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Mercedes SL Class vs NIO EL6 comparison

Compare performance (816 HP vs 490 HP), boot space and price (112,700 £ vs 45,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes SL Class or NIO EL6?

Mercedes SL Class vs NIO EL6: Key differences

Mercedes SL Class

  • clearly more power
  • clearly quicker 0–100 km/h
  • markedly lighter
details

NIO EL6

4.1 (1 Reviews)
rate
  • considerably cheaper
  • considerably more electric range
  • significantly more trunk space
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

SL Class

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

NIO EL6 is considerably cheaper – starting at 45,900 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 66,847 £.

As for electric range, the NIO EL6 offers considerably more range – reaching up to 529 km, about 517 km more than the Mercedes SL Class.

EL6

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 SL Class offers clearly more power – delivering 816 HP compared to 490 HP. That’s roughly 326 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is clearly quicker – completing the sprint in 2.9 s, while the NIO EL6 takes 4.5 s. That’s about 1.6 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers clearly more torque with 1,420 Nm compared to 700 Nm. That’s about 720 Nm more.

SL Class

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Seats: NIO EL6 offers more seats – 5 vs 4.

In terms of curb weight, Mercedes SL Class is markedly lighter – 1,810 kg compared to 2,215 kg. The difference is around 405 kg.

Looking at boot space, the NIO EL6 offers significantly more boot space – 597 L compared to 240 L. That’s a difference of about 357 L.

When it comes to payload, the NIO EL6 carries clearly more – 475 kg compared to 375 kg. That’s a difference of about 100 kg.

Who wins the race in the data check?

The NIO EL6 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 £45,900
EL6

NIO EL6

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 490 HP
  • Consumption kWh/100km 20.4 - 21.2 kWh/100km
  • Electric Range 406 - 529 km
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Frequently compared as well

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Mercedes SL Class
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Mercedes SL Class
NIO EL6

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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15C1119_012
15C1119_029
15C1119_120
15C1119_004

Reviews Mercedes SL Class

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

NIO EL6

The NIO EL6 blends coupe-like styling with a spacious, tech-packed cabin that makes it feel more premium than its price tag suggests. It steers with quiet confidence and clever conveniences — including NIO's battery-swap option — so long trips start to feel like pure driving pleasure rather than logistical planning.

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NIO EL6 Exterior 2
NIO EL6 Exterior 5
NIO EL6 Innenraum Press 2
NIO EL6 Kofferraum Press 2

Reviews NIO EL6

4.1 (1 Reviews)
rate
bashiro
27 Apr 2026, 14:05:07

cost,design and boot space

How do you mainly use this car? (optional): Long-distance driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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NIO EL6
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Mercedes SL Class
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Mercedes SL Class
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Renault R5
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Mercedes SL Class
NIO EL6

Costs and Consumption
Price
112,700 - 219,300 £
Price
45,900 - 63,900 £
Consumption L/100km
9 - 13.6 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
20.4 - 21.2 kWh/100km
Electric Range
12 km
Electric Range
406 - 529 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
SUV
Seats
4
Seats
5
Doors
-
Doors
5
Curb weight
1,810 - 2,195 kg
Curb weight
2,215 - 2,235 kg
Trunk capacity
110 - 240 L
Trunk capacity
597 L
Length
-
Length
4,854 mm
Width
1,915 mm
Width
1,987 mm
Height
-
Height
1,703 mm
Max trunk capacity
-
Max trunk capacity
1,430 L
Payload
145 - 375 kg
Payload
455 - 475 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plug-in 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
490 HP
Acceleration 0-100km/h
2.9 - 4.7 s
Acceleration 0-100km/h
4.5 s
Max Speed
-
Max Speed
200 km/h
Torque
500 - 1,420 Nm
Torque
700 Nm
Number of Cylinders
4 - 8
Number of Cylinders
-
Power kW
320 - 600 kW
Power kW
360 kW
Engine capacity
1,991 - 3,982 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2023
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.