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Alfa Romeo Junior vs BYD Dolphin comparison

Compare performance (280 HP vs 204 HP), boot space and price (26,100 £ vs 29,700 £ ) at a glance. Find out which car is the better choice for you – Alfa Romeo Junior or BYD Dolphin?

Alfa Romeo Junior vs BYD Dolphin: Key differences

Alfa Romeo Junior

4.9 (7 Reviews)
rate
  • moderately cheaper
  • noticeably more power
  • only slightly more efficient
  • slightly quicker 0–100 km/h
  • visibly lighter
  • moderately more trunk space
details

BYD Dolphin

4 (4 Reviews)
rate
  • only slightly more electric range
details

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

Junior

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.

Alfa Romeo Junior is moderately cheaper – starting at 26,100 £ , while the BYD Dolphin costs 29,700 £ . That’s a price difference of around 3,591 £.

In terms of energy consumption, the Alfa Romeo Junior is only slightly more efficient: consuming 15.1 kWh/100km compared to 15.9 kWh/100km for the BYD Dolphin. That’s a difference of about 0.8 kWh/100km.

As for electric range, the BYD Dolphin offers only slightly more range – reaching up to 427 km, about 17 km more than the Alfa Romeo Junior.

Dolphin

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Alfa Romeo Junior offers noticeably more power – delivering 280 HP compared to 204 HP. That’s roughly 76 HP more horsepower.

When accelerating from 0 to 100 km/h, the Alfa Romeo Junior is slightly quicker – completing the sprint in 5.9 s, while the BYD Dolphin takes 7 s. That’s about 1.1 s quicker.

There’s also a difference in torque: the Alfa Romeo Junior delivers a bit more torque with 345 Nm compared to 310 Nm. That’s about 35 Nm more.

Junior

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 Junior is visibly lighter – 1,380 kg compared to 1,658 kg. The difference is around 278 kg.

Looking at boot space, the Alfa Romeo Junior offers moderately more boot space – 415 L compared to 345 L. That’s a difference of about 70 L.

When it comes to payload, the Alfa Romeo Junior carries only slightly more – 420 kg compared to 410 kg. That’s a difference of about 10 kg.

Who wins the race in the data check?

The Alfa Romeo Junior is far ahead overall 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 £26,100
Junior

Alfa Romeo Junior

  • Engine Type : Electric, Petrol MHEV
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 136 - 280 HP
  • Consumption L/100km : 4.8 - 5.4 L/100km
  • Consumption kWh/100km : 15.1 - 17.5 kWh/100km
  • Electric Range : 344 - 410 km
details

Frequently compared as well

BYD Dolphin
BYD Atto 2
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The BYD Dolphin and BYD Atto 2 represent two distinct EV choices from BYD: the Dolphin is a compact, city-oriented hatchback focused on efficiency and nimble urban driving, while the Atto 2 is a compact crossover offering more space, a higher driving position and richer tech. Choose the Dolphin for …
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BYD Dolphin Surf
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The BYD Dolphin and the sportier Dolphin Surf share the same efficient electric bones, but the Surf adds visual muscle, slightly firmer suspension and sharper steering for anyone craving a bit more attitude. Inside they’re twins — clever packaging, roomy rear seats and a useful boot — so the Surf’s …
Alfa Romeo Junior
BYD Dolphin

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Alfa Romeo Junior

The Alfa Romeo Junior captures the essence of Italian design with its sleek lines and compact dimensions, making it an icon of elegance and performance. With a spirited driving experience and a charming retro aesthetic, it appeals to enthusiasts and casual drivers alike. This delightful car embodies the brand's rich heritage while remaining a fun and engaging option for those seeking a unique automotive experience.

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AlfaRomeoJunior-Exterieur
AlfaRomeoJunior-Exterieur
AlfaRomeoJunior-Interieur

Reviews Alfa Romeo Junior

4.9 (7 Reviews)
rate
Jerzy
9 May 2026, 04:07:35

The car is a pleasure to drive — you don't want to get out. The navigation guides excellently, but Polish names are mispronounced. The car doesn't have cornering lights. The matrix headlights are very good.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

BYD Dolphin

The BYD Dolphin is a cheeky electric hatchback that blends playful styling with surprising practicality, making it a brilliant city companion for buyers who want modern tech without the showroom bravado. It’s comfy, efficient and easy to live with, and while it won’t blind you with supercar drama, it will quietly get the job done with plenty of character.

details
E3343F48-6402-43F6-BA2F-1FB1F8EFCE7F
000AECC3-AF0F-42E4-A606-040E7FB88B81
0344F0B7-DD22-4EE0-9220-311A496628F6

Reviews BYD Dolphin

4 (4 Reviews)
rate
Mark Kennedy
12 Apr 2026, 17:25:08

Absolute gem of a car, wonderfully smooth and powerful, along with being loaded with tech. By far the best car I've had. Would highly recommend

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
John Maskell
3 Jan 2026, 07:26:24

Loving the dolphin

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

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The Alfa Romeo Junior charms with vintage Italian flair, razor-sharp steering and pure analogue drama — it’s for drivers who buy emotion first and practicality maybe later. The Lexus LBX, by contrast, is composed, tech-rich and absurdly sensible: a compact, efficient urban crossover for buyers who …
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Alfa Romeo Junior
BYD Dolphin

Costs and Consumption
Price
26,100 - 41,600 £
Price
29,700 - 31,400 £
Consumption L/100km
4.8 - 5.4 L/100km
Consumption L/100km
-
Consumption kWh/100km
15.1 - 17.5 kWh/100km
Consumption kWh/100km
15.9 kWh/100km
Electric Range
344 - 410 km
Electric Range
427 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 119 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,380 - 1,689 kg
Curb weight
1,658 kg
Trunk capacity
340 - 415 L
Trunk capacity
345 L
Length
-
Length
-
Width
1,781 mm
Width
1,770 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
390 - 420 kg
Payload
410 kg

Engine and Performance
Engine Type
Electric, Petrol MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
136 - 280 HP
Power HP
204 HP
Acceleration 0-100km/h
5.9 - 9.1 s
Acceleration 0-100km/h
7 s
Max Speed
-
Max Speed
-
Torque
230 - 345 Nm
Torque
310 Nm
Number of Cylinders
3
Number of Cylinders
-
Power kW
107 - 207 kW
Power kW
150 kW
Engine capacity
1,199 cm3
Engine capacity
-

General
Model Year
2,024 - 2,025
Model Year
2023
CO2 Efficiency Class
A, C, D
CO2 Efficiency Class
A
Brand
Alfa Romeo
Brand
BYD
What drivetrain options does the Alfa Romeo Junior have?

The Alfa Romeo Junior is offered with Front-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.