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Audi A3 Sportback vs Mercedes A Class comparison
Compare performance (400 HP vs 421 HP), boot space and price (27000 £ vs 32600 £ ) at a glance. Find out which car is the better choice for you – Audi A3 Sportback or Mercedes A Class?
A3 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.
Audi A3 Sportback has a clearly perceptible advantage in terms of price – it starts at 27000 £ , while the Mercedes A Class costs 32600 £ . That’s a price difference of around 5568 £.
Fuel consumption also shows a difference: Audi A3 Sportback manages with 1.10 L and is therefore decisively more efficient than the Mercedes A Class with 2.30 L. The difference is about 1.20 L per 100 km.
As for electric range, the Audi A3 Sportback performs distinct better – achieving up to 141 km, about 56 km more than the Mercedes A Class.
A Class
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 A Class has a minimal edge – offering 421 HP compared to 400 HP. That’s roughly 21 HP more horsepower.
In acceleration from 0 to 100 km/h, the Audi A3 Sportback is hardly perceptible quicker – completing the sprint in 3.80 s, while the Mercedes A Class takes 3.90 s. That’s about 0.10 s faster.
In terms of top speed, the Audi A3 Sportback performs minimal better – reaching 237 km/h, while the Mercedes A Class tops out at 225 km/h. The difference is around 12 km/h.
Both models offer the same torque – 500 Nm.
A3 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 curb weight, Audi A3 Sportback is slight lighter – 1360 kg compared to 1440 kg. The difference is around 80 kg.
In terms of boot space, the Audi A3 Sportback offers slight more room – 380 L compared to 350 L. That’s a difference of about 30 L.
In maximum load capacity, the Mercedes A Class performs barely noticeable better – up to 1125 L, which is about 25 L more than the Audi A3 Sportback.
When it comes to payload, Mercedes A Class barely noticeable takes the win – 485 kg compared to 480 kg. That’s a difference of about 5 kg.
Who wins the race in the data check?
The Audi A3 Sportback is decisively ahead 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.
Audi A3 Sportback
Mercedes A Class
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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from about £27,000
Audi A3 Sportback
Audi A3 Sportback
3.9 (1 Reviews)
The Audi A3 Sportback wraps premium materials and crisp German design into a practical hatchback package that makes daily driving feel smart rather than showy. It’s nimble in the city, composed on longer trips, and carries just enough swagger to satisfy buyers who want quality without shouting about it.
details
Mercedes A Class
The Mercedes A‑Class arrives as a compact charmer that dresses premium materials and a cockpit full of screens in a tidy, city-friendly package, delivering surprising agility and poise. For buyers who want a luxury badge, clever tech and a car that's equally happy in tight streets or on a spirited country run, the A‑Class offers a grown-up feel with a cheeky streak.
details
Audi A3 Sportback
Mercedes A Class
Costs and Consumption |
|
|---|---|
|
Price
27000 - 56600 £
|
Price
32600 - 66500 £
|
|
Consumption L/100km
1.1 - 9.3 L
|
Consumption L/100km
2.3 - 9 L
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
-
|
|
Electric Range
134 - 141 km
|
Electric Range
85 km
|
|
Battery Capacity
19.70 kWh
|
Battery Capacity
12.90 kWh
|
|
co2
25 - 211 g/km
|
co2
53 - 205 g/km
|
|
Fuel tank capacity
40 L
|
Fuel tank capacity
35 L
|
Dimensions and Body |
|
|---|---|
|
Body Type
Hatchback
|
Body Type
Hatchback
|
|
Seats
5
|
Seats
5
|
|
Doors
5
|
Doors
5
|
|
Curb weight
1360 - 1685 kg
|
Curb weight
1440 - 1695 kg
|
|
Trunk capacity
280 - 380 L
|
Trunk capacity
310 - 350 L
|
|
Length
4352 - 4353 mm
|
Length
4428 mm
|
|
Width
1816 - 1851 mm
|
Width
1796 - 1850 mm
|
|
Height
1441 - 1470 mm
|
Height
1423 mm
|
|
Max trunk capacity
1100 L
|
Max trunk capacity
1125 L
|
|
Payload
410 - 480 kg
|
Payload
450 - 485 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Petrol, Petrol MHEV, Diesel, Plugin Hybrid
|
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol
|
|
Transmission
Manuel, Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
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Transmission Detail
Dual-Clutch Automatic
|
|
Drive Type
Front-Wheel Drive, All-Wheel Drive
|
Drive Type
Front-Wheel Drive, All-Wheel Drive
|
|
Power HP
116 - 400 HP
|
Power HP
116 - 421 HP
|
|
Acceleration 0-100km/h
3.8 - 10.1 s
|
Acceleration 0-100km/h
3.9 - 9.7 s
|
|
Max Speed
225 - 237 km/h
|
Max Speed
225 km/h
|
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Torque
220 - 500 Nm
|
Torque
200 - 500 Nm
|
|
Number of Cylinders
4 - 5
|
Number of Cylinders
4
|
|
Power kW
85 - 294 kW
|
Power kW
85 - 310 kW
|
|
Engine capacity
1498 - 2480 cm3
|
Engine capacity
1332 - 1991 cm3
|
General |
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|---|---|
|
Model Year
2025
|
Model Year
2024 - 2025
|
|
CO2 Efficiency Class
D, F, E, G, B
|
CO2 Efficiency Class
B, D, E, G
|
|
Brand
Audi
|
Brand
Mercedes-Benz
|
What drive types are available for the Audi A3 Sportback?
The Audi A3 Sportback is offered with 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.