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Audi A5 Avant vs Mercedes S Class - Differences and prices compared

Compare performance (367 HP vs 802 HP), boot space and price (40200 £ vs 97200 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Avant or Mercedes S Class?

Audi A5 Avant

Mercedes S Class

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

A5 Avant

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Audi A5 Avant has a decisively advantage in terms of price – it starts at 40200 £ , while the Mercedes S Class costs 97200 £ . That’s a price difference of around 57013 £.

Fuel consumption also shows a difference: Audi A5 Avant manages with 2.10 L and is therefore barely noticeable more efficient than the Mercedes S Class with 2.30 L. The difference is about 0.20 L per 100 km.

As for electric range, the Mercedes S Class performs minimal better – achieving up to 117 km, about 9 km more than the Audi A5 Avant.

S Class

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes S Class has a decisively edge – offering 802 HP compared to 367 HP. That’s roughly 435 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes S Class is evident quicker – completing the sprint in 3.30 s, while the Audi A5 Avant takes 4.50 s. That’s about 1.20 s faster.

There’s no difference in top speed – both reach 250 km/h.

There’s also a difference in torque: Mercedes S Class pulls clearly stronger with 1430 Nm compared to 550 Nm. That’s about 880 Nm difference.

A5 Avant

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: Mercedes S Class offers somewhat more seating capacity – 5 vs 4.

In curb weight, Audi A5 Avant is a bit lighter – 1785 kg compared to 2070 kg. The difference is around 285 kg.

In terms of boot space, the Mercedes S Class offers slightly more room – 550 L compared to 476 L. That’s a difference of about 74 L.

When it comes to payload, Mercedes S Class distinct takes the win – 730 kg compared to 535 kg. That’s a difference of about 195 kg.

Who wins the race in the data check?

The Mercedes S Class sits 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.

Audi A5 Avant
Mercedes S Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £97,200
S Class

Mercedes S Class

  • Engine Type : Petrol MHEV, Petrol, Plugin Hybrid, Diesel MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 336 - 802 HP
  • Consumption L/100km : 2.3 - 13.2 L
  • Electric Range : 31 - 117 km
details

Audi A5 Avant

The Audi A5 Avant dresses like a sleek coupe but carries like a sensible estate, offering buyers a rare blend of glamour and everyday practicality. Inside, the cabin feels beautifully sorted and the drive is composed and engaging, making routine errands feel a touch more enjoyable than they have any right to be.

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Mercedes S Class

The Mercedes S-Class wraps peerless comfort, whisper-quiet luxury and subtle tech wizardry into a chauffeur-ready package that still knows how to engage the driver. It’s the car for buyers who want to arrive relaxed, be taken seriously and occasionally enjoy a grin when the road reminds them this limousine can dance.

details
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Reviews Audi A5 Avant

Reviews Mercedes S Class

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Costs and Consumption
Price
40200 - 70000 £
Price
97200 - 204400 £
Consumption L/100km
2.1 - 7.7 L
Consumption L/100km
2.3 - 13.2 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
104 - 108 km
Electric Range
31 - 117 km
Battery Capacity
20.70 kWh
Battery Capacity
10.40 kWh
co2
47 - 175 g/km
co2
52 - 301 g/km
Fuel tank capacity
46 - 60 L
Fuel tank capacity
65 - 76 L

Dimensions and Body
Body Type
Estate
Body Type
Sedan
Seats
4
Seats
5
Doors
5
Doors
4
Curb weight
1785 - 2185 kg
Curb weight
2070 - 2650 kg
Trunk capacity
361 - 476 L
Trunk capacity
325 - 550 L
Length
4829 - 4835 mm
Length
5179 - 5469 mm
Width
1860 mm
Width
1921 - 1954 mm
Height
1444 - 1460 mm
Height
1503 - 1515 mm
Max trunk capacity
1306 - 1424 L
Max trunk capacity
-
Payload
480 - 535 kg
Payload
420 - 730 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
150 - 367 HP
Power HP
336 - 802 HP
Acceleration 0-100km/h
4.5 - 9.8 s
Acceleration 0-100km/h
3.3 - 5.9 s
Max Speed
214 - 250 km/h
Max Speed
250 km/h
Torque
280 - 550 Nm
Torque
500 - 1430 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6 - 12
Power kW
110 - 270 kW
Power kW
247 - 590 kW
Engine capacity
1968 - 2995 cm3
Engine capacity
2989 - 5980 cm3

General
Model Year
2025
Model Year
2024 - 2025
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
G, E, F, B
Brand
Audi
Brand
Mercedes-Benz

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What drive types are available for the Audi A5 Avant?

The Audi A5 Avant is offered with All-Wheel Drive or Front-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.