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BMW i7 vs Mercedes SL Class comparison

Compare performance (659 HP vs 816 HP), boot space and price (99,300 £ vs 112,700 £ ) at a glance. Find out which car is the better choice for you – BMW i7 or Mercedes SL Class?

BMW i7 vs Mercedes SL Class: Key differences

BMW i7

  • moderately cheaper
  • considerably more electric range
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Mercedes SL Class

  • a bit more power
  • visibly quicker 0–100 km/h
  • significantly lighter
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By Achim Sedelmaier

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.

BMW i7 is moderately cheaper – starting at 99,300 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 13,362 £.

As for electric range, the BMW i7 offers considerably more range – reaching up to 624 km, about 612 km more than the Mercedes SL Class.

SL 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 SL Class offers a bit more power – delivering 816 HP compared to 659 HP. That’s roughly 157 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is visibly quicker – completing the sprint in 2.9 s, while the BMW i7 takes 3.7 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers clearly more torque with 1,420 Nm compared to 1,100 Nm. That’s about 320 Nm more.

i7

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 i7 offers more seats – 5 vs 4.

In terms of curb weight, Mercedes SL Class is significantly lighter – 1,810 kg compared to 2,595 kg. The difference is around 785 kg.

When it comes to payload, the BMW i7 carries clearly more – 535 kg compared to 375 kg. That’s a difference of about 160 kg.

Who wins the race in the data check?

The BMW i7 is decisively 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 £99,300
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
BMW i7
Mercedes SL 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 SL Class

The Mercedes SL blends timeless elegance with a cheeky sense of occasion, its retractable roof turning any commute into a small celebratory parade. Behind the wheel it behaves like a grown-up sports car that prefers comfort and presence over headline-grabbing bravado, making it a tempting choice for buyers who want to arrive in style.

details
BMW i7
Mercedes SL Class

Costs and Consumption

Price
99,300 - 157,200 £
Price
112,700 - 219,300 £
Consumption L/100km
-
Consumption L/100km
9 - 13.6 L/100km
Consumption kWh/100km
18.5 - 20.8 kWh/100km
Consumption kWh/100km
-
Electric Range
559 - 624 km
Electric Range
12 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
206 - 309 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
Sedan
Body Type
Roadster
Seats
5
Seats
4
Doors
-
Doors
-
Curb weight
2,595 - 2,770 kg
Curb weight
1,810 - 2,195 kg
Trunk capacity
500 L
Trunk capacity
-
Length
-
Length
-
Width
1,950 mm
Width
1,915 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 kg
Payload
145 - 375 kg

Engine and Performance

Engine Type
Electric
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
455 - 659 HP
Power HP
381 - 816 HP
Acceleration 0-100km/h
3.7 - 5.5 s
Acceleration 0-100km/h
2.9 - 4.9 s
Max Speed
-
Max Speed
-
Torque
650 - 1,100 Nm
Torque
480 - 1,420 Nm
Number of Cylinders
-
Number of Cylinders
4 - 8
Power kW
335 - 485 kW
Power kW
280 - 600 kW
Engine capacity
-
Engine capacity
1,991 - 3,982 cm3

General

Model Year
2,022 - 2,023
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
G
Brand
BMW
Brand
Mercedes-Benz
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.