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Mercedes B Class vs VW ID.3 comparison

Compare performance (238 HP vs 231 HP), boot space and price (33,100 £ vs 29,100 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or VW ID.3?

Mercedes B Class vs VW ID.3: Key differences

Mercedes B Class

4.9 (5 Reviews)
rate
  • very slightly more power
  • marginally quicker 0–100 km/h
  • noticeably lighter
  • somewhat more trunk space
details

VW ID.3

4.8 (6 Reviews)
rate
  • somewhat cheaper
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:

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.

VW ID.3 is somewhat cheaper – starting at 29,100 £ , while the Mercedes B Class costs 33,100 £ . That’s a price difference of around 3,991 £.

ID.3

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 B Class offers very slightly more power – delivering 238 HP compared to 231 HP. That’s roughly 7 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes B Class is marginally quicker – completing the sprint in 6.5 s, while the VW ID.3 takes 7.1 s. That’s about 0.6 s quicker.

There’s also a difference in torque: the Mercedes B Class delivers somewhat more torque with 400 Nm compared to 350 Nm. That’s about 50 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, Mercedes B Class is noticeably lighter – 1,405 kg compared to 1,885 kg. The difference is around 480 kg.

Looking at boot space, the Mercedes B Class offers somewhat more boot space – 455 L compared to 383 L. That’s a difference of about 72 L.

When it comes to payload, the Mercedes B Class carries a bit more – 550 kg compared to 464 kg. That’s a difference of about 86 kg.

Who wins the race in the data check?

The VW ID.3 comes out modestly ahead 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 £29,100
ID.3

VW ID.3

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive
  • Power HP : 170 - 231 HP
  • Consumption kWh/100km : 13.9 - 14.4 kWh/100km
  • Electric Range : 410 - 629 km
details

Frequently compared as well

Renault R5
VW ID.3
VS
Choosing between the retro-inspired Renault 5 and the practical VW ID.3 comes down to whether you value character and compact city agility or proven electric range and grown-up practicality. This comparison cuts through the marketing to show where each car shines and which one fits different kinds …
Mercedes A Class
Mercedes B 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 B Class
VW ID.3

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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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

VW ID.3

The VW ID.3 is Volkswagen’s compact electric hatch that prioritizes practical daily usability with a comfortable, modern interior. It delivers a smooth, quiet driving experience and intuitive tech that makes switching to electric straightforward.

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Reviews VW ID.3

4.8 (6 Reviews)
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Pennings
6 May 2026, 08:03:27

ID.3 catches less wind. It's more pleasant, especially on the highway. Also: more economical, lighter and with the same step‑in height.

How do you mainly use this car? (optional): Leisure / Weekend driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Mr C Blagdon
14 Jan 2026, 12:07:54

Great all rounder, surprisingly spacious cabin. Rapid and refined. Not quiet enough space in the boot for a bike, could use more ground clearance.

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

Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class and Mercedes GLA target buyers who want Mercedes practicality with premium touches, but they take different paths: the B‑Class is a spacious, hatchback-style people carrier while the GLA is a compact crossover with a higher ride height and sportier stance. This comparison looks …
VW ID.3
VW Polo
VS
Comparing the ID.3 and the Polo pits Volkswagen's all-electric compact against its conventional small hatchback, highlighting a choice between emissions-free efficiency and traditional practicality. The ID.3 emphasizes electric range, advanced tech and a spacious cabin, while the Polo offers lower …
VW ID.3
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VW ID.3
VW ID.Polo
VS
Choosing between the Volkswagen ID.3 and the VW ID. Polo comes down to whether you want a compact electric hatch with more range and interior space (ID.3) or a smaller, city-focused EV that prioritizes maneuverability and lower running costs (ID. Polo). Below I'll compare their range, practicality, …
VW ID.3
VW ID.4
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Choosing between the VW ID.3 and the VW ID.4 means deciding between a compact hatchback-style electric built for city driving and a roomier compact SUV that prioritizes cargo space and versatility. I’ll compare range, practicality, driving feel and running costs so you can see which one suits your …
BYD Dolphin
VW ID.3
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Comparing the BYD Dolphin and the Volkswagen ID.3 gives a clear picture of two distinct approaches to compact electric hatchbacks: the Dolphin emphasizes value, efficiency and clever packaging, while the ID.3 leans on refinement, driving dynamics and European build quality. If you prioritise range, …
Ford Puma
VW ID.3
VS
If you want a cheeky, petrol-powered crossover with nimble handling and clever storage, the Ford Puma punches above its class; if you prefer silent, techy electric motoring with a roomy, refined cabin, the VW ID.3 is the smarter, greener choice. Choose the Puma for personality and everyday …
Volvo EX30
VW ID.3
VS
The Volvo EX30 arrives as a compact, sharply tuned EV with Scandinavian flair — sprightly, surprisingly premium and built to put a grin on urban commutes. The VW ID.3, by contrast, plays the sensible family card with more interior space, comfort and range options, so pick the EX30 for driving fun …
Mercedes B Class
VW ID.3

Costs and Consumption
Price
33,100 - 52,500 £
Price
29,100 - 40,800 £
Consumption L/100km
5.1 - 6.9 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
13.9 - 14.4 kWh/100km
Electric Range
-
Electric Range
410 - 629 km
Battery Capacity
-
Battery Capacity
-
co2
133 - 156 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,405 - 1,565 kg
Curb weight
1,885 - 1,966 kg
Trunk capacity
445 - 455 L
Trunk capacity
383 L
Length
-
Length
-
Width
1,796 mm
Width
1,809 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 550 kg
Payload
422 - 464 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
116 - 238 HP
Power HP
170 - 231 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
7.1 - 8 s
Max Speed
-
Max Speed
-
Torque
200 - 400 Nm
Torque
350 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 175 kW
Power kW
125 - 170 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
-

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