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Mercedes S-Class vs Genesis G90 comparison

Compare performance (635 HP vs 415 HP), boot space and price (104,000 £ vs 96,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes S-Class or Genesis G90?

Mercedes S-Class vs Genesis G90: Key differences

Mercedes S-Class

  • noticeably more power
  • clearly more efficient
  • clearly quicker 0–100 km/h
  • marginally lighter
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Genesis G90

  • only slightly cheaper
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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.

Genesis G90 is only slightly cheaper – starting at 96,200 £ , while the Mercedes S-Class costs 104,000 £ . That’s a price difference of around 7,865 £.

Fuel consumption also shows a difference: the Mercedes S-Class uses 2.2 L/100km and is clearly more efficient than the Genesis G90 with 11 L/100km. The difference is about 8.8 L/100km.

G90

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 S-Class offers noticeably more power – delivering 635 HP compared to 415 HP. That’s roughly 220 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes S-Class is clearly quicker – completing the sprint in 4 s, while the Genesis G90 takes 5.2 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Mercedes S-Class delivers clearly more torque with 850 Nm compared to 549 Nm. That’s about 301 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 marginally lighter – 2,165 kg compared to 2,260 kg. The difference is around 95 kg.

When it comes to payload, the Mercedes S-Class carries noticeably more – 660 kg compared to 505 kg. That’s a difference of about 155 kg.

Who wins the race in the data check?

The Mercedes S-Class 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 £104,000
S-Class

Mercedes S-Class

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 336 - 635 HP
  • Consumption L/100km : 2.2 - 11 L/100km
  • Electric Range : 98 - 118 km
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Mercedes S-Class
Genesis G90

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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Genesis G90

The Genesis G90 is the brand's flagship limousine, wrapping passengers in a serene cabin that feels bespoke and quietly confident. It delivers a cultured ride, sumptuous materials and clever tech smarts, all served with an understated swagger that makes rear-seat commuters feel like they've finally arrived.

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Reviews Genesis G90

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

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Mercedes S-Class
Genesis G90

Costs and Consumption
Price
104,000 - 201,400 £
Price
96,200 - 108,200 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
11 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
98 - 118 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
50 - 252 g/km
co2
248 g/km
Fuel tank capacity
-
Fuel tank capacity
73 L

Dimensions and Body
Body Type
Sedan
Body Type
Sedan
Seats
5
Seats
4 - 5
Doors
-
Doors
4
Curb weight
2,165 - 2,650 kg
Curb weight
2,260 - 2,470 kg
Trunk capacity
-
Trunk capacity
368 L
Length
-
Length
5,275 - 5,465 mm
Width
1,921 mm
Width
1,930 mm
Height
-
Height
1,490 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
420 - 660 kg
Payload
370 - 505 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Petrol MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 635 HP
Power HP
415 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
5.2 - 5.4 s
Max Speed
-
Max Speed
250 km/h
Torque
560 - 850 Nm
Torque
549 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6
Power kW
247 - 467 kW
Power kW
305 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
3,470 cm3

General
Model Year
2026
Model Year
2023
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Genesis
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.