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Mercedes S-Class vs Mercedes A Class comparison

Compare performance (635 HP vs 421 HP), boot space and price (104,000 £ vs 32,600 £ ) at a glance. Find out which car is the better choice for you – Mercedes S-Class or Mercedes A Class?

Mercedes S-Class vs Mercedes A Class: Key differences

Mercedes S-Class

  • visibly more power
  • marginally more efficient
  • markedly more electric range
details

Mercedes A Class

2.7 (1 Reviews)
rate
  • significantly cheaper
  • barely quicker 0–100 km/h
  • significantly lighter
details

By Achim Sedelmaier

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.

Mercedes A Class is significantly cheaper – starting at 32,600 £ , while the Mercedes S-Class costs 104,000 £ . That’s a price difference of around 71,451 £.

Fuel consumption also shows a difference: the Mercedes S-Class uses 2.2 L/100km and is marginally more efficient than the Mercedes A Class with 2.3 L/100km. The difference is about 0.1 L/100km.

As for electric range, the Mercedes S-Class offers markedly more range – reaching up to 118 km, about 33 km more than the Mercedes A Class.

A 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 offers visibly more power – delivering 635 HP compared to 421 HP. That’s roughly 214 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes A Class is barely quicker – completing the sprint in 3.9 s, while the Mercedes S-Class takes 4 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Mercedes S-Class delivers substantially more torque with 850 Nm compared to 500 Nm. That’s about 350 Nm more.

S-Class

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 terms of curb weight, Mercedes A Class is significantly lighter – 1,440 kg compared to 2,165 kg. The difference is around 725 kg.

When it comes to payload, the Mercedes S-Class carries markedly more – 660 kg compared to 485 kg. That’s a difference of about 175 kg.

Who wins the race in the data check?

The Mercedes S-Class sits just 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 - 635 HP
  • Consumption L/100km : 2.2 - 11 L/100km
  • Electric Range : 98 - 118 km
details

Frequently compared as well

Mercedes A Class
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The Mercedes A‑Class is the sporty, tech‑savvy compact that thrills with sharp handling and a slick cockpit, while the Mercedes B‑Class trades a bit of attitude for towering practicality, roomier seats and a more useful boot. Choose the A‑Class if you want driving fun and style; pick the B‑Class if …
Mercedes A Class
Mercedes GLA
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The Mercedes A‑Class is the sharper, more driver-focused hatch that feels nimble and refined on twisty roads, while the Mercedes GLA trades a bit of agility for SUV practicality with a higher ride height, extra luggage space and a commanding view of the road. Pick the A‑Class for sporty handling, …
Mercedes S-Class
Mercedes A Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
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.

details
21C0428_003
21C0428_004
21C0613_021
21C0613_037
21C0613_042
21C0613_043

Reviews Mercedes S-Class

No reviews yet. Share your experience and help others decide.

Mercedes A Class

The Mercedes A‑Class arrives as a compact charmer that dresses premium materials and a cockpit full of screens in a tidy, city-friendly package, delivering surprising agility and poise. For buyers who want a luxury badge, clever tech and a car that's equally happy in tight streets or on a spirited country run, the A‑Class offers a grown-up feel with a cheeky streak.

details
18C0292_008
18C0292_010
18C0292_042
18C0291_067
18C0122_04

Reviews Mercedes A Class

2.7 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

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Mercedes S-Class
Mercedes A Class

Costs and Consumption
Price
104,000 - 201,400 £
Price
32,600 - 66,500 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
2.3 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
98 - 118 km
Electric Range
85 km
Battery Capacity
-
Battery Capacity
-
co2
50 - 252 g/km
co2
53 - 205 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,165 - 2,650 kg
Curb weight
1,440 - 1,695 kg
Trunk capacity
-
Trunk capacity
310 - 350 L
Length
-
Length
-
Width
1,921 mm
Width
1,796 - 1,850 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
420 - 660 kg
Payload
450 - 485 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Petrol MHEV, Diesel, Plugin Hybrid, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
336 - 635 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
3.9 - 9.7 s
Max Speed
-
Max Speed
-
Torque
560 - 850 Nm
Torque
200 - 500 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
247 - 467 kW
Power kW
85 - 310 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2026
Model Year
2025
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
D, E, B, G
Brand
Mercedes-Benz
Brand
Mercedes-Benz
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.