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Mercedes GLB vs Tesla Model 3 comparison

Compare performance (354 HP vs 460 HP), boot space and price (43,200 £ vs 31,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Tesla Model 3?

Mercedes GLB vs Tesla Model 3: Key differences

Mercedes GLB

3.6 (4 Reviews)
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Tesla Model 3

4.3 (8 Reviews)
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  • noticeably cheaper
  • visibly more power
  • moderately more efficient
  • moderately more electric range
  • clearly quicker 0–100 km/h
  • only slightly lighter
  • very slightly more trunk space
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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

GLB

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.

Tesla Model 3 is noticeably cheaper – starting at 31,700 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 11,492 £.

In terms of energy consumption, the Tesla Model 3 is moderately more efficient: consuming 13 kWh/100km compared to 15.4 kWh/100km for the Mercedes GLB. That’s a difference of about 2.4 kWh/100km.

As for electric range, the Tesla Model 3 offers moderately more range – reaching up to 750 km, about 119 km more than the Mercedes GLB.

Model 3

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 Tesla Model 3 offers visibly more power – delivering 460 HP compared to 354 HP. That’s roughly 106 HP more horsepower.

When accelerating from 0 to 100 km/h, the Tesla Model 3 is clearly quicker – completing the sprint in 3.1 s, while the Mercedes GLB takes 5.5 s. That’s about 2.4 s quicker.

There’s also a difference in torque: the Tesla Model 3 delivers markedly more torque with 660 Nm compared to 515 Nm. That’s about 145 Nm more.

GLB

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, Tesla Model 3 is only slightly lighter – 1,822 kg compared to 1,840 kg. The difference is around 18 kg.

Looking at boot space, the Tesla Model 3 offers very slightly more boot space – 594 L compared to 540 L. That’s a difference of about 54 L.

When it comes to payload, the Mercedes GLB carries visibly more – 505 kg compared to 333 kg. That’s a difference of about 172 kg.

Who wins the race in the data check?

The Tesla Model 3 is decisively 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 £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 - 16.5 kWh/100km
  • Electric Range 534 - 750 km
Mercedes GLB
Tesla Model 3

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

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.

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Tesla Model 3

The Tesla Model 3 is a compact electric sedan that pairs brisk, responsive driving with a sleek, minimalist cabin and intuitive, software-led features. It makes a practical, modern choice for daily commutes and long-term ownership while emphasizing simplicity and advanced driver assistance.

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Mercedes GLB
Tesla Model 3

Costs and Consumption

Price
43,200 - 62,400 £
Price
31,700 - 50,100 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
13 - 16.5 kWh/100km
Electric Range
431 - 631 km
Electric Range
534 - 750 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,840 - 2,280 kg
Curb weight
1,822 - 1,929 kg
Trunk capacity
540 L
Trunk capacity
594 L
Length
-
Length
-
Width
1,861 mm
Width
1,850 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
302 - 333 kg

Engine and Performance

Engine Type
Electric, Full Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
156 - 354 HP
Power HP
283 - 460 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
3.1 - 6.2 s
Max Speed
-
Max Speed
-
Torque
280 - 515 Nm
Torque
420 - 660 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
115 - 260 kW
Power kW
208 - 338 kW
Engine capacity
1,499 cm3
Engine capacity
-

General

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