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Mercedes GLC vs Hyundai IONIQ 9 comparison

Compare performance (680 HP vs 428 HP), boot space and price (50,300 £ vs 58,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLC or Hyundai IONIQ 9?

Mercedes GLC vs Hyundai IONIQ 9: Key differences

Mercedes GLC

4.4 (11 Reviews)
rate
  • a bit cheaper
  • visibly more power
  • markedly more efficient
  • moderately more electric range
  • considerably quicker 0–100 km/h
  • clearly lighter
  • considerably more trunk space

Hyundai IONIQ 9

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

GLC

Costs and Efficiency:

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

Mercedes GLC is a bit cheaper – starting at 50,300 £ , while the Hyundai IONIQ 9 costs 58,700 £ . That’s a price difference of around 8,387 £.

In terms of energy consumption, the Mercedes GLC is markedly more efficient: consuming 14.9 kWh/100km compared to 19.9 kWh/100km for the Hyundai IONIQ 9. That’s a difference of about 5 kWh/100km.

As for electric range, the Mercedes GLC offers moderately more range – reaching up to 714 km, about 94 km more than the Hyundai IONIQ 9.

IONIQ 9

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 GLC offers visibly more power – delivering 680 HP compared to 428 HP. That’s roughly 252 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLC is considerably quicker – completing the sprint in 3.5 s, while the Hyundai IONIQ 9 takes 5.2 s. That’s about 1.7 s quicker.

There’s also a difference in torque: the Mercedes GLC delivers clearly more torque with 1,020 Nm compared to 700 Nm. That’s about 320 Nm more.

GLC

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, Mercedes GLC is clearly lighter – 1,910 kg compared to 2,594 kg. The difference is around 684 kg.

Looking at boot space, the Mercedes GLC offers considerably more boot space – 620 L compared to 338 L. That’s a difference of about 282 L.

When it comes to payload, the Hyundai IONIQ 9 carries only slightly more – 643 kg compared to 600 kg. That’s a difference of about 43 kg.

Who wins the race in the data check?

The Mercedes GLC is far ahead 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 £50,300
GLC

Mercedes GLC

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 186 - 680 HP
  • Consumption L/100km : 1.6 - 9.7 L/100km
  • Consumption kWh/100km : 14.9 - 16.6 kWh/100km
  • Electric Range : 12 - 714 km
details

Frequently compared as well

Mercedes GLC
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Hyundai IONIQ 9

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLC

The Mercedes GLC blends plush cabin comfort and composed road manners into an SUV that feels more grown-up than it looks. It won’t shout for attention, but will quietly please buyers who want refinement, usable space and a touch of luxury without the drama.

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Reviews Mercedes GLC

4.4 (11 Reviews)
rate
Marek
2 Jan 2026, 18:32:30

There’s something about a Mercedes — you have to take it for a spin to feel it and understand why it’s special.

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

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

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

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Hyundai IONIQ 9

Costs and Consumption
Price
50,300 - 126,600 £
Price
58,700 - 74,400 £
Consumption L/100km
1.6 - 9.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
14.9 - 16.6 kWh/100km
Consumption kWh/100km
19.9 - 20.6 kWh/100km
Electric Range
12 - 714 km
Electric Range
600 - 620 km
Battery Capacity
94 kWh
Battery Capacity
-
co2
0 - 221 g/km
co2
0 g/km
Fuel tank capacity
62 - 65 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
7
Doors
5
Doors
-
Curb weight
1,910 - 2,535 kg
Curb weight
2,594 - 2,689 kg
Trunk capacity
390 - 620 L
Trunk capacity
338 L
Length
4,716 - 4,845 mm
Length
-
Width
1,890 - 1,913 mm
Width
1,980 mm
Height
1,603 - 1,644 mm
Height
-
Max trunk capacity
1,490 - 1,740 L
Max trunk capacity
-
Payload
475 - 600 kg
Payload
586 - 643 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
186 - 680 HP
Power HP
218 - 428 HP
Acceleration 0-100km/h
3.5 - 9 s
Acceleration 0-100km/h
5.2 - 9.4 s
Max Speed
210 - 275 km/h
Max Speed
-
Torque
320 - 1,020 Nm
Torque
350 - 700 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
137 - 500 kW
Power kW
160 - 315 kW
Engine capacity
1,991 - 2,989 cm3
Engine capacity
-

General
Model Year
2,025 - 2,026
Model Year
2,025
CO2 Efficiency Class
F, G, D, B, E, A
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
Hyundai
Is the Mercedes GLC offered with different drivetrains?

Available configurations include 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.