VS

Alfa Romeo Junior vs Mercedes GLA comparison

Compare performance (280 HP vs 421 HP), boot space and price (26,100 £ vs 38,800 £ ) at a glance. Find out which car is the better choice for you – Alfa Romeo Junior or Mercedes GLA?

Alfa Romeo Junior vs Mercedes GLA: Key differences

Alfa Romeo Junior

4.9 (7 Reviews)
rate
  • clearly cheaper
  • substantially more electric range
  • somewhat lighter
details

Mercedes GLA

4.5 (4 Reviews)
rate
  • clearly more power
  • significantly more efficient
  • visibly quicker 0–100 km/h
  • only slightly more trunk space
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 key factors when choosing a car – and this is often where the real differences emerge.

Alfa Romeo Junior is clearly cheaper – starting at 26,100 £ , while the Mercedes GLA costs 38,800 £ . That’s a price difference of around 12,736 £.

Fuel consumption also shows a difference: the Mercedes GLA uses 2.9 L/100km and is significantly more efficient than the Alfa Romeo Junior with 4.8 L/100km. The difference is about 1.9 L/100km.

As for electric range, the Alfa Romeo Junior offers substantially more range – reaching up to 410 km, about 336 km more than the Mercedes GLA.

GLA

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 Mercedes GLA offers clearly more power – delivering 421 HP compared to 280 HP. That’s roughly 141 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLA is visibly quicker – completing the sprint in 4.3 s, while the Alfa Romeo Junior takes 5.9 s. That’s about 1.6 s quicker.

There’s also a difference in torque: the Mercedes GLA delivers visibly more torque with 500 Nm compared to 345 Nm. That’s about 155 Nm more.

Junior

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Alfa Romeo Junior is somewhat lighter – 1,380 kg compared to 1,570 kg. The difference is around 190 kg.

Looking at boot space, the Mercedes GLA offers only slightly more boot space – 435 L compared to 415 L. That’s a difference of about 20 L.

When it comes to payload, the Mercedes GLA carries moderately more – 500 kg compared to 420 kg. That’s a difference of about 80 kg.

Who wins the race in the data check?

The Mercedes GLA holds a solid 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 £38,800
GLA

Mercedes GLA

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel, Petrol
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 421 HP
  • Consumption L/100km : 2.9 - 9.5 L/100km
  • Electric Range : 74 km
details

Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class and Mercedes GLA target buyers who want Mercedes practicality with premium touches, but they take different paths: the B‑Class is a spacious, hatchback-style people carrier while the GLA is a compact crossover with a higher ride height and sportier stance. This comparison looks …
Mercedes A Class
Mercedes GLA
VS
The Mercedes A‑Class is the sharper, more driver-focused hatch that feels nimble and refined on twisty roads, while the Mercedes GLA trades a bit of agility for SUV practicality with a higher ride height, extra luggage space and a commanding view of the road. Pick the A‑Class for sporty handling, …
Alfa Romeo Junior
Mercedes GLA

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.

details
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

Mercedes GLA

The Mercedes GLA is a compact luxury crossover that brings Mercedes-Benz's refined design and premium cabin materials into a practical, city-friendly package. It combines comfortable ride quality and intuitive tech with poised handling, making it a confident choice for everyday driving and longer journeys.

details
20C0047_067
20C0047_071
20C0047_104
20C0047_115

Reviews Mercedes GLA

4.5 (4 Reviews)
rate
Lucien
1 May 2026, 07:12:24

GLA 180 petrol. Ideal for city and highway. Very smooth and quiet. The automatic gearbox is a delight. Average consumption 6.2 L/100 km. Special edition 180 Cyber Edition, leather seats....

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
Gutter
24 Feb 2026, 21:53:27

Super nimble, very impressive power from this 1,300cc mild‑hybrid engine — in town, on the road and on the motorway for this 2025 GLA 180 Style AMG... premium interior!

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
Serge
16 Jan 2026, 16:09:11

You have to compare like with like — the GLA should be compared to the Q3, not the Q2 as in your study!

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

Frequently compared as well

Alfa Romeo Junior
Jeep Avenger
VS
Comparing the Alfa Romeo Junior and the Jeep Avenger pits a classic, driver-focused Italian coupe against a contemporary, city-sized crossover built for everyday practicality. If you value vintage charisma and engaging steering, the Junior is instantly appealing; if you prefer modern safety, …
Alfa Romeo Junior
Alfa Romeo Tonale
VS
In the battle of modern Italian engineering, the Alfa Romeo Junior takes on the Alfa Romeo Tonale, showcasing distinct personalities within Alfa's lineup. The Junior dazzles with its classic style and sporty dynamics, appealing to purists and enthusiasts alike, while the Tonale offers a more …
Mercedes CLA Shooting Brake
Mercedes GLA
VS
In the battle between the Mercedes CLA Shooting Brake and the Mercedes GLA, both models showcase the brand's signature blend of luxury and performance. The CLA Shooting Brake offers a sleek, coupe-like silhouette with added practicality, while the GLA boasts a more robust stance and superior …
Alfa Romeo Junior
Fiat 600
VS
Comparing the Alfa Romeo Junior and the Fiat 600 pits two classic Italian small cars with very different personalities: the Alfa Romeo Junior brings sportier handling and style, while the Fiat 600 emphasizes simplicity and urban practicality. If you want a driver's car with flair and historic …
Alfa Romeo Junior
Lexus LBX
VS
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 …
Lexus LBX
Mercedes GLA
VS
The Lexus LBX and Mercedes GLA are compact premium crossovers that target urban buyers who want a blend of style, comfort and compact practicality. The LBX emphasizes Lexus refinement and a plush ride, while the GLA leans toward sharper handling, a sportier drive and a more tech-focused cabin.
Alfa Romeo Junior
Mazda CX-30
VS
In a head-to-head comparison between the stylish Alfa Romeo Junior and the versatile Mazda CX-30, automotive enthusiasts find themselves at a crossroads between Italian flair and Japanese reliability. The Alfa Romeo Junior captures the imagination with its iconic design and spirited handling, …
Alfa Romeo Junior
Toyota Yaris Cross
VS
In the automotive showdown between the Alfa Romeo Junior and the Toyota Yaris Cross, enthusiasts will find a fascinating blend of Italian flair and Japanese practicality. While the Junior captivates with its bold design and sporty performance, the Yaris Cross shines with its versatility and fuel …
Alfa Romeo Junior
Mercedes GLA

Costs and Consumption
Price
26,100 - 41,600 £
Price
38,800 - 75,300 £
Consumption L/100km
4.8 - 5.4 L/100km
Consumption L/100km
2.9 - 9.5 L/100km
Consumption kWh/100km
15.1 - 17.5 kWh/100km
Consumption kWh/100km
-
Electric Range
344 - 410 km
Electric Range
74 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 119 g/km
co2
66 - 216 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,380 - 1,689 kg
Curb weight
1,570 - 1,810 kg
Trunk capacity
340 - 415 L
Trunk capacity
385 - 435 L
Length
-
Length
-
Width
1,781 mm
Width
1,834 - 1,849 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
390 - 420 kg
Payload
480 - 500 kg

Engine and Performance
Engine Type
Electric, Petrol MHEV
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
136 - 280 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
5.9 - 9.1 s
Acceleration 0-100km/h
4.3 - 11 s
Max Speed
-
Max Speed
-
Torque
230 - 345 Nm
Torque
230 - 500 Nm
Number of Cylinders
3
Number of Cylinders
4
Power kW
107 - 207 kW
Power kW
85 - 310 kW
Engine capacity
1,199 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,024 - 2,025
Model Year
2025
CO2 Efficiency Class
A, C, D
CO2 Efficiency Class
E, F, B, G
Brand
Alfa Romeo
Brand
Mercedes-Benz
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.