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Mercedes S-Class vs NIO ET5 Wagon comparison

Compare performance (635 HP vs 490 HP), boot space and price (104,000 £ vs 40,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes S-Class or NIO ET5 Wagon?

Mercedes S-Class vs NIO ET5 Wagon: Key differences

Mercedes S-Class

  • visibly more power
  • barely lighter
  • somewhat more trunk space
details

NIO ET5 Wagon

  • significantly cheaper
  • clearly more electric range
details

By Achim Sedelmaier

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

S-Class

Costs and Efficiency:

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

NIO ET5 Wagon is significantly cheaper – starting at 40,700 £ , while the Mercedes S-Class costs 104,000 £ . That’s a price difference of around 63,305 £.

As for electric range, the NIO ET5 Wagon offers clearly more range – reaching up to 560 km, about 442 km more than the Mercedes S-Class.

ET5 Wagon

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 S-Class offers visibly more power – delivering 635 HP compared to 490 HP. That’s roughly 145 HP more horsepower.

Both models accelerate almost equally fast – 4 s from 0 to 100 km/h.

There’s also a difference in torque: the Mercedes S-Class delivers moderately more torque with 850 Nm compared to 700 Nm. That’s about 150 Nm more.

S-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.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes S-Class is barely lighter – 2,165 kg compared to 2,265 kg. The difference is around 100 kg.

Looking at boot space, the Mercedes S-Class offers somewhat more boot space – 530 L compared to 450 L. That’s a difference of about 80 L.

When it comes to payload, the Mercedes S-Class carries markedly more – 660 kg compared to 465 kg. That’s a difference of about 195 kg.

Who wins the race in the data check?

The NIO ET5 Wagon 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 £40,700
ET5 Wagon

NIO ET5 Wagon

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 490 HP
  • Consumption kWh/100km 19.3 - 19.8 kWh/100km
  • Electric Range 435 - 560 km
details

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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 Mercedes S-Class

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NIO ET5 Wagon

The NIO ET5 Wagon blends sleek fastback styling with the sensible practicality of a wagon, delivering a premium-feeling cabin and clever cargo space that keeps life neatly packed. For buyers who want electric refinement without sacrificing family-hauler utility, the ET5 Wagon offers quiet, eager performance and smart packaging that makes weekend escapes and daily commutes equally enjoyable — yes, even with the dog and the golf clubs.

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Reviews NIO ET5 Wagon

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NIO ET5 Wagon

Costs and Consumption
Price
104,000 - 201,400 £
Price
40,700 - 58,700 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19.3 - 19.8 kWh/100km
Electric Range
98 - 118 km
Electric Range
435 - 560 km
Battery Capacity
-
Battery Capacity
73.5 - 90 kWh
co2
50 - 252 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Estate
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
2,165 - 2,650 kg
Curb weight
2,265 - 2,285 kg
Trunk capacity
345 - 530 L
Trunk capacity
450 L
Length
-
Length
4,790 mm
Width
1,921 mm
Width
1,960 mm
Height
-
Height
1,499 mm
Max trunk capacity
-
Max trunk capacity
1,300 L
Payload
420 - 660 kg
Payload
445 - 465 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 635 HP
Power HP
490 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
4 s
Max Speed
-
Max Speed
200 km/h
Torque
560 - 850 Nm
Torque
700 Nm
Number of Cylinders
6 - 8
Number of Cylinders
-
Power kW
247 - 467 kW
Power kW
360 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
-

General
Model Year
2026
Model Year
2023
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
NIO
Is the Mercedes S-Class offered with different drivetrains?

The Mercedes S-Class is offered with All-Wheel Drive or Rear-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.