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Hyundai IONIQ 9 vs Mercedes EQS SUV comparison

Compare performance (428 HP vs 658 HP), boot space and price (59,900 £ vs 95,000 £ ) at a glance. Find out which car is the better choice for you – Hyundai IONIQ 9 or Mercedes EQS SUV?

Hyundai IONIQ 9 vs Mercedes EQS SUV: Key differences

Hyundai IONIQ 9

  • considerably cheaper
  • very slightly lighter
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Mercedes EQS SUV

  • visibly more power
  • marginally more efficient
  • moderately more electric range
  • a bit quicker 0–100 km/h
  • substantially more trunk space
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By Achim Sedelmaier

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

IONIQ 9

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Hyundai IONIQ 9 is considerably cheaper – starting at 59,900 £ , while the Mercedes EQS SUV costs 95,000 £ . That’s a price difference of around 35,101 £.

In terms of energy consumption, the Mercedes EQS SUV is marginally more efficient: consuming 19.6 kWh/100km compared to 19.9 kWh/100km for the Hyundai IONIQ 9. That’s a difference of about 0.3 kWh/100km.

As for electric range, the Mercedes EQS SUV offers moderately more range – reaching up to 695 km, about 75 km more than the Hyundai IONIQ 9.

EQS SUV

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 EQS SUV offers visibly more power – delivering 658 HP compared to 428 HP. That’s roughly 230 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes EQS SUV is a bit quicker – completing the sprint in 4.4 s, while the Hyundai IONIQ 9 takes 5.2 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the Mercedes EQS SUV delivers visibly more torque with 950 Nm compared to 700 Nm. That’s about 250 Nm more.

Space and Everyday Use:

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

Seats: Hyundai IONIQ 9 offers more seats – 7 vs 5.

In terms of curb weight, Hyundai IONIQ 9 is very slightly lighter – 2,594 kg compared to 2,695 kg. The difference is around 101 kg.

Looking at boot space, the Mercedes EQS SUV offers substantially more boot space – 645 L compared to 338 L. That’s a difference of about 307 L.

When it comes to payload, the Hyundai IONIQ 9 carries a bit more – 643 kg compared to 570 kg. That’s a difference of about 73 kg.

Who wins the race in the data check?

The Mercedes EQS SUV is clearly superior overall 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 £95,000
EQS SUV

Mercedes EQS SUV

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive, Rear-Wheel Drive
  • Power HP 360 - 658 HP
  • Consumption kWh/100km 19.6 - 21.9 kWh/100km
  • Electric Range 615 - 695 km
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Hyundai IONIQ 9
Mercedes EQS SUV

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Hyundai IONIQ 9

The Hyundai IONIQ 9 is a bold step forward in the automotive world, combining cutting-edge electric technology with a sleek and modern design. This model stands out with its spacious interior and advanced features, ensuring both comfort and convenience for drivers and passengers alike. As Hyundai pushes the envelope in eco-friendly innovation, the IONIQ 9 represents the future of sustainable driving with its impressive range and performance capabilities.

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Reviews Hyundai IONIQ 9

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Mercedes EQS SUV

The Mercedes EQS SUV blends limousine-level quiet and luxury with the commanding presence of an SUV, wrapping passengers in sumptuous materials and a futuristic, screen-dominated cabin. It drives with serene confidence and delivers the kind of effortless refinement that makes city commutes and long trips feel like first-class experiences — just be prepared for attention wherever you park it.

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Hyundai IONIQ 9
Mercedes EQS SUV

Costs and Consumption
Price
59,900 - 75,500 £
Price
95,000 - 212,100 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
19.9 - 20.6 kWh/100km
Consumption kWh/100km
19.6 - 21.9 kWh/100km
Electric Range
600 - 620 km
Electric Range
615 - 695 km
Battery Capacity
-
Battery Capacity
108.4 - 118 kWh
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
7
Seats
4 - 5
Doors
-
Doors
5
Curb weight
2,594 - 2,689 kg
Curb weight
2,695 - 3,075 kg
Trunk capacity
338 L
Trunk capacity
440 - 645 L
Length
-
Length
5,125 mm
Width
1,980 mm
Width
1,959 - 2,034 mm
Height
-
Height
1,718 - 1,721 mm
Max trunk capacity
-
Max trunk capacity
2,100 L
Payload
586 - 643 kg
Payload
425 - 570 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
218 - 428 HP
Power HP
360 - 658 HP
Acceleration 0-100km/h
5.2 - 9.4 s
Acceleration 0-100km/h
4.4 - 6.8 s
Max Speed
-
Max Speed
210 km/h
Torque
350 - 700 Nm
Torque
568 - 950 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
160 - 315 kW
Power kW
265 - 484 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2025
Model Year
2024
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
Hyundai
Brand
Mercedes-Benz
What drivetrain options does the Hyundai IONIQ 9 have?

Available configurations include 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.