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Audi A5 Sportback vs Mercedes G-Class comparison

Compare performance (639 HP vs 605 HP), boot space and price (40,200 £ vs 106,600 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or Mercedes G-Class?

Audi A5 Sportback vs Mercedes G-Class: Key differences

Audi A5 Sportback

  • considerably cheaper
  • only slightly more power
  • considerably more efficient
  • slightly quicker 0–100 km/h
  • clearly lighter
details

Mercedes G-Class

  • clearly more electric range
  • visibly more trunk space
details

By Achim Sedelmaier

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.

Audi A5 Sportback is considerably cheaper – starting at 40,200 £ , while the Mercedes G-Class costs 106,600 £ . That’s a price difference of around 66,390 £.

Fuel consumption also shows a difference: the Audi A5 Sportback uses 2 L/100km and is considerably more efficient than the Mercedes G-Class with 8.7 L/100km. The difference is about 6.7 L/100km.

As for electric range, the Mercedes G-Class offers clearly more range – reaching up to 479 km, about 369 km more than the Audi A5 Sportback.

G-Class

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Audi A5 Sportback offers only slightly more power – delivering 639 HP compared to 605 HP. That’s roughly 34 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A5 Sportback is slightly quicker – completing the sprint in 3.7 s, while the Mercedes G-Class takes 4.4 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the Mercedes G-Class delivers noticeably more torque with 1,164 Nm compared to 825 Nm. That’s about 339 Nm more.

A5 Sportback

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Audi A5 Sportback is clearly lighter – 1,770 kg compared to 2,485 kg. The difference is around 715 kg.

Looking at boot space, the Mercedes G-Class offers visibly more boot space – 640 L compared to 445 L. That’s a difference of about 195 L.

When it comes to payload, the Mercedes G-Class carries noticeably more – 715 kg compared to 530 kg. That’s a difference of about 185 kg.

Who wins the race in the data check?

The Audi A5 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.

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 G-Class

The G-Class, often called the G‑Wagen, is a blocky icon that blends unapologetic off-road prowess with a plush, modern cabin, announcing your arrival before you even step out. It’s equally at home crawling over rocks or cruising city streets, and owning one feels like adopting a very expensive, very capable personality.

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Costs and Consumption
Price
40,200 - 91,000 £
Price
106,600 - 171,000 £
Consumption L/100km
2 - 7.6 L/100km
Consumption L/100km
8.7 - 14.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
28 kWh/100km
Electric Range
84 - 110 km
Electric Range
479 km
Battery Capacity
-
Battery Capacity
-
co2
45 - 172 g/km
co2
0 - 336 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Off-Roader
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,770 - 2,430 kg
Curb weight
2,485 - 3,085 kg
Trunk capacity
331 - 445 L
Trunk capacity
640 L
Length
-
Length
-
Width
1,860 - 1,952 mm
Width
1,931 - 1,984 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 530 kg
Payload
115 - 715 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Petrol MHEV, Diesel MHEV, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
150 - 639 HP
Power HP
387 - 605 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
4.4 - 5.8 s
Max Speed
-
Max Speed
-
Torque
280 - 825 Nm
Torque
760 - 1,164 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6 - 8
Power kW
110 - 470 kW
Power kW
285 - 445 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
2,989 - 3,982 cm3

General
Model Year
2,025 - 2,026
Model Year
2,025 - 2,026
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
G, A
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.