-Class Saloon is considerably cheaper – starting at 41,300 £ , while the BMW XM costs 116,100 £ . That’s a price difference of around 74,817 £.

Fuel consumption also shows a difference: the Mercedes C-Class Saloon uses 4.5 L/100km and is very slightly more efficient than the BMW XM with 4.7 L/100km. The difference is about 0.2 L/100km.

As for electric range, the BMW XM offers significantly more range – reaching up to 80 km, about 69 km more than the Mercedes C-Class Saloon.

C-Class Saloon

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 BMW XM offers marginally more power – delivering 748 HP compared to 680 HP. That’s roughly 68 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes C-Class Saloon is somewhat quicker – completing the sprint in 3.4 s, while the BMW XM takes 3.8 s. That’s about 0.4 s quicker.

There’s also a difference in torque: the Mercedes C-Class Saloon delivers marginally more torque with 1,020 Nm compared to 1,000 Nm. That’s about 20 Nm more.

XM

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.

Seats: BMW XM offers more seats – 7 vs 5.

In terms of curb weight, Mercedes C-Class Saloon is significantly lighter – 1,695 kg compared to 2,695 kg. The difference is around 1,000 kg.

Looking at boot space, the BMW XM offers moderately more boot space – 527 L compared to 455 L. That’s a difference of about 72 L.

When it comes to payload, the Mercedes C-Class Saloon carries very slightly more – 570 kg compared to 525 kg. That’s a difference of about 45 kg.

Who wins the race in the data check?

The Mercedes C-Class Saloon is narrowly ahead 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 £41,300
C-Class Saloon

Mercedes C-Class Saloon

  • Engine Type Petrol MHEV, Diesel MHEV, Plugin Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 183 - 680 HP
  • Consumption L/100km 4.5 - 9 L/100km
  • Electric Range 11 km
details

Frequently compared as well

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW XM

The BMW XM is an unapologetically bold flagship that fuses brash, hyper-styled presence with the kind of luxury that commands attention wherever it goes. Inside it's a leather-clad showpiece loaded with modern tech and a driving personality that blends theatrical muscle with refined grand-tourer composure—ideal for buyers who want drama and comfort in equal measure.

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Reviews BMW XM

4.7 (1 Reviews)
rate

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

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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Reviews Mercedes C-Class Saloon

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

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BMW XM
Mercedes C-Class Saloon

Costs and Consumption
Price
116,100 - 159,300 £
Price
41,300 - 103,400 £
Consumption L/100km
4.7 - 5.3 L/100km
Consumption L/100km
4.5 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
78 - 80 km
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
105 - 119 g/km
co2
119 - 205 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
7
Seats
5
Doors
-
Doors
-
Curb weight
2,695 - 2,795 kg
Curb weight
1,695 - 2,165 kg
Trunk capacity
527 L
Trunk capacity
280 - 455 L
Length
-
Length
-
Width
2,005 mm
Width
1,820 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
505 - 525 kg
Payload
485 - 570 kg

Engine and Performance
Engine Type
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
476 - 748 HP
Power HP
183 - 680 HP
Acceleration 0-100km/h
3.8 - 5.1 s
Acceleration 0-100km/h
3.4 - 8.6 s
Max Speed
-
Max Speed
-
Torque
700 - 1,000 Nm
Torque
250 - 1,020 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
350 - 550 kW
Power kW
135 - 500 kW
Engine capacity
2,998 - 4,395 cm3
Engine capacity
1,496 - 1,999 cm3

General
Model Year
2026
Model Year
2,024 - 2,025
CO2 Efficiency Class
C, D
CO2 Efficiency Class
E, D, G
Brand
BMW
Brand
Mercedes-Benz
What drive types are available for the BMW XM?

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.