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Mercedes GLA vs SEAT Arona - Differences and prices compared

Compare performance (421 HP vs 150 HP), boot space and price (38800 £ vs 20700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLA or SEAT Arona?

Mercedes GLA

5 (1 Reviews)
rate

SEAT Arona

4.9 (1 Reviews)
rate

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

GLA

Costs and Efficiency:

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

SEAT Arona has a convincingly advantage in terms of price – it starts at 20700 £ , while the Mercedes GLA costs 38800 £ . That’s a price difference of around 18136 £.

Fuel consumption also shows a difference: Mercedes GLA manages with 2.90 L and is therefore convincingly more efficient than the SEAT Arona with 5.30 L. The difference is about 2.40 L per 100 km.

Arona

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 Mercedes GLA has a clearly edge – offering 421 HP compared to 150 HP. That’s roughly 271 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes GLA is decisively quicker – completing the sprint in 4.30 s, while the SEAT Arona takes 8.30 s. That’s about 4 s faster.

There’s also a difference in torque: Mercedes GLA pulls clearly stronger with 500 Nm compared to 250 Nm. That’s about 250 Nm difference.

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GLA

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In curb weight, SEAT Arona is distinct lighter – 1188 kg compared to 1570 kg. The difference is around 382 kg.

In terms of boot space, the Mercedes GLA offers minimal more room – 435 L compared to 400 L. That’s a difference of about 35 L.

When it comes to payload, SEAT Arona barely noticeable takes the win – 522 kg compared to 500 kg. That’s a difference of about 22 kg.

Who wins the race?

The Mercedes GLA proves to be wins the duel decisively and therefore becomes our DriveDuel Champion!
Mercedes GLA is the better all-rounder in this comparison.

from about £38,800
GLA

Mercedes GLA

  • Engine Type : Plugin Hybrid, Petrol MHEV, 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
  • Electric Range : 74 km
details
Mercedes GLA
SEAT Arona

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLA

5 (1 Reviews)
rate

The Mercedes GLA blends Mercedes style with compact crossover practicality, looking sharper than its size suggests while still feeling purposeful around town. Inside it serves up premium materials and tech-forward ergonomics, and the composed ride makes it an appealing pick for buyers who want luxury wrapped in a city-friendly package with a wink of adventurous spirit.

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SEAT Arona

4.9 (1 Reviews)
rate

The SEAT Arona is a cheeky urban crossover that mixes sharp styling with sensible practicality, making it an appealing choice for buyers who want personality without fuss. It’s zippy in traffic, comfortable enough for daily driving, and brings enough character to make routine journeys feel a little more fun.

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Reviews Mercedes GLA

5 (1 Reviews)
rate

Reviews SEAT Arona

4.9 (1 Reviews)
rate

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Mercedes B Class
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Mercedes GLA
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Costs and Consumption
Price
38800 - 75300 £
Price
20700 - 30500 £
Consumption L/100km
2.9 - 9.5 L
Consumption L/100km
5.3 - 5.8 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
74 km
Electric Range
-
Battery Capacity
12.90 kWh
Battery Capacity
-
co2
66 - 216 g/km
co2
120 - 132 g/km
Fuel tank capacity
35 - 51 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
1570 - 1810 kg
Curb weight
1188 - 1268 kg
Trunk capacity
385 - 435 L
Trunk capacity
400 L
Length
4412 - 4443 mm
Length
-
Width
1834 - 1849 mm
Width
1780 mm
Height
1590 - 1616 mm
Height
-
Max trunk capacity
1385 - 1430 L
Max trunk capacity
-
Payload
480 - 500 kg
Payload
502 - 522 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol
Engine Type
Petrol
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
116 - 421 HP
Power HP
95 - 150 HP
Acceleration 0-100km/h
4.3 - 11 s
Acceleration 0-100km/h
8.3 - 11.1 s
Max Speed
190 - 270 km/h
Max Speed
-
Torque
230 - 500 Nm
Torque
175 - 250 Nm
Number of Cylinders
4
Number of Cylinders
3 - 4
Power kW
85 - 310 kW
Power kW
70 - 110 kW
Engine capacity
1332 - 1991 cm3
Engine capacity
999 - 1498 cm3

General
Model Year
2024 - 2025
Model Year
2025
CO2 Efficiency Class
B, E, F, G
CO2 Efficiency Class
D
Brand
Mercedes-Benz
Brand
SEAT

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What drivetrain options does the Mercedes GLA have?

Available configurations include Front-Wheel Drive or All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.