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Mercedes S Class vs Porsche Boxster comparison

Compare performance (585 HP vs 500 HP), boot space and price (104000 £ vs 136000 £ ) at a glance. Find out which car is the better choice for you – Mercedes S Class or Porsche Boxster?

Mercedes S Class vs Porsche Boxster: Key differences

Mercedes S Class

  • clearly perceptible cheaper
  • to a small extent more power
  • significantly more efficient

Porsche Boxster

  • somewhat quicker from 0–100 km/h
  • decisively lighter

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.

Mercedes S Class has a clearly perceptible advantage in terms of price – it starts at 104000 £ , while the Porsche Boxster costs 136000 £ . That’s a price difference of around 32009 £.

Fuel consumption also shows a difference: Mercedes S Class manages with 2.20 L and is therefore significantly more efficient than the Porsche Boxster with 12.70 L. The difference is about 10.50 L per 100 km.

Boxster

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 Mercedes S Class has a to a small extent edge – offering 585 HP compared to 500 HP. That’s roughly 85 HP more horsepower.

In acceleration from 0 to 100 km/h, the Porsche Boxster is somewhat quicker – completing the sprint in 3.40 s, while the Mercedes S Class takes 4 s. That’s about 0.60 s faster.

There’s also a difference in torque: Mercedes S Class pulls noticeable stronger with 750 Nm compared to 450 Nm. That’s about 300 Nm difference.

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.

Seats: Mercedes S Class offers decisively more seating capacity – 5 vs 2.

In curb weight, Porsche Boxster is decisively lighter – 1485 kg compared to 2165 kg. The difference is around 680 kg.

When it comes to payload, Mercedes S Class clearly takes the win – 660 kg compared to 270 kg. That’s a difference of about 390 kg.

Who wins the race in the data check?

The Mercedes S Class is decisively ahead 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.

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Mercedes S Class
Porsche Boxster

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £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 - 585 HP
  • Consumption L/100km : 2.2 - 10.6 L
  • Electric Range : 102 - 118 km
details

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.

details
21C0428_003
21C0428_004
21C0613_021
21C0613_037
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21C0613_043

Porsche Boxster

The Porsche Boxster epitomizes the essence of a pure, open-top driving experience with its mid-engine roadster design. Known for its agile handling and dynamic performance, the Boxster seamlessly blends luxury with thrilling precision on the road. Its unmistakable styling and superior engineering continue to captivate automotive enthusiasts who crave a visceral connection to the art of driving.

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Reviews Mercedes S Class

Reviews Porsche Boxster

Mercedes S Class
Porsche Boxster

Costs and Consumption
Price
104000 - 139100 £
Price
136000 £
Consumption L/100km
2.2 - 10.6 L
Consumption L/100km
12.70 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
102 - 118 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
50 - 241 g/km
co2
288 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Sedan
Body Type
Roadster
Seats
5
Seats
2
Doors
-
Doors
2
Curb weight
2165 - 2515 kg
Curb weight
1485 kg
Trunk capacity
-
Trunk capacity
122 L
Length
-
Length
4418 mm
Width
1921 mm
Width
1822 mm
Height
-
Height
1252 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
555 - 660 kg
Payload
270 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
336 - 585 HP
Power HP
500 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
3.40 s
Max Speed
-
Max Speed
308 km/h
Torque
560 - 750 Nm
Torque
450 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6
Power kW
247 - 430 kW
Power kW
368 kW
Engine capacity
2989 - 3982 cm3
Engine capacity
3996 cm3

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

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What drive types are available for the Mercedes S Class?

The Mercedes S Class is available as All-Wheel Drive or Rear-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.