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Mercedes B Class vs Renault Symbioz comparison

Compare performance (238 HP vs 158 HP), boot space and price (33,100 £ vs 24,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or Renault Symbioz?

Mercedes B Class vs Renault Symbioz: Key differences

Mercedes B Class

4.9 (5 Reviews)
rate
  • clearly more power
  • clearly quicker 0–100 km/h
details

Renault Symbioz

4.5 (5 Reviews)
rate
  • noticeably cheaper
  • a bit more efficient
  • very slightly lighter
  • clearly more trunk space
details

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

By Achim Sedelmaier

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

B Class

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.

Renault Symbioz is noticeably cheaper – starting at 24,700 £ , while the Mercedes B Class costs 33,100 £ . That’s a price difference of around 8,444 £.

Fuel consumption also shows a difference: the Renault Symbioz uses 4.5 L/100km and is a bit more efficient than the Mercedes B Class with 5.1 L/100km. The difference is about 0.6 L/100km.

Symbioz

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 B Class offers clearly more power – delivering 238 HP compared to 158 HP. That’s roughly 80 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes B Class is clearly quicker – completing the sprint in 6.5 s, while the Renault Symbioz takes 9.1 s. That’s about 2.6 s quicker.

There’s also a difference in torque: the Mercedes B Class delivers noticeably more torque with 400 Nm compared to 265 Nm. That’s about 135 Nm more.

B 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, Renault Symbioz is very slightly lighter – 1,359 kg compared to 1,405 kg. The difference is around 46 kg.

Looking at boot space, the Renault Symbioz offers clearly more boot space – 576 L compared to 455 L. That’s a difference of about 121 L.

When it comes to payload, the Mercedes B Class carries somewhat more – 550 kg compared to 459 kg. That’s a difference of about 91 kg.

Who wins the race in the data check?

The Mercedes B Class 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 £33,100
B Class

Mercedes B Class

  • Engine Type Petrol MHEV, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 238 HP
  • Consumption L/100km 5.1 - 6.9 L/100km
details

Frequently compared as well

Renault Austral
Renault Symbioz
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Renault Symbioz
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Captur and Symbioz showcase two very different Renault directions: Captur is a practical compact crossover focused on everyday comfort, economy and usability, while Symbioz is a forward‑looking concept exploring electric power, autonomous driving and living‑space ideas. This short comparison will …
Mercedes B Class
Renault Symbioz

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
18C0947_011
18C0947_009
18C0953_005
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Reviews Mercedes B Class

4.9 (5 Reviews)
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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

Renault Symbioz

The Renault Symbioz is a forward-looking concept car that imagines a seamless link between vehicle and home, pairing a lounge-like cabin with striking, futuristic styling. More idea than production plan, it showcases Renault's vision for connected, autonomous and sustainable mobility while provoking debate about how we will live and travel.

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R-DAM_1579937
R-DAM_1580039
R-DAM_1579964

Reviews Renault Symbioz

4.5 (5 Reviews)
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PF
19 Feb 2026, 11:56:45

A delightful hybrid (family car). Roomy, quick (combined nearly 150 hp) and safe.

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
Michael
5 Dec 2025, 23:17:28

I've been driving the Symbioz Full Hybrid with the iconic trim for 3,500 km. I test-drove both cars. I think the win goes to the Symbioz. Good quality at a family-friendly price. Unfortunately the Opel is simply too expensive. Strangely, what never really gets mentioned is that the Symbioz's suspension is absolutely superb.

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Mercedes B Class
Renault Symbioz

Costs and Consumption
Price
33,100 - 52,500 £
Price
24,700 - 31,100 £
Consumption L/100km
5.1 - 6.9 L/100km
Consumption L/100km
4.5 - 6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
133 - 156 g/km
co2
102 - 136 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
1,359 - 1,465 kg
Trunk capacity
445 - 455 L
Trunk capacity
492 - 576 L
Length
-
Length
-
Width
1,796 mm
Width
1,797 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 550 kg
Payload
455 - 459 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel
Engine Type
Full Hybrid, Petrol MHEV
Transmission
Automatic
Transmission
Automatic, Manuel
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox, Manual Gearbox, Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
116 - 238 HP
Power HP
140 - 158 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
9.1 - 11 s
Max Speed
-
Max Speed
-
Torque
200 - 400 Nm
Torque
250 - 265 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
85 - 175 kW
Power kW
103 - 116 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
1,332 - 1,789 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
C, D, E
Brand
Mercedes-Benz
Brand
Renault
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.