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BMW i7 vs Mercedes S Class - Differences and prices compared

Compare performance (659 HP vs 802 HP), boot space and price (99200 £ vs 97200 £ ) at a glance. Find out which car is the better choice for you – BMW i7 or Mercedes S Class?

BMW i7

Mercedes S Class

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

i7

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mercedes S Class has a hardly perceptible advantage in terms of price – it starts at 97200 £ , while the BMW i7 costs 99200 £ . That’s a price difference of around 2001 £.

As for electric range, the BMW i7 performs clearly better – achieving up to 624 km, about 507 km more than the Mercedes S Class.

S Class

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 Mercedes S Class has a somewhat edge – offering 802 HP compared to 659 HP. That’s roughly 143 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes S Class is to a small extent quicker – completing the sprint in 3.30 s, while the BMW i7 takes 3.70 s. That’s about 0.40 s faster.

There’s no difference in top speed – both reach 250 km/h.

There’s also a difference in torque: Mercedes S Class pulls evident stronger with 1430 Nm compared to 1100 Nm. That’s about 330 Nm difference.

i7

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In curb weight, Mercedes S Class is distinct lighter – 2070 kg compared to 2595 kg. The difference is around 525 kg.

In terms of boot space, the Mercedes S Class offers barely noticeable more room – 550 L compared to 500 L. That’s a difference of about 50 L.

When it comes to payload, Mercedes S Class noticeable takes the win – 730 kg compared to 535 kg. That’s a difference of about 195 kg.

Who wins the race in the data check?

The BMW i7 holds a decisive overall lead 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.

BMW i7
Mercedes S Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £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
  • Electric Range : 559 - 624 km
details

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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Reviews BMW i7

Reviews Mercedes S Class

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Mercedes S Class

Costs and Consumption
Price
99200 - 157000 £
Price
97200 - 204400 £
Consumption L/100km
-
Consumption L/100km
2.3 - 13.2 L
Consumption kWh/100km
18.5 - 20.8 kWh
Consumption kWh/100km
-
Electric Range
559 - 624 km
Electric Range
31 - 117 km
Battery Capacity
101.70 kWh
Battery Capacity
10.40 kWh
co2
0 g/km
co2
52 - 301 g/km
Fuel tank capacity
-
Fuel tank capacity
65 - 76 L

Dimensions and Body
Body Type
Sedan
Body Type
Sedan
Seats
5
Seats
5
Doors
4
Doors
4
Curb weight
2595 - 2770 kg
Curb weight
2070 - 2650 kg
Trunk capacity
500 L
Trunk capacity
325 - 550 L
Length
5391 mm
Length
5179 - 5469 mm
Width
1950 mm
Width
1921 - 1954 mm
Height
1544 mm
Height
1503 - 1515 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 kg
Payload
420 - 730 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol MHEV, Petrol, 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 - 802 HP
Acceleration 0-100km/h
3.7 - 5.5 s
Acceleration 0-100km/h
3.3 - 5.9 s
Max Speed
205 - 250 km/h
Max Speed
250 km/h
Torque
650 - 1100 Nm
Torque
500 - 1430 Nm
Number of Cylinders
-
Number of Cylinders
6 - 12
Power kW
335 - 485 kW
Power kW
247 - 590 kW
Engine capacity
-
Engine capacity
2989 - 5980 cm3

General
Model Year
2022 - 2023
Model Year
2024 - 2025
CO2 Efficiency Class
A
CO2 Efficiency Class
G, E, F, B
Brand
BMW
Brand
Mercedes-Benz

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Is the BMW i7 offered with different drivetrains?

Available configurations include Rear-Wheel Drive or All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.