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Mercedes S Class vs Subaru Impreza comparison

Compare performance (635 HP vs 136 HP), boot space and price (104,000 £ vs 30,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes S Class or Subaru Impreza?

Mercedes S Class vs Subaru Impreza: Key differences

Mercedes S Class

  • clearly more power
  • significantly more efficient
  • clearly quicker 0–100 km/h
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Subaru Impreza

5 (1 Reviews)
rate
  • substantially cheaper
  • markedly lighter
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By Achim Sedelmaier

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

S Class

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Subaru Impreza is substantially cheaper – starting at 30,200 £ , while the Mercedes S Class costs 104,000 £ . That’s a price difference of around 73,797 £.

Fuel consumption also shows a difference: the Mercedes S Class uses 2.2 L/100km and is significantly more efficient than the Subaru Impreza with 7.3 L/100km. The difference is about 5.1 L/100km.

Impreza

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 clearly more power – delivering 635 HP compared to 136 HP. That’s roughly 499 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 Subaru Impreza takes 10.6 s. That’s about 6.6 s quicker.

There’s also a difference in torque: the Mercedes S Class delivers substantially more torque with 850 Nm compared to 182 Nm. That’s about 668 Nm more.

S Class

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, Subaru Impreza is markedly lighter – 1,574 kg compared to 2,165 kg. The difference is around 591 kg.

When it comes to payload, the Mercedes S Class carries clearly more – 660 kg compared to 526 kg. That’s a difference of about 134 kg.

Who wins the race in the data check?

The Mercedes S Class stands well ahead of its rival 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
Mercedes S Class
Subaru Impreza

Costs and Consumption

View detailed analysis

Engine and Performance

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Dimensions and Body

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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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Subaru Impreza

The Subaru Impreza feels like a trusty companion built for everyday adventures, shrugging off bad weather and awkward parking with quiet competence. It won't win any style contests, but its sensible cabin, grippy manners, and honest driving character make it a smart pick for buyers who prefer substance over flash.

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Mercedes S Class
Subaru Impreza

Costs and Consumption

Price
104,000 - 201,400 £
Price
30,200 - 32,500 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
7.3 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
166 g/km
Fuel tank capacity
-
Fuel tank capacity
48 L

Dimensions and Body

Body Type
Sedan
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
2,165 - 2,650 kg
Curb weight
1,574 - 1,599 kg
Trunk capacity
-
Trunk capacity
315 L
Length
-
Length
4,490 mm
Width
1,921 mm
Width
1,780 mm
Height
-
Height
1,515 mm
Max trunk capacity
-
Max trunk capacity
1,297 - 1,314 L
Payload
420 - 660 kg
Payload
501 - 526 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
CVT
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 635 HP
Power HP
136 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
10.6 s
Max Speed
-
Max Speed
199 km/h
Torque
560 - 850 Nm
Torque
182 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
247 - 467 kW
Power kW
100 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
1,995 cm3

General

Model Year
2026
Model Year
2024
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
F
Brand
Mercedes-Benz
Brand
Subaru
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.