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BMW XM vs Mercedes S Class comparison

Compare performance (748 HP vs 585 HP), boot space and price (116,100 £ vs 104,000 £ ) at a glance. Find out which car is the better choice for you – BMW XM or Mercedes S Class?

BMW XM vs Mercedes S Class: Key differences

BMW XM

  • clearly more power
  • marginally quicker 0–100 km/h

Mercedes S Class

  • moderately cheaper
  • considerably more efficient
  • visibly more electric range
  • noticeably lighter

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

XM

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mercedes S Class is moderately cheaper – starting at 104,000 £ , while the BMW XM costs 116,100 £ . That’s a price difference of around 12,123 £.

Fuel consumption also shows a difference: the Mercedes S Class uses 2.2 L/100km and is considerably more efficient than the BMW XM with 4.7 L/100km. The difference is about 2.5 L/100km.

As for electric range, the Mercedes S Class offers visibly more range – reaching up to 118 km, about 38 km more than the BMW XM.

S Class

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the BMW XM offers clearly more power – delivering 748 HP compared to 585 HP. That’s roughly 163 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW XM is marginally quicker – completing the sprint in 3.8 s, while the Mercedes S Class takes 4 s. That’s about 0.2 s quicker.

There’s also a difference in torque: the BMW XM delivers clearly more torque with 1,000 Nm compared to 750 Nm. That’s about 250 Nm more.

XM

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

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

In terms of curb weight, Mercedes S Class is noticeably lighter – 2,165 kg compared to 2,695 kg. The difference is around 530 kg.

When it comes to payload, the Mercedes S Class carries visibly more – 660 kg compared to 525 kg. That’s a difference of about 135 kg.

Who wins the race in the data check?

The Mercedes S Class stands well ahead of its rival 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 £104,000
S Class

Mercedes S Class

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 336 - 585 HP
  • Consumption L/100km : 2.2 - 10.6 L/100km
  • Electric Range : 102 - 118 km
details

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BMW XM
Mercedes S Class

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

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Mercedes S Class

The Mercedes S-Class wraps peerless comfort, whisper-quiet luxury and subtle tech wizardry into a chauffeur-ready package that still knows how to engage the driver. It’s the car for buyers who want to arrive relaxed, be taken seriously and occasionally enjoy a grin when the road reminds them this limousine can dance.

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Reviews Mercedes S Class

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BMW XM
Mercedes S Class

Costs and Consumption
Price
116,100 - 159,300 £
Price
104,000 - 139,100 £
Consumption L/100km
4.7 - 5.3 L/100km
Consumption L/100km
2.2 - 10.6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
78 - 80 km
Electric Range
102 - 118 km
Battery Capacity
-
Battery Capacity
-
co2
105 - 119 g/km
co2
50 - 241 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
2,165 - 2,515 kg
Trunk capacity
527 L
Trunk capacity
-
Length
-
Length
-
Width
2,005 mm
Width
1,921 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
505 - 525 kg
Payload
555 - 660 kg

Engine and Performance
Engine Type
Plugin Hybrid
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
476 - 748 HP
Power HP
336 - 585 HP
Acceleration 0-100km/h
3.8 - 5.1 s
Acceleration 0-100km/h
4 - 5.7 s
Max Speed
-
Max Speed
-
Torque
700 - 1,000 Nm
Torque
560 - 750 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
350 - 550 kW
Power kW
247 - 430 kW
Engine capacity
2,998 - 4,395 cm3
Engine capacity
2,989 - 3,982 cm3

General
Model Year
2,026
Model Year
2,026
CO2 Efficiency Class
C, D
CO2 Efficiency Class
G, B, F
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.