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.
Kia EV9 has a clearly advantage in terms of price – it starts at 53100 £, while the Mercedes GLS costs 96100 £. That’s a price difference of around 42986 £.
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 GLS has a to a small extent edge – offering 634 HP compared to 508 HP. That’s roughly 126 HP more horsepower.
In acceleration from 0 to 100 km/h, the Mercedes GLS is hardly perceptible quicker – completing the sprint in 4.20 s, while the Kia EV9 takes 4.60 s. That’s about 0.40 s faster.
In terms of top speed, the Mercedes GLS performs evident better – reaching 280 km/h, while the Kia EV9 tops out at 220 km/h. The difference is around 60 km/h.
There’s also a difference in torque: Mercedes GLS pulls to a small extent stronger with 850 Nm compared to 740 Nm. That’s about 110 Nm difference.
Whether family car or daily driver – which one offers more room, flexibility and comfort?
Seats: offers more seating capacity – vs .
In curb weight, Kia EV9 is barely noticeable lighter – 2392 kg compared to 2550 kg. The difference is around 158 kg.
In terms of boot space, the Mercedes GLS offers minimal more room – 355 L compared to 333 L. That’s a difference of about 22 L.
In maximum load capacity, the Mercedes GLS performs slight better – up to 2400 L, which is about 7 L more than the Kia EV9.
When it comes to payload, Mercedes GLS to a small extent takes the win – 695 kg compared to 615 kg. That’s a difference of about 80 kg.
Overall, the Kia EV9 shows itself to be outperforms in nearly all aspects and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.
The Kia EV9 is a bold, boxy electric SUV that looks like it could swallow your luggage and the in‑laws, with an interior that feels more lounge than cockpit and a presence that makes smaller rivals suddenly feel shy. On the road it delivers calm long‑distance composure with enough shove to keep overtakes effortless, and its tech and practicality make it an easy, sensible choice for buyers who want electric without compromise.
detailsThe GLS — usually just called the GLS — is Mercedes' flagship SUV, wrapping limousine-like comfort and commanding road presence into a smart, family-ready package. It pampers occupants with a hushed cabin, premium materials and intuitive tech, while still managing to feel confident and a little indulgent on the daily commute.
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Costs and Consumption |
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Price
53100 - 78000 £
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Price
96100 - 208500 £
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Consumption L/100km
-
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Consumption L/100km
7.8 - 13.7 L
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Consumption kWh/100km
19.5 - 22.8 kWh
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Consumption kWh/100km
-
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Electric Range
443 - 563 km
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Electric Range
-
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Battery Capacity
76.1 - 99.8 kWh
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Battery Capacity
-
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co2
0 g/km
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co2
204 - 310 g/km
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Fuel tank capacity
-
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Fuel tank capacity
90 L
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Dimensions and Body |
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Body Type
SUV
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Body Type
SUV
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Seats
6 - 7
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Seats
7
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Doors
5
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Doors
5
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Curb weight
2392 - 2664 kg
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Curb weight
2550 - 2825 kg
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Trunk capacity
333 L
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Trunk capacity
355 L
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Length
5010 - 5015 mm
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Length
5208 - 5233 mm
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Width
1980 mm
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Width
1956 mm
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Height
1755 - 1780 mm
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Height
1782 - 1838 mm
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Max trunk capacity
2318 - 2393 L
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Max trunk capacity
2400 L
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Payload
542 - 615 kg
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Payload
445 - 695 kg
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Engine and Performance |
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Engine Type
Electric
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Engine Type
Petrol MHEV, Diesel MHEV
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Transmission
Automatic
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Transmission
Automatic
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Transmission Detail
Reduction Gearbox
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Transmission Detail
Automatic Gearbox
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Drive Type
All-Wheel Drive, Rear-Wheel Drive
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Drive Type
All-Wheel Drive
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Power HP
204 - 508 HP
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Power HP
333 - 634 HP
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Acceleration 0-100km/h
4.6 - 9.4 s
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Acceleration 0-100km/h
4.2 - 6.7 s
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Max Speed
185 - 220 km/h
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Max Speed
238 - 280 km/h
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Torque
350 - 740 Nm
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Torque
500 - 850 Nm
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Number of Cylinders
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Number of Cylinders
6 - 8
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Power kW
150 - 374 kW
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Power kW
245 - 466 kW
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Engine capacity
-
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Engine capacity
2989 - 3982 cm3
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General |
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Model Year
2023 - 2025
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Model Year
2024 - 2025
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CO2 Efficiency Class
A
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CO2 Efficiency Class
G
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Brand
Kia
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Brand
Mercedes-Benz
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The Kia EV9 is offered with All-Wheel Drive or Rear-Wheel Drive.
The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.