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BMW 8 Series Coupé vs Mercedes S-Class comparison

Compare performance (625 HP vs 635 HP), boot space and price (90,000 £ vs 104,000 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Coupé or Mercedes S-Class?

BMW 8 Series Coupé vs Mercedes S-Class: Key differences

BMW 8 Series Coupé

  • a bit cheaper
  • noticeably quicker 0–100 km/h
  • a bit lighter
details

Mercedes S-Class

  • barely more power
  • significantly more efficient
  • a bit more trunk space
details

By Achim Sedelmaier

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

8 Series Coupé

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.

BMW 8 Series Coupé is a bit cheaper – starting at 90,000 £ , while the Mercedes S-Class costs 104,000 £ . That’s a price difference of around 14,019 £.

Fuel consumption also shows a difference: the Mercedes S-Class uses 2.2 L/100km and is significantly more efficient than the BMW 8 Series Coupé with 6.7 L/100km. The difference is about 4.5 L/100km.

S-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 Mercedes S-Class offers barely more power – delivering 635 HP compared to 625 HP. That’s roughly 10 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Coupé is noticeably quicker – completing the sprint in 3.2 s, while the Mercedes S-Class takes 4 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the Mercedes S-Class delivers somewhat more torque with 850 Nm compared to 750 Nm. That’s about 100 Nm more.

8 Series Coupé

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, BMW 8 Series Coupé is a bit lighter – 1,805 kg compared to 2,165 kg. The difference is around 360 kg.

Looking at boot space, the Mercedes S-Class offers a bit more boot space – 530 L compared to 440 L. That’s a difference of about 90 L.

When it comes to payload, the Mercedes S-Class carries slightly more – 660 kg compared to 545 kg. That’s a difference of about 115 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.

from £104,000
S-Class

Mercedes S-Class

  • Engine Type Petrol MHEV, Plugin Hybrid, Diesel MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive, Rear-Wheel Drive
  • Power HP 336 - 635 HP
  • Consumption L/100km 2.2 - 11 L/100km
  • Electric Range 98 - 118 km
details

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 8 Series Coupé

The BMW 8 Series Coupé blends elegant, low-slung coupé looks with a purposeful, athletic stance that hints at both comfort and serious driving fun. Inside it feels indulgent and driver-focused, the sort of car that turns motorway miles into a breeze while quietly daring you to chase a twisty back road — and yes, it photographs magnificently.

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Reviews BMW 8 Series Coupé

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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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Costs and Consumption
Price
90,000 - 158,900 £
Price
104,000 - 201,400 £
Consumption L/100km
6.7 - 11.5 L/100km
Consumption L/100km
2.2 - 11 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
98 - 118 km
Battery Capacity
-
Battery Capacity
-
co2
176 - 263 g/km
co2
50 - 252 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Coupe
Body Type
Sedan
Seats
4 - 5
Seats
5
Doors
2 - 4
Doors
-
Curb weight
1,805 - 2,085 kg
Curb weight
2,165 - 2,650 kg
Trunk capacity
420 - 440 L
Trunk capacity
345 - 530 L
Length
4,851 - 5,098 mm
Length
-
Width
1,902 - 1,943 mm
Width
1,921 mm
Height
1,346 - 1,420 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
370 - 545 kg
Payload
420 - 660 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
333 - 625 HP
Power HP
336 - 635 HP
Acceleration 0-100km/h
3.2 - 5.4 s
Acceleration 0-100km/h
4 - 5.7 s
Max Speed
250 km/h
Max Speed
-
Torque
500 - 750 Nm
Torque
560 - 850 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
245 - 460 kW
Power kW
247 - 467 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
2,989 - 3,982 cm3

General
Model Year
2024
Model Year
2026
CO2 Efficiency Class
G
CO2 Efficiency Class
G, B, F
Brand
BMW
Brand
Mercedes-Benz
What drive types are available for the BMW 8 Series Coupé?

The BMW 8 Series Coupé is offered with All-Wheel Drive or Rear-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.