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Mercedes S-Class vs BMW 7 Series comparison

Compare performance (635 HP vs 571 HP), boot space and price (104,000 £ vs 102,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes S-Class or BMW 7 Series?

Mercedes S-Class vs BMW 7 Series: Key differences

Mercedes S-Class

  • moderately more power
  • substantially more efficient
  • noticeably more electric range
  • very slightly quicker 0–100 km/h
  • very slightly lighter
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BMW 7 Series

  • barely cheaper
  • only slightly more trunk space
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By Achim Sedelmaier

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

S-Class

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.

BMW 7 Series is barely cheaper – starting at 102,800 £ , while the Mercedes S-Class costs 104,000 £ . That’s a price difference of around 1,248 £.

Fuel consumption also shows a difference: the Mercedes S-Class uses 2.2 L/100km and is substantially more efficient than the BMW 7 Series with 3.3 L/100km. The difference is about 1.1 L/100km.

As for electric range, the Mercedes S-Class offers noticeably more range – reaching up to 118 km, about 38 km more than the BMW 7 Series.

7 Series

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 S-Class offers moderately more power – delivering 635 HP compared to 571 HP. That’s roughly 64 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes S-Class is very slightly quicker – completing the sprint in 4 s, while the BMW 7 Series takes 4.3 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Mercedes S-Class delivers barely more torque with 850 Nm compared to 800 Nm. That’s about 50 Nm more.

S-Class

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 S-Class is very slightly lighter – 2,165 kg compared to 2,255 kg. The difference is around 90 kg.

Looking at boot space, the BMW 7 Series offers only slightly more boot space – 540 L compared to 530 L. That’s a difference of about 10 L.

When it comes to payload, the BMW 7 Series carries very slightly more – 665 kg compared to 660 kg. That’s a difference of about 5 kg.

Who wins the race in the data check?

The Mercedes S-Class 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 £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 - 635 HP
  • Consumption L/100km 2.2 - 11 L/100km
  • Electric Range 98 - 118 km
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Frequently compared as well

Mercedes E-Class
Mercedes S-Class
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BMW 7 Series
Rolls-Royce Phantom
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Mercedes S-Class
BMW 7 Series

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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 7 Series

The BMW 7 Series is a flagship that balances whisper-quiet luxury with a driver's focus, wrapping advanced tech and plush comfort in a sleek, authoritative presence. It’s the kind of car that navigates city traffic and open roads with equal poise, offering a grown-up alternative for buyers who demand refinement without losing a little driving fun.

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Reviews BMW 7 Series

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Mercedes S-Class
BMW 7 Series

Costs and Consumption
Price
104,000 - 201,400 £
Price
102,800 - 128,700 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
3.3 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
98 - 118 km
Electric Range
80 km
Battery Capacity
-
Battery Capacity
-
co2
50 - 252 g/km
co2
74 - 160 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,165 - 2,650 kg
Curb weight
2,255 - 2,525 kg
Trunk capacity
345 - 530 L
Trunk capacity
525 - 540 L
Length
-
Length
-
Width
1,921 mm
Width
1,950 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
420 - 660 kg
Payload
605 - 665 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Diesel MHEV, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 635 HP
Power HP
300 - 571 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
4.3 - 5.8 s
Max Speed
-
Max Speed
-
Torque
560 - 850 Nm
Torque
670 - 800 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6
Power kW
247 - 467 kW
Power kW
220 - 420 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
2,993 - 2,998 cm3

General
Model Year
2026
Model Year
2,024 - 2,025
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
F, B
Brand
Mercedes-Benz
Brand
BMW
Is the Mercedes S-Class offered with different drivetrains?

The Mercedes S-Class is offered with 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.