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Audi A5 Sportback vs Mercedes A Class comparison

Compare performance (639 HP vs 421 HP), boot space and price (40,200 £ vs 32,600 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or Mercedes A Class?

Audi A5 Sportback vs Mercedes A Class: Key differences

Audi A5 Sportback

  • noticeably more power
  • moderately more efficient
  • visibly more electric range
  • only slightly quicker 0–100 km/h

Mercedes A Class

  • noticeably cheaper
  • markedly lighter
  • very slightly more trunk space

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

A5 Sportback

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mercedes A Class is noticeably cheaper – starting at 32,600 £ , while the Audi A5 Sportback costs 40,200 £ . That’s a price difference of around 7,632 £.

Fuel consumption also shows a difference: the Audi A5 Sportback uses 2 L/100km and is moderately more efficient than the Mercedes A Class with 2.3 L/100km. The difference is about 0.3 L/100km.

As for electric range, the Audi A5 Sportback offers visibly more range – reaching up to 110 km, about 25 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 Audi A5 Sportback offers noticeably 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 only slightly quicker – completing the sprint in 3.7 s, while the Mercedes A Class takes 3.9 s. That’s about 0.2 s quicker.

Looking at top speed, the Audi A5 Sportback is barely faster – reaching 250 km/h, while the Mercedes A Class tops out at 225 km/h. The difference is around 25 km/h.

There’s also a difference in torque: the Audi A5 Sportback delivers visibly 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 A Class is markedly lighter – 1,440 kg compared to 1,770 kg. The difference is around 330 kg.

Looking at boot space, the Mercedes A Class offers very slightly more boot space – 350 L compared to 331 L. That’s a difference of about 19 L.

For maximum load capacity, the Audi A5 Sportback offers barely more capacity – up to 1,175 L, about 50 L more than the Mercedes A Class.

When it comes to payload, the Audi A5 Sportback carries very slightly more – 530 kg compared to 485 kg. That’s a difference of about 45 kg.

Who wins the race in the data check?

The Audi A5 Sportback 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 £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
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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.

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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.

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Audi A5 Sportback
Mercedes A Class

Costs and Consumption
Price
40,200 - 91,000 £
Price
32,600 - 66,500 £
Consumption L/100km
2 - 7.6 L/100km
Consumption L/100km
2.3 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
84 - 110 km
Electric Range
85 km
Battery Capacity
20.7 kWh
Battery Capacity
12.9 kWh
co2
45 - 172 g/km
co2
53 - 205 g/km
Fuel tank capacity
46 L
Fuel tank capacity
35 L

Dimensions and Body
Body Type
Hatchback
Body Type
Hatchback
Seats
4 - 5
Seats
5
Doors
5
Doors
5
Curb weight
1,770 - 2,430 kg
Curb weight
1,440 - 1,695 kg
Trunk capacity
331 L
Trunk capacity
310 - 350 L
Length
4,829 mm
Length
4,428 mm
Width
1,860 - 1,952 mm
Width
1,796 - 1,850 mm
Height
1,444 mm
Height
1,423 mm
Max trunk capacity
1,175 L
Max trunk capacity
1,125 L
Payload
475 - 530 kg
Payload
450 - 485 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Plugin Hybrid, Petrol MHEV, 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
3.9 - 9.7 s
Max Speed
250 km/h
Max Speed
225 km/h
Torque
280 - 825 Nm
Torque
200 - 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
2,024 - 2,025
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
B, D, E, 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.