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Mercedes S-Class vs Porsche 911 Coupe comparison

Compare performance (635 HP vs 711 HP), boot space and price (104,000 £ vs 125,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes S-Class or Porsche 911 Coupe?

Mercedes S-Class vs Porsche 911 Coupe: Key differences

Mercedes S-Class

  • noticeably cheaper
  • considerably more efficient
  • clearly more trunk space
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Porsche 911 Coupe

  • a bit more power
  • clearly quicker 0–100 km/h
  • substantially lighter
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By Achim Sedelmaier

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

S-Class

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes S-Class is noticeably cheaper – starting at 104,000 £ , while the Porsche 911 Coupe costs 125,800 £ . That’s a price difference of around 21,809 £.

Fuel consumption also shows a difference: the Mercedes S-Class uses 2.2 L/100km and is considerably more efficient than the Porsche 911 Coupe with 10.3 L/100km. The difference is about 8.1 L/100km.

911 Coupe

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Porsche 911 Coupe offers a bit more power – delivering 711 HP compared to 635 HP. That’s roughly 76 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Coupe is clearly quicker – completing the sprint in 2.5 s, while the Mercedes S-Class takes 4 s. That’s about 1.5 s quicker.

There’s also a difference in torque: the Mercedes S-Class delivers only slightly more torque with 850 Nm compared to 800 Nm. That’s about 50 Nm more.

S-Class

Space and Everyday Use:

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

Seats: Mercedes S-Class offers more seats – 5 vs 2.

In terms of curb weight, Porsche 911 Coupe is substantially lighter – 1,536 kg compared to 2,165 kg. The difference is around 629 kg.

Looking at boot space, the Mercedes S-Class offers clearly more boot space – 530 L compared to 373 L. That’s a difference of about 157 L.

When it comes to payload, the Mercedes S-Class carries substantially more – 660 kg compared to 310 kg. That’s a difference of about 350 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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Frequently compared as well

Mercedes S-Class
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Mercedes S-Class
Porsche 911 Coupe

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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Porsche 911 Coupe

The Porsche 911 Coupe remains the iconic sports car you buy when you want a thrilling weekend weapon that still behaves like a civilized companion during the weekdays. Its classic silhouette and razor‑sharp handling deliver a grin-inducing drive every time, while the polished interior and intuitive controls remind you this is a car built for drivers, not just headlines.

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Reviews Porsche 911 Coupe

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Mercedes S-Class
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Mercedes S-Class
Porsche 911 Coupe

Costs and Consumption
Price
104,000 - 201,400 £
Price
125,800 - 301,000 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
10.3 - 13.8 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
233 - 312 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
-
Curb weight
2,165 - 2,650 kg
Curb weight
1,536 - 1,815 kg
Trunk capacity
345 - 530 L
Trunk capacity
373 L
Length
-
Length
-
Width
1,921 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
420 - 660 kg
Payload
228 - 310 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
336 - 635 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
2.5 - 4.5 s
Max Speed
-
Max Speed
-
Torque
560 - 850 Nm
Torque
450 - 800 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6
Power kW
247 - 467 kW
Power kW
290 - 523 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2026
Model Year
2,024 - 2,026
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Porsche
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.