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Mercedes B Class vs Peugeot 408 comparison

Compare performance (238 HP vs 240 HP), boot space and price (33,100 £ vs 35,100 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or Peugeot 408?

Mercedes B Class vs Peugeot 408: Key differences

Mercedes B Class

4.9 (6 Reviews)
rate
  • very slightly cheaper
  • somewhat quicker 0–100 km/h
  • very slightly lighter
details

Peugeot 408

4.9 (1 Reviews)
rate
  • very slightly more power
  • clearly more efficient
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

B Class

Costs and Efficiency:

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

Mercedes B Class is very slightly cheaper – starting at 33,100 £ , while the Peugeot 408 costs 35,100 £ . That’s a price difference of around 1,988 £.

Fuel consumption also shows a difference: the Peugeot 408 uses 2.6 L/100km and is clearly more efficient than the Mercedes B Class with 5.1 L/100km. The difference is about 2.5 L/100km.

408

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 Peugeot 408 offers very slightly more power – delivering 240 HP compared to 238 HP. That’s roughly 2 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes B Class is somewhat quicker – completing the sprint in 6.5 s, while the Peugeot 408 takes 7.2 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the Mercedes B Class delivers only slightly more torque with 400 Nm compared to 360 Nm. That’s about 40 Nm more.

B Class

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, Mercedes B Class is very slightly lighter – 1,405 kg compared to 1,544 kg. The difference is around 139 kg.

When it comes to payload, the Mercedes B Class carries moderately more – 550 kg compared to 456 kg. That’s a difference of about 94 kg.

Who wins the race in the data check?

The Peugeot 408 is clearly superior 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 £35,100
408

Peugeot 408

  • Engine Type Petrol MHEV, Plug-in Hybrid, Electric
  • Transmission Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 145 - 240 HP
  • Consumption L/100km 2.6 - 5 L/100km
  • Consumption kWh/100km 14.7 kWh/100km
  • Electric Range 79 - 456 km
details

Frequently compared as well

Peugeot 3008
Peugeot 408
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Mercedes B Class
Peugeot 408

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes B Class

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
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18C0947_044

Reviews Mercedes B Class

4.9 (6 Reviews)
rate
SiBa
31 Jul 2026, 14:51:34

We've been driving only the B180D automatic for 9 years — there's nothing better. Great on long trips; the next one will be another B180D automatic.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Safety
Practicality / Trunk & Everyday Use
Value for Money
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Peugeot 408

The Peugeot 408 blends a coupe-like roofline with practical sensibility, delivering striking looks and a surprisingly airy, premium-feeling cabin. On the road it prefers comfort and poise over manic thrills, making it a smart, stylish choice for buyers who want something a bit different from the usual family hatchback.

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Reviews Peugeot 408

4.9 (1 Reviews)
rate
Klaudia
15 Jan 2026, 19:46:29

This is one of the most beautiful cars of our time, in an era when every brand churns out cookie‑cutter models — as long as they look like an SUV. It's comfortable, incredibly spacious, picks up nicely on the road and always makes a great impression everywhere ;)

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Mercedes B Class
Peugeot 408

Costs and Consumption
Price
33,100 - 52,500 £
Price
35,100 - 48,000 £
Consumption L/100km
5.1 - 6.9 L/100km
Consumption L/100km
2.6 - 5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
14.7 kWh/100km
Electric Range
-
Electric Range
79 - 456 km
Battery Capacity
-
Battery Capacity
-
co2
133 - 156 g/km
co2
0 - 114 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,405 - 1,565 kg
Curb weight
1,544 - 1,879 kg
Trunk capacity
445 - 455 L
Trunk capacity
-
Length
-
Length
-
Width
1,796 mm
Width
1,848 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 550 kg
Payload
371 - 456 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel
Engine Type
Petrol MHEV, Plug-in Hybrid, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic, Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
116 - 238 HP
Power HP
145 - 240 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
7.2 - 9.4 s
Max Speed
-
Max Speed
-
Torque
200 - 400 Nm
Torque
230 - 360 Nm
Number of Cylinders
4
Number of Cylinders
3 - 4
Power kW
85 - 175 kW
Power kW
107 - 176 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
1,199 - 1,598 cm3

General
Model Year
2025
Model Year
2026
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
C, B, A
Brand
Mercedes-Benz
Brand
Peugeot
What drivetrain options does the Mercedes B Class have?

Available configurations include Front-Wheel Drive or All-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.