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Porsche Cayman vs Mercedes CLA Coupe comparison
Compare performance (500 HP vs 354 HP), boot space and price (136,000 £ vs 39,600 £ ) at a glance. Find out which car is the better choice for you – Porsche Cayman or Mercedes CLA Coupe?
Porsche Cayman vs Mercedes CLA Coupe: Key differences
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
Cayman
Costs and Efficiency:
Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.
Mercedes CLA Coupe is substantially cheaper – starting at 39,600 £ , while the Porsche Cayman costs 136,000 £ . That’s a price difference of around 96,392 £.
Fuel consumption also shows a difference: the Mercedes CLA Coupe uses 4.9 L/100km and is substantially more efficient than the Porsche Cayman with 13 L/100km. The difference is about 8.1 L/100km.
CLA Coupe
Engine and Performance:
Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.
When it comes to engine power, the Porsche Cayman offers noticeably more power – delivering 500 HP compared to 354 HP. That’s roughly 146 HP more horsepower.
When accelerating from 0 to 100 km/h, the Porsche Cayman is substantially quicker – completing the sprint in 3.4 s, while the Mercedes CLA Coupe takes 4.9 s. That’s about 1.5 s quicker.
There’s also a difference in torque: the Mercedes CLA Coupe delivers moderately more torque with 515 Nm compared to 450 Nm. That’s about 65 Nm more.
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.
Seats: Mercedes CLA Coupe offers more seats – 5 vs 2.
In terms of curb weight, Porsche Cayman is moderately lighter – 1,490 kg compared to 1,695 kg. The difference is around 205 kg.
Looking at boot space, the Mercedes CLA Coupe offers clearly more boot space – 405 L compared to 184 L. That’s a difference of about 221 L.
When it comes to payload, the Mercedes CLA Coupe carries clearly more – 455 kg compared to 281 kg. That’s a difference of about 174 kg.
Who wins the race in the data check?
The Mercedes CLA Coupe 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.
from £39,600
Mercedes CLA Coupe
Porsche Cayman
Mercedes CLA Coupe
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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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.
details
Mercedes CLA Coupe
The Mercedes CLA Coupe cuts a rakish silhouette that blends sporty coupe lines with everyday practicality, giving style-minded buyers a premium image without shouting. Inside it feels more luxurious than its size suggests, with a slick cabin, intuitive tech and a composed ride — the kind of car that parties in the city and still shows up polished on Sunday morning.
details
Porsche Cayman
Mercedes CLA Coupe
Costs and Consumption |
|
|---|---|
|
Price
136,000 £
|
Price
39,600 - 60,000 £
|
|
Consumption L/100km
13 L/100km
|
Consumption L/100km
4.9 - 5.3 L/100km
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
12.3 - 12.7 kWh/100km
|
|
Electric Range
-
|
Electric Range
542 - 792 km
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
295 g/km
|
co2
0 - 120 g/km
|
|
Fuel tank capacity
54 L
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
Coupe
|
Body Type
Coupe
|
|
Seats
2
|
Seats
5
|
|
Doors
2
|
Doors
-
|
|
Curb weight
1,490 kg
|
Curb weight
1,695 - 2,135 kg
|
|
Trunk capacity
184 L
|
Trunk capacity
405 L
|
|
Length
4,456 mm
|
Length
-
|
|
Width
1,822 mm
|
Width
1,855 mm
|
|
Height
1,267 mm
|
Height
-
|
|
Max trunk capacity
272 L
|
Max trunk capacity
-
|
|
Payload
281 kg
|
Payload
430 - 455 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Petrol
|
Engine Type
Electric, Full Hybrid
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Dual-Clutch Automatic
|
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
|
|
Drive Type
Rear-Wheel Drive
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive, Front-Wheel Drive
|
|
Power HP
500 HP
|
Power HP
156 - 354 HP
|
|
Acceleration 0-100km/h
3.4 s
|
Acceleration 0-100km/h
4.9 - 8.8 s
|
|
Max Speed
315 km/h
|
Max Speed
-
|
|
Torque
450 Nm
|
Torque
280 - 515 Nm
|
|
Number of Cylinders
6
|
Number of Cylinders
4
|
|
Power kW
368 kW
|
Power kW
115 - 260 kW
|
|
Engine capacity
3,996 cm3
|
Engine capacity
1,499 cm3
|
General |
|
|---|---|
|
Model Year
2021
|
Model Year
2,025 - 2,026
|
|
CO2 Efficiency Class
G
|
CO2 Efficiency Class
A, C, D
|
|
Brand
Porsche
|
Brand
Mercedes-Benz
|
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.