Audi A8 vs Mercedes S Class - Differences and prices compared

Q: How much power does the Audi A8 deliver on the road?

The Audi A8 reaches a peak output of 571 HP, depending on the model.

Q: What are the consumption figures for the Audi A8 in liters per 100 km?

On average, the Audi A8 consumes 7 L.

Q: How fast can the Audi A8 go?

Depending on the model, top speed is 250 km/h.

Q: What are the Audi A8’s length, width and height?

The Audi A8 measures 5190 mm long, 1945 mm wide and 1473 mm high.

Q: What drive types are available for the Mercedes S Class?

The Mercedes S Class is available as All-Wheel Drive or Rear-Wheel Drive.

Q: What is the maximum horsepower of the Mercedes S Class?

Depending on the version, the Mercedes S Class delivers up to 802 HP.

Q: How much fuel does the Mercedes S Class use?

On average, the Mercedes S Class consumes 2.30 L.

Q: How far can the Mercedes S Class go on a full charge?

The WLTP range is up to 117 km.

Q: What is the battery capacity of the Mercedes S Class?

The battery offers a capacity of 10.40 kWh.

Compare performance (571 HP vs 802 HP), boot space and price (91400 £ vs 97200 £ ) at a glance. Find out which car is the better choice for you – Audi A8 or Mercedes S Class?

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Audi A8

5 (1 Reviews)

Mercedes S Class

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

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 A8 has a hardly perceptible advantage in terms of price – it starts at 91400 £ , while the Mercedes S Class costs 97200 £ . That’s a price difference of around 5799 £.

Fuel consumption also shows a difference: Mercedes S Class manages with 2.30 L and is therefore decisively more efficient than the Audi A8 with 7 L. The difference is about 4.70 L per 100 km.

S 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 S Class has a clearly perceptible edge – offering 802 HP compared to 571 HP. That’s roughly 231 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes S Class is a bit quicker – completing the sprint in 3.30 s, while the Audi A8 takes 3.80 s. That’s about 0.50 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 decisively stronger with 1430 Nm compared to 800 Nm. That’s about 630 Nm difference.

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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 A8 is barely noticeable lighter – 2035 kg compared to 2070 kg. The difference is around 35 kg.

In terms of boot space, the Mercedes S Class offers minimal more room – 550 L compared to 505 L. That’s a difference of about 45 L.

When it comes to payload, Mercedes S Class barely noticeable takes the win – 730 kg compared to 700 kg. That’s a difference of about 30 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 A8

Mercedes S Class

Costs and Consumption

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Price

Consumption L/100km

co2

Fuel tank capacity

Engine and Performance

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Power HP

Acceleration 0-100km/h

Max Speed

Torque

Number of Cylinders

Power kW

Engine capacity

Dimensions and Body

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Seats

Curb weight

Trunk capacity

Payload

from about £97,200

Mercedes S Class

Price : 97200 - 204400 £
Body Type : Sedan
Engine Type : Petrol MHEV, Petrol, Plugin Hybrid, Diesel MHEV
Transmission : Automatic
Transmission Detail : Automatic Gearbox
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
Battery Capacity : 10.40 kWh
Seats : 5
Acceleration 0-100km/h : 3.3 - 5.9 s
Model Year : 2024 - 2025
Max Speed : 250 km/h
Torque : 500 - 1430 Nm
Number of Cylinders : 6 - 12
Doors : 4
Model : S-Klasse
Modell : S 450, S 450 lang, S 500, S 500 lang, Maybach S 580, Maybach S 680, S 63 AMG E PERFORMANCE, S 580, S 350 d, S 450 d, S 580 lang, S 350 d lang, S 450 d lang, Maybach S 580 e, S 450 e, S 580 e, S 450 e lang, S 580 e lang
CO2 Efficiency Class : G, E, F, B
Trim Level : 4MATIC 9G-TRONIC, AMG Line 4MATIC 9G-TRONIC, 4MATIC+ SPEEDSHIFT MCT 9G, Edition 4MATIC 9G-TRONIC, 9G-TRONIC, AMG Line 9G-TRONIC, Edition 9G-TRONIC
Power kW : 247 - 590 kW
co2 : 52 - 301 g/km
Engine capacity : 2989 - 5980 cm3
Curb weight : 2070 - 2650 kg
Fuel tank capacity : 65 - 76 L
Trunk capacity : 325 - 550 L
Length : 5179 - 5469 mm
Width : 1921 - 1954 mm
Height : 1503 - 1515 mm
Brand : Mercedes-Benz
Payload : 420 - 730 kg

details

Audi A8

5 (1 Reviews)

The Audi A8 arrives with the kind of quiet authority that makes other limousines feel like they’re trying too hard, offering a cabin wrapped in subtle luxury and tech that never demands attention. For buyers who want composed comfort and discreet status, it’s the sensible splurge that turns daily commutes into a private parade.

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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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Audi A8

Mercedes S Class

Costs and Consumption
Price 91400 - 134900 £	Price 97200 - 204400 £
Consumption L/100km 7 - 11.5 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 183 - 260 g/km	co2 52 - 301 g/km
Fuel tank capacity 82 L	Fuel tank capacity 65 - 76 L

Dimensions and Body
Body Type Sedan	Body Type Sedan
Seats 5	Seats 5
Doors 4	Doors 4
Curb weight 2035 - 2295 kg	Curb weight 2070 - 2650 kg
Trunk capacity 505 L	Trunk capacity 325 - 550 L
Length 5190 - 5320 mm	Length 5179 - 5469 mm
Width 1945 mm	Width 1921 - 1954 mm
Height 1473 - 1488 mm	Height 1503 - 1515 mm
Max trunk capacity -	Max trunk capacity -
Payload 540 - 700 kg	Payload 420 - 730 kg

Engine and Performance
Engine Type Petrol MHEV, Diesel MHEV	Engine Type Petrol MHEV, Petrol, Plugin Hybrid, Diesel MHEV
Transmission Automatic	Transmission Automatic
Transmission Detail Automatic Gearbox	Transmission Detail Automatic Gearbox
Drive Type All-Wheel Drive	Drive Type All-Wheel Drive, Rear-Wheel Drive
Power HP 286 - 571 HP	Power HP 336 - 802 HP
Acceleration 0-100km/h 3.8 - 5.9 s	Acceleration 0-100km/h 3.3 - 5.9 s
Max Speed 250 km/h	Max Speed 250 km/h
Torque 500 - 800 Nm	Torque 500 - 1430 Nm
Number of Cylinders 6 - 8	Number of Cylinders 6 - 12
Power kW 210 - 420 kW	Power kW 247 - 590 kW
Engine capacity 2967 - 3996 cm3	Engine capacity 2989 - 5980 cm3