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Mercedes SL Class vs NIO ET7 comparison

Compare performance (816 HP vs 653 HP), boot space and price (112,700 £ vs 59,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes SL Class or NIO ET7?

Mercedes SL Class vs NIO ET7: Key differences

Mercedes SL Class

  • a bit more power
  • visibly quicker 0–100 km/h
  • noticeably lighter
details

NIO ET7

  • substantially cheaper
  • significantly more electric range
  • noticeably more trunk space
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By Achim Sedelmaier

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

SL Class

Costs and Efficiency:

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

NIO ET7 is substantially cheaper – starting at 59,900 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 52,790 £.

As for electric range, the NIO ET7 offers significantly more range – reaching up to 584 km, about 572 km more than the Mercedes SL Class.

ET7

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 Mercedes SL Class offers a bit more power – delivering 816 HP compared to 653 HP. That’s roughly 163 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 NIO ET7 takes 3.8 s. That’s about 0.9 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers considerably more torque with 1,420 Nm compared to 850 Nm. That’s about 570 Nm more.

SL Class

Space and Everyday Use:

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

Seats: NIO ET7 offers more seats – 5 vs 4.

In terms of curb weight, Mercedes SL Class is noticeably lighter – 1,810 kg compared to 2,434 kg. The difference is around 624 kg.

Looking at boot space, the NIO ET7 offers noticeably more boot space – 363 L compared to 240 L. That’s a difference of about 123 L.

When it comes to payload, the NIO ET7 carries moderately more – 466 kg compared to 375 kg. That’s a difference of about 91 kg.

Who wins the race in the data check?

The NIO ET7 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 £59,900
ET7

NIO ET7

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 653 HP
  • Consumption kWh/100km 19 - 19.3 kWh/100km
  • Electric Range 451 - 584 km
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Mercedes SL Class
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

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Reviews Mercedes SL Class

No reviews yet. Share your experience and help others decide.

NIO ET7

The NIO ET7 arrives like a calm thunderstorm — sleek, silent and unapologetically clever, turning motorway cruising into the sort of effortless glide that makes other cars feel noisy and rehearsed. Inside, it's all luxury sofas and smart gadgets that actually help rather than confuse, so buyers who crave tech and comfort will feel like they've upgraded their life without needing to spellcheck the manual.

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Reviews NIO ET7

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Mercedes SL Class
NIO ET7

Costs and Consumption
Price
112,700 - 219,300 £
Price
59,900 - 68,900 £
Consumption L/100km
9 - 13.6 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19 - 19.3 kWh/100km
Electric Range
12 km
Electric Range
451 - 584 km
Battery Capacity
-
Battery Capacity
73.5 - 90 kWh
co2
206 - 309 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Sedan
Seats
4
Seats
5
Doors
-
Doors
4
Curb weight
1,810 - 2,195 kg
Curb weight
2,434 - 2,454 kg
Trunk capacity
110 - 240 L
Trunk capacity
363 L
Length
-
Length
5,101 mm
Width
1,915 mm
Width
1,987 mm
Height
-
Height
1,509 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
145 - 375 kg
Payload
446 - 466 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
435 - 816 HP
Power HP
653 HP
Acceleration 0-100km/h
2.9 - 4.7 s
Acceleration 0-100km/h
3.8 s
Max Speed
-
Max Speed
200 km/h
Torque
500 - 1,420 Nm
Torque
850 Nm
Number of Cylinders
4 - 8
Number of Cylinders
-
Power kW
320 - 600 kW
Power kW
480 kW
Engine capacity
1,991 - 3,982 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2022
CO2 Efficiency Class
G
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
NIO
What drive types are available for the Mercedes SL Class?

The Mercedes SL Class 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.