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BYD Atto 3 vs Mercedes B Class comparison

Compare performance (449 HP vs 238 HP), boot space and price (38,600 £ 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

4.7 (3 Reviews)
rate
  • clearly more power
  • significantly quicker 0–100 km/h
  • marginally more trunk space
details

Mercedes B Class

4.9 (5 Reviews)
rate
  • slightly cheaper
  • noticeably lighter
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

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 slightly cheaper – starting at 33,100 £ , while the BYD Atto 3 costs 38,600 £ . That’s a price difference of around 5,433 £.

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.

There’s also a difference in torque: the BYD Atto 3 delivers noticeably more torque with 560 Nm compared to 400 Nm. That’s about 160 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 1,880 kg. The difference is around 475 kg.

Looking at boot space, the BYD Atto 3 offers marginally more boot space – 490 L compared to 455 L. That’s a difference of about 35 L.

When it comes to payload, the Mercedes B Class carries only slightly more – 550 kg compared to 530 kg. That’s a difference of about 20 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 £38,600
Atto 3

BYD Atto 3

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 313 - 449 HP
  • Consumption kWh/100km 16.4 - 17.8 kWh/100km
  • Electric Range 470 - 510 km
details

Frequently compared as well

BYD Atto 3
BYD Atto 2
VS
Choosing between the BYD Atto 3 and BYD Atto 2 comes down to whether you need more range, space and performance or a smaller, more affordable city EV. The Atto 3 delivers stronger power, longer driving range and more interior room, while the Atto 2 focuses on compact dimensions, efficiency and …
Mercedes B Class
Mercedes GLA
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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 …
BYD Atto 3
Mercedes B Class

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 is an electric crossover that blends a distinctive, modern design with a comfortable, well-equipped cabin suited to everyday family use. It offers a relaxed, smooth driving feel and practical running costs, making it a sensible choice if you want an uncomplicated, value-focused EV.

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

4.7 (3 Reviews)
rate
BERNARD
17 Apr 2026, 12:36:55

It seems to better meet my expectations when it comes to fuel economy and overall efficiency.

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

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

Frequently compared as well

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VS
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 …
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The BYD Atto 3 and the MG MG5 EV take different approaches to electric motoring: the Atto 3 is a compact crossover that emphasizes tech, comfort and a modern cabin, while the MG MG5 EV is a practical electric estate focused on space and value. This comparison will help you choose between a stylish, …
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The BYD Atto 3 and Ford Explorer EV represent two different takes on the electric SUV — the Atto 3 is a compact, value-packed package while the Explorer EV aims at larger families with more range and performance. I’ll walk you through their real-world range, practicality, driving character and …
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Skoda Elroq
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Toyota C-HR+
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BMW 2 Series Active Tourer
Mercedes B Class
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The BMW 2 Series Active Tourer and the Mercedes B‑Class are the two leading compact MPVs for buyers who need practical space without the bulk of an SUV. The 2 Series Active Tourer leans toward a driver-focused, sharper feel, while the B‑Class prioritizes passenger comfort, flexible packaging and a …
BYD Atto 3
Mercedes B Class

Costs and Consumption
Price
38,600 - 43,700 £
Price
33,100 - 52,500 £
Consumption L/100km
-
Consumption L/100km
5.1 - 6.9 L/100km
Consumption kWh/100km
16.4 - 17.8 kWh/100km
Consumption kWh/100km
-
Electric Range
470 - 510 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
133 - 156 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
MPV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,880 - 1,990 kg
Curb weight
1,405 - 1,565 kg
Trunk capacity
490 L
Trunk capacity
445 - 455 L
Length
-
Length
-
Width
1,875 mm
Width
1,796 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
530 kg
Payload
515 - 550 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
313 - 449 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
3.9 - 5.5 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
-
Max Speed
-
Torque
380 - 560 Nm
Torque
200 - 400 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
230 - 330 kW
Power kW
85 - 175 kW
Engine capacity
-
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2026
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
D, E, F
Brand
BYD
Brand
Mercedes-Benz
Is the BYD Atto 3 offered with different drivetrains?

The BYD Atto 3 is offered with 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.