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BYD Atto 3 vs Mercedes GLB comparison

Compare performance (449 HP vs 354 HP), boot space and price (38,600 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – BYD Atto 3 or Mercedes GLB?

BYD Atto 3 vs Mercedes GLB: Key differences

BYD Atto 3

4.5 (4 Reviews)
rate
  • moderately cheaper
  • visibly more power
  • substantially quicker 0–100 km/h
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • barely more efficient
  • slightly more electric range
  • marginally lighter
  • marginally 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

Atto 3

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.

BYD Atto 3 is moderately cheaper – starting at 38,600 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 4,635 £.

In terms of energy consumption, the Mercedes GLB is barely more efficient: consuming 15.4 kWh/100km compared to 16.4 kWh/100km for the BYD Atto 3. That’s a difference of about 1 kWh/100km.

As for electric range, the Mercedes GLB offers slightly more range – reaching up to 631 km, about 121 km more than the BYD Atto 3.

GLB

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the BYD Atto 3 offers visibly more power – delivering 449 HP compared to 354 HP. That’s roughly 95 HP more horsepower.

When accelerating from 0 to 100 km/h, the BYD Atto 3 is substantially quicker – completing the sprint in 3.9 s, while the Mercedes GLB takes 5.5 s. That’s about 1.6 s quicker.

There’s also a difference in torque: the BYD Atto 3 delivers very slightly more torque with 560 Nm compared to 515 Nm. That’s about 45 Nm more.

Atto 3

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes GLB is marginally lighter – 1,840 kg compared to 1,880 kg. The difference is around 40 kg.

Looking at boot space, the Mercedes GLB offers marginally more boot space – 540 L compared to 490 L. That’s a difference of about 50 L.

When it comes to payload, the BYD Atto 3 carries barely more – 530 kg compared to 505 kg. That’s a difference of about 25 kg.

Who wins the race in the data check?

The BYD Atto 3 is far ahead 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 £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
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BMW iX3
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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 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

4.5 (4 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 GLB

The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.

details
19C0853_001
19C0853_003
19C0853_015
19C0853_069
19C0797_007

Reviews Mercedes GLB

3.6 (4 Reviews)
rate
Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

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

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BYD Atto 3
Mercedes GLB

Costs and Consumption
Price
38,600 - 43,700 £
Price
43,200 - 62,400 £
Consumption L/100km
-
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
16.4 - 17.8 kWh/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
470 - 510 km
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 - 138 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,880 - 1,990 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
490 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,875 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
530 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric, Full Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
313 - 449 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
3.9 - 5.5 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
380 - 560 Nm
Torque
280 - 515 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
230 - 330 kW
Power kW
115 - 260 kW
Engine capacity
-
Engine capacity
1,499 cm3

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A, D, E
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.