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Mercedes S Class vs BMW 8 Series Coupé comparison

Compare performance (585 HP vs 625 HP), boot space and price (104,000 £ vs 90,000 £ ) at a glance. Find out which car is the better choice for you – Mercedes S Class or BMW 8 Series Coupé?

Mercedes S Class vs BMW 8 Series Coupé: Key differences

Mercedes S Class

  • significantly more efficient

BMW 8 Series Coupé

  • somewhat cheaper
  • barely more power
  • noticeably quicker 0–100 km/h
  • somewhat lighter

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

S Class

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

BMW 8 Series Coupé is somewhat 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.

8 Series Coupé

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 BMW 8 Series Coupé offers barely more power – delivering 625 HP compared to 585 HP. That’s roughly 40 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.

Both models offer the same torque – 750 Nm.

S Class

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

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 is far ahead overall 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 - 585 HP
  • Consumption L/100km : 2.2 - 10.6 L/100km
  • Electric Range : 102 - 118 km
details

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View detailed analysis

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View detailed analysis

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View detailed analysis

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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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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BMW 8 Series Coupé

Costs and Consumption
Price
104,000 - 139,100 £
Price
90,000 - 158,900 £
Consumption L/100km
2.2 - 10.6 L/100km
Consumption L/100km
6.7 - 11.5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
102 - 118 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
50 - 241 g/km
co2
176 - 263 g/km
Fuel tank capacity
-
Fuel tank capacity
66 - 68 L

Dimensions and Body
Body Type
Sedan
Body Type
Coupe
Seats
5
Seats
4 - 5
Doors
-
Doors
2 - 4
Curb weight
2,165 - 2,515 kg
Curb weight
1,805 - 2,085 kg
Trunk capacity
-
Trunk capacity
420 - 440 L
Length
-
Length
4,851 - 5,098 mm
Width
1,921 mm
Width
1,902 - 1,943 mm
Height
-
Height
1,346 - 1,420 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
555 - 660 kg
Payload
370 - 545 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Diesel MHEV, Petrol
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
336 - 585 HP
Power HP
333 - 625 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
3.2 - 5.4 s
Max Speed
-
Max Speed
250 km/h
Torque
560 - 750 Nm
Torque
500 - 750 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
247 - 430 kW
Power kW
245 - 460 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
2,993 - 4,395 cm3

General
Model Year
2,026
Model Year
2,024
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
BMW
Is the Mercedes S Class offered with different drivetrains?

The Mercedes S Class 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.