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Alfa Romeo Giulia vs Porsche Cayman comparison

Compare performance (210 HP vs 500 HP), boot space and price (48,000 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – Alfa Romeo Giulia or Porsche Cayman?

Alfa Romeo Giulia vs Porsche Cayman: Key differences

Alfa Romeo Giulia

4.1 (2 Reviews)
rate
  • considerably cheaper
  • substantially more efficient
  • clearly more trunk space

Porsche Cayman

  • clearly more power
  • clearly quicker 0–100 km/h
  • moderately lighter

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

Giulia

Costs and Efficiency:

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

Alfa Romeo Giulia is considerably cheaper – starting at 48,000 £ , while the Porsche Cayman costs 136,000 £ . That’s a price difference of around 88,028 £.

Fuel consumption also shows a difference: the Alfa Romeo Giulia uses 5.4 L/100km and is substantially more efficient than the Porsche Cayman with 13 L/100km. The difference is about 7.6 L/100km.

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 Porsche Cayman offers clearly more power – delivering 500 HP compared to 210 HP. That’s roughly 290 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayman is clearly quicker – completing the sprint in 3.4 s, while the Alfa Romeo Giulia takes 6.8 s. That’s about 3.4 s quicker.

There’s also a difference in torque: the Alfa Romeo Giulia delivers very slightly more torque with 470 Nm compared to 450 Nm. That’s about 20 Nm more.

Giulia

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: Alfa Romeo Giulia offers more seats – 5 vs 2.

In terms of curb weight, Porsche Cayman is moderately lighter – 1,490 kg compared to 1,640 kg. The difference is around 150 kg.

Looking at boot space, the Alfa Romeo Giulia offers clearly more boot space – 480 L compared to 184 L. That’s a difference of about 296 L.

When it comes to payload, the Alfa Romeo Giulia carries substantially more – 535 kg compared to 281 kg. That’s a difference of about 254 kg.

Who wins the race in the data check?

The Alfa Romeo Giulia 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 £48,000
Giulia

Alfa Romeo Giulia

  • Engine Type : Diesel
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 210 HP
  • Consumption L/100km : 5.4 L/100km
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Alfa Romeo Giulia
Porsche Cayman

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Alfa Romeo Giulia

The Alfa Romeo Giulia captivates with its stunning Italian design and dynamic performance, representing a perfect blend of elegance and sportiness. Its engaging driving experience, characterised by precise handling and responsive steering, appeals to enthusiasts who crave the thrill of the road. Inside, the Giulia showcases a beautifully crafted interior that combines luxury with cutting-edge technology, making every journey a delight.

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Reviews Alfa Romeo Giulia

4.1 (2 Reviews)
rate

No reviews yet. Share your experience and help others decide.

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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Reviews Porsche Cayman

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Alfa Romeo Giulia
Porsche Cayman

Costs and Consumption
Price
48,000 - 52,700 £
Price
136,000 £
Consumption L/100km
5.4 L/100km
Consumption L/100km
13 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
141 g/km
co2
295 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Sedan
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
2
Curb weight
1,640 kg
Curb weight
1,490 kg
Trunk capacity
480 L
Trunk capacity
184 L
Length
-
Length
4,456 mm
Width
1,860 mm
Width
1,822 mm
Height
-
Height
1,267 mm
Max trunk capacity
-
Max trunk capacity
272 L
Payload
535 kg
Payload
281 kg

Engine and Performance
Engine Type
Diesel
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
210 HP
Power HP
500 HP
Acceleration 0-100km/h
6.8 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
315 km/h
Torque
470 Nm
Torque
450 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
154 kW
Power kW
368 kW
Engine capacity
2,143 cm3
Engine capacity
3,996 cm3

General
Model Year
2,025
Model Year
2,021
CO2 Efficiency Class
E
CO2 Efficiency Class
G
Brand
Alfa Romeo
Brand
Porsche
Is the Alfa Romeo Giulia offered with different drivetrains?

The Alfa Romeo Giulia is offered with 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.