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BMW i7 vs Mercedes S Class comparison

Compare performance (659 HP vs 585 HP), boot space and price (99,200 £ vs 104,000 £ ) at a glance. Find out which car is the better choice for you – BMW i7 or Mercedes S Class?

BMW i7 vs Mercedes S Class: Key differences

BMW i7

  • marginally cheaper
  • a bit more power
  • substantially more electric range
  • marginally quicker 0–100 km/h

Mercedes S Class

  • somewhat lighter

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

i7

Costs and Efficiency:

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

BMW i7 is marginally cheaper – starting at 99,200 £ , while the Mercedes S Class costs 104,000 £ . That’s a price difference of around 4,848 £.

As for electric range, the BMW i7 offers substantially more range – reaching up to 624 km, about 506 km more than the Mercedes S Class.

S Class

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 BMW i7 offers a bit more power – delivering 659 HP compared to 585 HP. That’s roughly 74 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW i7 is marginally quicker – completing the sprint in 3.7 s, while the Mercedes S Class takes 4 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the BMW i7 delivers noticeably more torque with 1,100 Nm compared to 750 Nm. That’s about 350 Nm more.

i7

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 somewhat lighter – 2,165 kg compared to 2,595 kg. The difference is around 430 kg.

When it comes to payload, the Mercedes S Class carries somewhat more – 660 kg compared to 535 kg. That’s a difference of about 125 kg.

Who wins the race in the data check?

The BMW i7 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 £99,200
i7

BMW i7

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 455 - 659 HP
  • Consumption kWh/100km : 18.5 - 20.8 kWh/100km
  • Electric Range : 559 - 624 km
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Mercedes S Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW i7

The BMW i7 is a quietly imposing electric limousine that wraps advanced tech and traditional Bavarian comfort in a futuristic skin. For buyers after serene luxury with a mischievous streak, it pampers rear-seat occupants while reminding the driver that BMW still knows how to make a big car feel alive.

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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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Mercedes S Class

Costs and Consumption
Price
99,200 - 157,200 £
Price
104,000 - 139,100 £
Consumption L/100km
-
Consumption L/100km
2.2 - 10.6 L/100km
Consumption kWh/100km
18.5 - 20.8 kWh/100km
Consumption kWh/100km
-
Electric Range
559 - 624 km
Electric Range
102 - 118 km
Battery Capacity
101.7 kWh
Battery Capacity
-
co2
0 g/km
co2
50 - 241 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Sedan
Seats
5
Seats
5
Doors
4
Doors
-
Curb weight
2,595 - 2,770 kg
Curb weight
2,165 - 2,515 kg
Trunk capacity
500 L
Trunk capacity
-
Length
5,391 mm
Length
-
Width
1,950 mm
Width
1,921 mm
Height
1,544 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 kg
Payload
555 - 660 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
455 - 659 HP
Power HP
336 - 585 HP
Acceleration 0-100km/h
3.7 - 5.5 s
Acceleration 0-100km/h
4 - 5.7 s
Max Speed
205 - 250 km/h
Max Speed
-
Torque
650 - 1,100 Nm
Torque
560 - 750 Nm
Number of Cylinders
-
Number of Cylinders
6 - 8
Power kW
335 - 485 kW
Power kW
247 - 430 kW
Engine capacity
-
Engine capacity
2,989 - 3,982 cm3

General
Model Year
2,022 - 2,023
Model Year
2,026
CO2 Efficiency Class
A
CO2 Efficiency Class
G, B, F
Brand
BMW
Brand
Mercedes-Benz
Is the BMW i7 offered with different drivetrains?

The BMW i7 is offered with Rear-Wheel Drive or 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.