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Alfa Romeo Giulia vs BYD Seal U comparison

Compare performance (520 HP vs 324 HP), boot space and price (48,000 £ vs 34,300 £ ) at a glance. Find out which car is the better choice for you – Alfa Romeo Giulia or BYD Seal U?

Alfa Romeo Giulia vs BYD Seal U: Key differences

Alfa Romeo Giulia

4.1 (2 Reviews)
rate
  • visibly more power
  • clearly quicker 0–100 km/h
  • slightly lighter
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BYD Seal U

4.1 (7 Reviews)
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  • significantly cheaper
  • somewhat more trunk space
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All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

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

Giulia

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

BYD Seal U is significantly cheaper – starting at 34,300 £ , while the Alfa Romeo Giulia costs 48,000 £ . That’s a price difference of around 13,723 £.

Seal U

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 Alfa Romeo Giulia offers visibly more power – delivering 520 HP compared to 324 HP. That’s roughly 196 HP more horsepower.

When accelerating from 0 to 100 km/h, the Alfa Romeo Giulia is clearly quicker – completing the sprint in 3.9 s, while the BYD Seal U takes 5.9 s. That’s about 2 s quicker.

There’s also a difference in torque: the Alfa Romeo Giulia delivers barely more torque with 600 Nm compared to 550 Nm. That’s about 50 Nm more.

Giulia

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.

Both vehicles offer seating for 5 people.

In terms of curb weight, Alfa Romeo Giulia is slightly lighter – 1,640 kg compared to 1,940 kg. The difference is around 300 kg.

Looking at boot space, the BYD Seal U offers somewhat more boot space – 552 L compared to 480 L. That’s a difference of about 72 L.

When it comes to payload, the Alfa Romeo Giulia carries noticeably more – 535 kg compared to 410 kg. That’s a difference of about 125 kg.

Who wins the race in the data check?

The Alfa Romeo Giulia 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 £48,000
Giulia

Alfa Romeo Giulia

  • Engine Type : Diesel, Petrol
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 210 - 520 HP
  • Consumption L/100km : 5.4 - 10.1 L/100km
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Frequently compared as well

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Alfa Romeo Giulia
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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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fca_germany_alfa_romeo_giulia_quadrifoglio_my2020_063-5ed6059fd7bec

Reviews Alfa Romeo Giulia

4.1 (2 Reviews)
rate

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

BYD Seal U

The BYD Seal U is a sleek electric fastback that blends sporty styling with a roomy, tech-focused interior, making it an appealing choice for buyers who want electric performance without sacrificing comfort. It delivers a smooth, composed ride and intuitive features, positioning it as a practical yet modern option in the EV market.

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BYD SEAL U 157
BYD SEAL U 061
BYD SEAL U 079

Reviews BYD Seal U

4.1 (7 Reviews)
rate
Emily
20 Jan 2026, 22:52:34

Broke down at 200 KM

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Alfa Romeo Giulia
BYD Seal U

Costs and Consumption
Price
48,000 - 88,300 £
Price
34,300 - 39,800 £
Consumption L/100km
5.4 - 10.1 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
12.1 - 20.5 kWh/100km
Electric Range
-
Electric Range
70 - 500 km
Battery Capacity
-
Battery Capacity
-
co2
141 - 229 g/km
co2
0 - 71 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
4 - 5
Seats
5
Doors
-
Doors
-
Curb weight
1,640 - 1,735 kg
Curb weight
1,940 - 2,147 kg
Trunk capacity
480 L
Trunk capacity
425 - 552 L
Length
-
Length
-
Width
1,860 - 1,874 mm
Width
1,890 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
415 - 535 kg
Payload
410 kg

Engine and Performance
Engine Type
Diesel, Petrol
Engine Type
Electric, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox, Automatic Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
210 - 520 HP
Power HP
218 - 324 HP
Acceleration 0-100km/h
3.9 - 6.8 s
Acceleration 0-100km/h
5.9 - 9.6 s
Max Speed
-
Max Speed
-
Torque
470 - 600 Nm
Torque
300 - 550 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
154 - 382 kW
Power kW
160 - 238 kW
Engine capacity
2,143 - 2,891 cm3
Engine capacity
1,497 - 1,498 cm3

General
Model Year
2,025 - 2,026
Model Year
2,024 - 2,026
CO2 Efficiency Class
E, G
CO2 Efficiency Class
A, B
Brand
Alfa Romeo
Brand
BYD
Is the Alfa Romeo Giulia offered with different drivetrains?

The Alfa Romeo Giulia is offered with All-Wheel Drive or Rear-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.