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BMW i4 vs Mercedes GLA comparison

Compare performance (601 HP vs 421 HP), boot space and price (49,900 £ vs 38,800 £ ) at a glance. Find out which car is the better choice for you – BMW i4 or Mercedes GLA?

BMW i4 vs Mercedes GLA: Key differences

BMW i4

5 (3 Reviews)
rate
  • noticeably more power
  • clearly more electric range
  • slightly quicker 0–100 km/h
  • barely more trunk space
details

Mercedes GLA

4.5 (4 Reviews)
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  • clearly cheaper
  • visibly lighter
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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

i4

Costs and Efficiency:

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

Mercedes GLA is clearly cheaper – starting at 38,800 £ , while the BMW i4 costs 49,900 £ . That’s a price difference of around 11,049 £.

As for electric range, the BMW i4 offers clearly more range – reaching up to 613 km, about 539 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 BMW i4 offers noticeably more power – delivering 601 HP compared to 421 HP. That’s roughly 180 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW i4 is slightly quicker – completing the sprint in 3.7 s, while the Mercedes GLA takes 4.3 s. That’s about 0.6 s quicker.

There’s also a difference in torque: the BMW i4 delivers markedly more torque with 795 Nm compared to 500 Nm. That’s about 295 Nm more.

i4

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, Mercedes GLA is visibly lighter – 1,570 kg compared to 2,070 kg. The difference is around 500 kg.

Looking at boot space, the BMW i4 offers barely more boot space – 470 L compared to 435 L. That’s a difference of about 35 L.

When it comes to payload, the Mercedes GLA carries marginally more – 500 kg compared to 480 kg. That’s a difference of about 20 kg.

Who wins the race in the data check?

The BMW i4 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 £49,900
i4

BMW i4

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 286 - 601 HP
  • Consumption kWh/100km 14.7 - 16.7 kWh/100km
  • Electric Range 514 - 613 km
details

Frequently compared as well

Mercedes GLA
VW T-Roc
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The Mercedes GLA and the VW T‑Roc are compact crossover SUVs that aim to deliver city-friendly size with SUV practicality, but they take different approaches to luxury, technology and driving character. Choose the GLA if you prioritise a plush interior and refined on-road manners; pick the T‑Roc …
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BMW i4
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW i4

The BMW i4 arrives with the poise of a classic Gran Coupé, marrying BMW's playful handling with a sleek, modern interior that makes switching to electric feel like an upgrade rather than a compromise. For buyers who want a practical daily driver that still enjoys a spirited back-road run, the i4 quietly delivers smiles and a surprising dose of driver engagement.

details
P90439358_highRes_bmw-i4-m50-9-2021
P90439356_highRes_bmw-i4-m50-9-2021
P90439360_highRes_bmw-i4-m50-9-2021
P90439369_highRes_bmw-i4-m50-9-2021
P90422904_highRes_bmw-i4-interieur-6-2

Reviews BMW i4

5 (3 Reviews)
rate
Marco
23 Apr 2026, 14:56:19

Amazing car with enormous torque, equipment and driving experience, at an acceptable fuel consumption.

How do you mainly use this car? (optional): Company car / Business
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)
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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

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The BMW i4 feels like a familiar, impeccably tuned sports saloon — razor-sharp steering, plush interior and that badge-backed refinement for drivers who crave engagement over bargains. The BYD Seal, meanwhile, is the plucky tech-packed challenger: startling range and kit for the money, bold design …
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BMW i4
Mercedes GLA

Costs and Consumption
Price
49,900 - 63,200 £
Price
38,800 - 75,300 £
Consumption L/100km
-
Consumption L/100km
2.9 - 9.5 L/100km
Consumption kWh/100km
14.7 - 16.7 kWh/100km
Consumption kWh/100km
-
Electric Range
514 - 613 km
Electric Range
74 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
66 - 216 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,070 - 2,285 kg
Curb weight
1,570 - 1,810 kg
Trunk capacity
470 L
Trunk capacity
385 - 435 L
Length
-
Length
-
Width
1,852 mm
Width
1,834 - 1,849 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
445 - 480 kg
Payload
480 - 500 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
286 - 601 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
3.7 - 6 s
Acceleration 0-100km/h
4.3 - 11 s
Max Speed
-
Max Speed
-
Torque
400 - 795 Nm
Torque
230 - 500 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
210 - 442 kW
Power kW
85 - 310 kW
Engine capacity
-
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,024 - 2,025
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
E, F, B, G
Brand
BMW
Brand
Mercedes-Benz
Is the BMW i4 offered with different drivetrains?

The BMW i4 is offered with Rear-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.