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Mercedes EQS vs Porsche Cayman comparison

Compare performance (585 HP vs 500 HP), boot space and price (80,900 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – Mercedes EQS or Porsche Cayman?

Mercedes EQS vs Porsche Cayman: Key differences

Mercedes EQS

  • considerably cheaper
  • slightly more power
  • substantially more trunk space
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Porsche Cayman

  • markedly quicker 0–100 km/h
  • considerably lighter
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By Achim Sedelmaier

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

EQS

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mercedes EQS is considerably cheaper – starting at 80,900 £ , while the Porsche Cayman costs 136,000 £ . That’s a price difference of around 55,112 £.

Cayman

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 EQS offers slightly more power – delivering 585 HP compared to 500 HP. That’s roughly 85 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayman is markedly quicker – completing the sprint in 3.4 s, while the Mercedes EQS takes 4.1 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the Mercedes EQS delivers significantly more torque with 800 Nm compared to 450 Nm. That’s about 350 Nm more.

EQS

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 EQS offers more seats – 5 vs 2.

In terms of curb weight, Porsche Cayman is considerably lighter – 1,490 kg compared to 2,550 kg. The difference is around 1,060 kg.

Looking at boot space, the Mercedes EQS offers substantially more boot space – 610 L compared to 184 L. That’s a difference of about 426 L.

When it comes to payload, the Mercedes EQS carries significantly more – 570 kg compared to 281 kg. That’s a difference of about 289 kg.

Who wins the race in the data check?

The Mercedes EQS holds a decisive overall lead 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 £80,900
EQS

Mercedes EQS

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 367 - 585 HP
  • Consumption kWh/100km : 15.5 - 16.3 kWh/100km
  • Electric Range : 810 - 920 km
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Porsche Cayman

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes EQS

The Mercedes EQS is a silent, spaceship-like flagship that turns electric luxury into zen on wheels, wrapped in a swooping design that insists on being admired. Inside it’s all glassy screens and soft-touch surfaces that make long trips feel like first class, and the driving experience is composed and effortless — like a courteous butler with an electric heart.

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Porsche Cayman

The Porsche Cayman stands out as a quintessential sports car, blending sleek design with dynamic handling. Its mid-engine layout provides an excellent balance and sharp agility that driving enthusiasts crave. Inside, the Cayman offers a refined and driver-focused interior, ensuring that every journey is an exhilarating experience.

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Porsche Cayman

Costs and Consumption
Price
80,900 - 117,500 £
Price
136,000 £
Consumption L/100km
-
Consumption L/100km
13 L/100km
Consumption kWh/100km
15.5 - 16.3 kWh/100km
Consumption kWh/100km
-
Electric Range
810 - 920 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
295 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Hatchback
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
2
Curb weight
2,550 - 2,660 kg
Curb weight
1,490 kg
Trunk capacity
610 L
Trunk capacity
184 L
Length
-
Length
4,456 mm
Width
1,926 mm
Width
1,822 mm
Height
-
Height
1,267 mm
Max trunk capacity
-
Max trunk capacity
272 L
Payload
545 - 570 kg
Payload
281 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
367 - 585 HP
Power HP
500 HP
Acceleration 0-100km/h
4.1 - 6.2 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
315 km/h
Torque
505 - 800 Nm
Torque
450 Nm
Number of Cylinders
-
Number of Cylinders
6
Power kW
270 - 430 kW
Power kW
368 kW
Engine capacity
-
Engine capacity
3,996 cm3

General
Model Year
2026
Model Year
2021
CO2 Efficiency Class
A
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Porsche
What drive types are available for the Mercedes EQS?

The Mercedes EQS is offered with Rear-Wheel Drive or All-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.