@ Alfa Romeo / Stellantis Media
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Alfa Romeo Giulia vs Porsche 911 Convertible – Differences & prices compared

Compare performance, boot capacity, efficiency and price at a glance.
Find out which car is the better choice for you – Alfa Romeo Giulia or Porsche 911 Convertible?

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

Giulia @ Alfa Romeo / Stellantis Media

Costs and Efficiency:

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

Alfa Romeo Giulia has a convincingly advantage in terms of price – it starts at 48000 £, while the Porsche 911 Convertible costs 122400 £. That’s a price difference of around 74400 £.

Fuel consumption also shows a difference: Alfa Romeo Giulia manages with 5.40 L and is therefore clearly more efficient than the Porsche 911 Convertible with 10.30 L. The difference is about 4.90 L per 100 km.

Giulia @ Alfa Romeo / Stellantis Media

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 911 Convertible has a decisively edge – offering 711 HP compared to 210 HP. That’s roughly 501 HP more horsepower.

In acceleration from 0 to 100 km/h, the Porsche 911 Convertible is significantly quicker – completing the sprint in 2.60 s, while the Alfa Romeo Giulia takes 6.80 s. That’s about 4.20 s faster.

In terms of top speed, the Porsche 911 Convertible performs noticeable better – reaching 322 km/h, while the Alfa Romeo Giulia tops out at 235 km/h. The difference is around 87 km/h.

There’s also a difference in torque: Porsche 911 Convertible pulls decisively stronger with 800 Nm compared to 470 Nm. That’s about 330 Nm difference.

Giulia @ Alfa Romeo / Stellantis Media

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 slightly more seating capacity – 5 vs 4.

In curb weight, Alfa Romeo Giulia is minimal lighter – 1640 kg compared to 1655 kg. The difference is around 15 kg.

In terms of boot space, the Alfa Romeo Giulia offers significantly more room – 480 L compared to 163 L. That’s a difference of about 317 L.

When it comes to payload, Alfa Romeo Giulia noticeable takes the win – 535 kg compared to 345 kg. That’s a difference of about 190 kg.

Who comes out on top?

Overall, the Porsche 911 Convertible shows itself to be barely ahead and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.

from about £122,400
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Porsche 911 Convertible

  • Engine Type : Petrol, Full Hybrid
  • Transmission : Automatic, Manuel
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 394 - 711 HP
  • Consumption L/100km : 10.3 - 11.7 L

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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Porsche 911 Convertible

The Porsche 911 Cabrio is a stunning blend of timeless design and exhilarating performance. With its sleek lines and convertible roof, this model seamlessly combines the thrill of open-air driving with the precision and heritage of the Porsche brand. The interior exudes luxury, providing both driver and passenger with an unmatched sense of elegance and comfort.

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Alfa Romeo Giulia
Porsche 911 Convertible
Giulia @ Alfa Romeo / Stellantis Media

Costs and Consumption

Price
48000 - 57000 £
Price
122400 - 244500 £
Consumption L/100km
5.40 L
Consumption L/100km
10.3 - 11.7 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
141 g/km
co2
234 - 265 g/km
Fuel tank capacity
58 L
Fuel tank capacity
63 L

Dimensions and Body

Body Type
Sedan
Body Type
Convertible
Seats
5
Seats
4
Doors
4
Doors
2
Curb weight
1640 kg
Curb weight
1655 - 1900 kg
Trunk capacity
480 L
Trunk capacity
163 L
Length
4650 mm
Length
4542 - 4553 mm
Width
1860 mm
Width
1852 - 1900 mm
Height
1438 mm
Height
1292 - 1302 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
535 kg
Payload
275 - 345 kg

Engine and Performance

Engine Type
Diesel
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Automatic, Manuel
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic, Manual Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
210 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
6.80 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
235 km/h
Max Speed
291 - 322 km/h
Torque
470 Nm
Torque
450 - 800 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
154 kW
Power kW
290 - 523 kW
Engine capacity
2143 cm3
Engine capacity
2981 - 3591 cm3

General

Model Year
2024 - 2025
Model Year
2024 - 2026
CO2 Efficiency Class
E
CO2 Efficiency Class
G
Brand
Alfa Romeo
Brand
Porsche
Is the Alfa Romeo Giulia offered with different drivetrains?

Available configurations include All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.