VS

Audi A5 Sportback vs Mercedes GLA comparison

Compare performance (639 HP vs 421 HP), boot space and price (40,200 £ vs 38,800 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or Mercedes GLA?

Audi A5 Sportback vs Mercedes GLA: Key differences

Audi A5 Sportback

  • markedly more power
  • significantly more efficient
  • markedly more electric range
  • somewhat quicker 0–100 km/h
details

Mercedes GLA

4.5 (4 Reviews)
rate
  • barely cheaper
  • a bit lighter
  • visibly 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

A5 Sportback

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mercedes GLA is barely cheaper – starting at 38,800 £ , while the Audi A5 Sportback costs 40,200 £ . That’s a price difference of around 1,364 £.

Fuel consumption also shows a difference: the Audi A5 Sportback uses 2 L/100km and is significantly more efficient than the Mercedes GLA with 2.9 L/100km. The difference is about 0.9 L/100km.

As for electric range, the Audi A5 Sportback offers markedly more range – reaching up to 110 km, about 36 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 Audi A5 Sportback offers markedly more power – delivering 639 HP compared to 421 HP. That’s roughly 218 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A5 Sportback is somewhat 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 Audi A5 Sportback delivers clearly more torque with 825 Nm compared to 500 Nm. That’s about 325 Nm more.

A5 Sportback

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 a bit lighter – 1,570 kg compared to 1,770 kg. The difference is around 200 kg.

Looking at boot space, the Mercedes GLA offers visibly more boot space – 435 L compared to 331 L. That’s a difference of about 104 L.

When it comes to payload, the Audi A5 Sportback carries barely more – 530 kg compared to 500 kg. That’s a difference of about 30 kg.

Who wins the race in the data check?

The Audi A5 Sportback stands well ahead of its rival 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 £40,200
A5 Sportback

Audi A5 Sportback

  • Engine Type : Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Front-Wheel Drive
  • Power HP : 150 - 639 HP
  • Consumption L/100km : 2 - 7.6 L/100km
  • Electric Range : 84 - 110 km
details

Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class is the practical, airy people‑carrier that prioritises space and comfort, while the Mercedes GLA takes the same mechanical smarts and adds SUV looks, higher ride height and a touch more road presence. Pick the B‑Class for family‑friendly sense and efficiency, choose the GLA if …
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, …
Audi A5 Sportback
Mercedes GLA

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A5 Sportback

The Audi A5 Sportback dresses up sleek coupe proportions with the everyday sense of a practical hatchback, so you get striking looks without the compromises. Behind the wheel it balances poise and comfort with premium trimmings that make daily driving feel a little bit special — ideal for buyers who want style and substance in equal measure.

details
A1911787_overfull
A1911784_overfull
A1911785_overfull
A213103_overfull
A1911786_overfull
A213573_overfull

Reviews Audi A5 Sportback

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

Mercedes GLA

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.

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

BMW X2
Mercedes GLA
VS
In the competitive compact SUV segment, the BMW X2 and Mercedes GLA stand out with their stylish designs and engaging performance. While the X2 offers a sportier driving experience with sharp handling and a distinctive coupe-like silhouette, the GLA impresses with its elegant interior and advanced …
Lexus LBX
Mercedes GLA
VS
In the realm of premium compact SUVs, the Lexus LBX and Mercedes GLA both deliver a blend of luxury and performance that caters to discerning buyers. While the LBX emphasizes a smooth and refined ride with its hybrid powertrain, the GLA offers a sportier edge and more dynamic handling. Ultimately, …
Mercedes GLA
VW T-Roc
VS
In the competitive compact SUV segment, the Mercedes GLA stands out with its luxurious interior and advanced technology, appealing to drivers who prioritize comfort and style. In contrast, the VW T-Roc offers a more playful design and offers a practical, user-friendly experience, making it a strong …
Mercedes EQA
Mercedes GLA
VS
In the battle of compact luxury, the Mercedes EQA and GLA offer distinct advantages that cater to different driving preferences. While the EQA stands out with its electric powertrain and eco-friendly appeal, the GLA retains the versatility and familiar dynamics of a traditional combustion engine. …
Audi A5 Avant
Audi A5 Sportback
VS
Unsure whether the Audi A5 Avant or the Audi A5 Sportback is the better match? Compare both models directly and discover differences in power, efficiency, comfort and value for money — all summarized in one easy view to support your decision.
Mercedes GLA
Nissan Qashqai
VS
The Mercedes GLA and Nissan Qashqai compete for the top spot in your garage. See how both models differ in key areas like performance, running costs, interior space and technology. A fast, clear comparison helps you pick the one that fits your needs best.
Mercedes GLA
VW Tiguan
VS
In the ongoing battle between luxury and practicality, the Mercedes-Benz C-Class and Volkswagen Golf continue to showcase their respective strengths. The C-Class impresses with its opulent interior and advanced technology, catering to those who seek sophistication and performance. Meanwhile, the …
Audi Q2
Mercedes GLA
VS
In the competitive compact SUV segment, the Audi Q2 stands out with its youthful design and engaging driving dynamics, appealing to those who prioritize style and performance. Meanwhile, the Mercedes GLA offers a more luxurious experience with its refined interior and advanced technology features, …
Audi A5 Sportback
Mercedes GLA

Costs and Consumption
Price
40,200 - 91,000 £
Price
38,800 - 75,300 £
Consumption L/100km
2 - 7.6 L/100km
Consumption L/100km
2.9 - 9.5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
84 - 110 km
Electric Range
74 km
Battery Capacity
-
Battery Capacity
-
co2
45 - 172 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
1,770 - 2,430 kg
Curb weight
1,570 - 1,810 kg
Trunk capacity
331 L
Trunk capacity
385 - 435 L
Length
-
Length
-
Width
1,860 - 1,952 mm
Width
1,834 - 1,849 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 530 kg
Payload
480 - 500 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
150 - 639 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
4.3 - 11 s
Max Speed
-
Max Speed
-
Torque
280 - 825 Nm
Torque
230 - 500 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
110 - 470 kW
Power kW
85 - 310 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,025 - 2,026
Model Year
2025
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
E, F, B, G
Brand
Audi
Brand
Mercedes-Benz
What drivetrain options does the Audi A5 Sportback have?

The Audi A5 Sportback is available as All-Wheel Drive or Front-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.