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Audi A3 Limousine vs Mercedes S Class - Differences and prices compared

Compare performance (400 HP vs 802 HP), boot space and price (27700 £ vs 97200 £ ) at a glance. Find out which car is the better choice for you – Audi A3 Limousine or Mercedes S Class?

Audi A3 Limousine

Mercedes S Class

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

A3 Limousine

Costs and Efficiency:

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

Audi A3 Limousine has a decisively advantage in terms of price – it starts at 27700 £ , while the Mercedes S Class costs 97200 £ . That’s a price difference of around 69485 £.

Fuel consumption also shows a difference: Mercedes S Class manages with 2.30 L and is therefore convincingly more efficient than the Audi A3 Limousine with 4.40 L. The difference is about 2.10 L per 100 km.

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 convincingly edge – offering 802 HP compared to 400 HP. That’s roughly 402 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes S Class is to a small extent quicker – completing the sprint in 3.30 s, while the Audi A3 Limousine takes 3.80 s. That’s about 0.50 s faster.

There’s also a difference in torque: Mercedes S Class pulls decisively stronger with 1430 Nm compared to 500 Nm. That’s about 930 Nm difference.

A3 Limousine

Space and Everyday Use:

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

Both vehicles offer seating for 5 people.

In curb weight, Audi A3 Limousine is significantly lighter – 1360 kg compared to 2070 kg. The difference is around 710 kg.

In terms of boot space, the Mercedes S Class offers distinct more room – 550 L compared to 425 L. That’s a difference of about 125 L.

When it comes to payload, Mercedes S Class clearly perceptible takes the win – 730 kg compared to 480 kg. That’s a difference of about 250 kg.

Who wins the race in the data check?

The Mercedes S Class 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.

Audi A3 Limousine
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
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Audi A3 Limousine

The Audi A3 sedan dresses up compact practicality in clean, premium lines, giving you the feel of an upscale small car with a proper boot. Inside it’s neat, driver-focused and nicely finished — a sensible, enjoyable daily companion that prefers poise over showy theatrics.

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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.

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Reviews Audi A3 Limousine

Reviews Mercedes S Class

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Audi A3 Limousine
Mercedes S Class

Costs and Consumption
Price
27700 - 58300 £
Price
97200 - 204400 £
Consumption L/100km
4.4 - 9.2 L
Consumption L/100km
2.3 - 13.2 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
31 - 117 km
Battery Capacity
-
Battery Capacity
10.40 kWh
co2
115 - 208 g/km
co2
52 - 301 g/km
Fuel tank capacity
-
Fuel tank capacity
65 - 76 L

Dimensions and Body
Body Type
Sedan
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
4
Curb weight
1360 - 1640 kg
Curb weight
2070 - 2650 kg
Trunk capacity
321 - 425 L
Trunk capacity
325 - 550 L
Length
-
Length
5179 - 5469 mm
Width
1816 - 1851 mm
Width
1921 - 1954 mm
Height
-
Height
1503 - 1515 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
415 - 480 kg
Payload
420 - 730 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV, Diesel
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, Diesel MHEV
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
116 - 400 HP
Power HP
336 - 802 HP
Acceleration 0-100km/h
3.8 - 10.1 s
Acceleration 0-100km/h
3.3 - 5.9 s
Max Speed
-
Max Speed
250 km/h
Torque
220 - 500 Nm
Torque
500 - 1430 Nm
Number of Cylinders
4 - 5
Number of Cylinders
6 - 12
Power kW
85 - 294 kW
Power kW
247 - 590 kW
Engine capacity
1498 - 2480 cm3
Engine capacity
2989 - 5980 cm3

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

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Is the Audi A3 Limousine offered with different drivetrains?

The Audi A3 Limousine 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.