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BYD Atto 3 vs Mercedes B Class comparison

Compare performance (449 HP vs 238 HP), boot space and price (33,400 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – BYD Atto 3 or Mercedes B Class?

BYD Atto 3 vs Mercedes B Class: Key differences

BYD Atto 3

5 (2 Reviews)
rate
  • clearly more power
  • substantially more electric range
  • significantly quicker 0–100 km/h

Mercedes B Class

4.9 (5 Reviews)
rate
  • very slightly cheaper
  • noticeably lighter
  • marginally more trunk space

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

Atto 3

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.

Mercedes B Class is very slightly cheaper – starting at 33,100 £ , while the BYD Atto 3 costs 33,400 £ . That’s a price difference of around 291 £.

As for electric range, the BYD Atto 3 offers substantially more range – reaching up to 510 km, about 427 km more than the Mercedes B Class.

B Class

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 BYD Atto 3 offers clearly more power – delivering 449 HP compared to 238 HP. That’s roughly 211 HP more horsepower.

When accelerating from 0 to 100 km/h, the BYD Atto 3 is significantly quicker – completing the sprint in 3.9 s, while the Mercedes B Class takes 6.5 s. That’s about 2.6 s quicker.

Looking at top speed, the Mercedes B Class is visibly faster – reaching 223 km/h, while the BYD Atto 3 tops out at 160 km/h. The difference is around 63 km/h.

There’s also a difference in torque: the BYD Atto 3 delivers moderately more torque with 560 Nm compared to 450 Nm. That’s about 110 Nm more.

Atto 3

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 noticeably lighter – 1,405 kg compared to 1,825 kg. The difference is around 420 kg.

Looking at boot space, the Mercedes B Class offers marginally more boot space – 455 L compared to 440 L. That’s a difference of about 15 L.

For maximum load capacity, the Mercedes B Class offers barely more capacity – up to 1,440 L, about 102 L more than the BYD Atto 3.

When it comes to payload, the Mercedes B Class carries markedly more – 550 kg compared to 335 kg. That’s a difference of about 215 kg.

Who wins the race in the data check?

The BYD Atto 3 holds a decisive overall lead 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 £33,400
Atto 3

BYD Atto 3

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 204 - 449 HP
  • Consumption kWh/100km : 16 kWh/100km
  • Electric Range : 420 - 510 km
details

Frequently compared as well

BYD Atto 3
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In the battle of BYD's innovative electric vehicles, the Atto 3 emerges as a more advanced contender compared to the Atto 2. With its sleek design, improved range, and enhanced technology features, the Atto 3 not only offers better performance but also caters to the growing demand for eco-friendly …
Mercedes B Class
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The Mercedes B‑Class is the practical, airy people‑carrier that prioritises space and comfort, while the Mercedes GLA takes the same mechanical smarts and adds SUV looks, higher ride height and a touch more road presence. Pick the B‑Class for family‑friendly sense and efficiency, choose the GLA if …
BYD Atto 3
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BYD Atto 3

The BYD Atto 3 mixes quirky crossover styling with a cleverly packaged interior that feels more premium than its price suggests. Easy to drive, surprisingly practical and loaded with user-friendly tech, it's a strong choice for buyers who want an EV that's fun without being fussy.

details
5F27650C-A457-4BA8-ABBF-B0A381081F50
4CD0D607-8DF0-480E-92A0-FFE2DD0C2A7D
A4BCEC5F-F54A-4C81-8C3B-2C7767DF6D72
E96AFF07-FF39-4455-88FE-E60F4D607FE6
AD877C78-5875-44DA-B1B6-1E99A05AC058

Reviews BYD Atto 3

5 (2 Reviews)
rate

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

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
18C0953_035
18C0947_044

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

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BYD Atto 3
Mercedes B Class

Costs and Consumption
Price
33,400 - 43,700 £
Price
33,100 - 52,500 £
Consumption L/100km
-
Consumption L/100km
2.5 - 6.9 L/100km
Consumption kWh/100km
16 kWh/100km
Consumption kWh/100km
-
Electric Range
420 - 510 km
Electric Range
83 km
Battery Capacity
-
Battery Capacity
12.9 kWh
co2
0 g/km
co2
56 - 156 g/km
Fuel tank capacity
-
Fuel tank capacity
35 L

Dimensions and Body
Body Type
SUV
Body Type
MPV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1,825 kg
Curb weight
1,405 - 1,745 kg
Trunk capacity
440 L
Trunk capacity
405 - 455 L
Length
4,455 mm
Length
4,419 mm
Width
1,875 mm
Width
1,796 mm
Height
1,615 mm
Height
1,562 mm
Max trunk capacity
1,338 L
Max trunk capacity
1,440 L
Payload
335 kg
Payload
505 - 550 kg

Engine and Performance
Engine Type
Electric
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
204 - 449 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
3.9 - 7.3 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
160 km/h
Max Speed
223 km/h
Torque
310 - 560 Nm
Torque
200 - 450 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
150 - 330 kW
Power kW
85 - 175 kW
Engine capacity
-
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,023 - 2,026
Model Year
2,024 - 2,025
CO2 Efficiency Class
A
CO2 Efficiency Class
B, D, E, F
Brand
BYD
Brand
Mercedes-Benz
Is the BYD Atto 3 offered with different drivetrains?

The BYD Atto 3 is offered with Front-Wheel Drive, Rear-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.