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Mercedes B Class vs Tesla Model 3 comparison

Compare performance (238 HP vs 460 HP), boot space and price (33,100 £ vs 31,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or Tesla Model 3?

Mercedes B Class vs Tesla Model 3: Key differences

Mercedes B Class

4.9 (5 Reviews)
rate
  • clearly lighter
details

Tesla Model 3

4 (5 Reviews)
rate
  • barely cheaper
  • clearly more power
  • considerably quicker 0–100 km/h
  • 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:

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

Tesla Model 3 is barely cheaper – starting at 31,700 £ , while the Mercedes B Class costs 33,100 £ . That’s a price difference of around 1,424 £.

Model 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 Tesla Model 3 offers clearly more power – delivering 460 HP compared to 238 HP. That’s roughly 222 HP more horsepower.

When accelerating from 0 to 100 km/h, the Tesla Model 3 is considerably quicker – completing the sprint in 3.1 s, while the Mercedes B Class takes 6.5 s. That’s about 3.4 s quicker.

There’s also a difference in torque: the Tesla Model 3 delivers noticeably more torque with 660 Nm compared to 400 Nm. That’s about 260 Nm more.

B 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 B Class is clearly lighter – 1,405 kg compared to 1,772 kg. The difference is around 367 kg.

Looking at boot space, the Tesla Model 3 offers clearly more boot space – 594 L compared to 455 L. That’s a difference of about 139 L.

When it comes to payload, the Mercedes B Class carries visibly more – 550 kg compared to 377 kg. That’s a difference of about 173 kg.

Who wins the race in the data check?

The Tesla Model 3 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 £31,700
Model 3

Tesla Model 3

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 283 - 460 HP
  • Consumption kWh/100km : 13 - 16.7 kWh/100km
  • Electric Range : 534 - 750 km
details

Frequently compared as well

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Mercedes B Class
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Mercedes B Class
Tesla Model 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.

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Reviews Mercedes B Class

4.9 (5 Reviews)
rate
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

Tesla Model 3

The Tesla Model 3 slices through daily commuting with a silent, confident shove that makes petrolheads reassess their life choices, while its minimalist cabin feels more like a slick gadget gallery than a traditional car interior. For buyers after a fuss-free, tech-forward electric with plenty of grin factor and low running drama, it’s hard to beat—just don't be surprised when the car updates itself overnight.

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0x0-Model3_09

Reviews Tesla Model 3

4 (5 Reviews)
rate
dino999
18 Nov 2025, 08:47:05

I wanted to give 0 stars but you can't — unfortunately, it sucks.

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Mercedes B Class
Tesla Model 3

Costs and Consumption
Price
33,100 - 52,500 £
Price
31,700 - 50,100 £
Consumption L/100km
5.1 - 6.9 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
13 - 16.7 kWh/100km
Electric Range
-
Electric Range
534 - 750 km
Battery Capacity
-
Battery Capacity
83 kWh
co2
133 - 156 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
4
Curb weight
1,405 - 1,565 kg
Curb weight
1,772 - 1,929 kg
Trunk capacity
445 - 455 L
Trunk capacity
594 L
Length
-
Length
4,724 mm
Width
1,796 mm
Width
1,850 mm
Height
-
Height
1,431 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 550 kg
Payload
303 - 377 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
All-Wheel Drive, Rear-Wheel Drive
Power HP
116 - 238 HP
Power HP
283 - 460 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
3.1 - 6.2 s
Max Speed
-
Max Speed
262 km/h
Torque
200 - 400 Nm
Torque
420 - 660 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 175 kW
Power kW
208 - 338 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
-

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