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Tesla Roadster vs Mercedes GLB comparison

Compare performance ( vs 354 HP), boot space and price (184,300 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Tesla Roadster or Mercedes GLB?

Tesla Roadster vs Mercedes GLB: Key differences

Tesla Roadster

  • noticeably more electric range
  • clearly quicker 0–100 km/h
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Mercedes GLB

3.6 (4 Reviews)
rate
  • substantially cheaper
  • significantly 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

Roadster

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mercedes GLB is substantially cheaper – starting at 43,200 £ , while the Tesla Roadster costs 184,300 £ . That’s a price difference of around 141,088 £.

As for electric range, the Tesla Roadster offers noticeably more range – reaching up to 1,000 km, about 369 km more than the Mercedes GLB.

GLB

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: Mercedes GLB offers more seats – 5 vs 4.

Looking at boot space, the Mercedes GLB offers significantly more boot space – 540 L compared to 0 L. That’s a difference of about 540 L.

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When accelerating from 0 to 100 km/h, the Tesla Roadster is clearly quicker – completing the sprint in 2.1 s, while the Mercedes GLB takes 5.5 s. That’s about 3.4 s quicker.

There’s also a difference in torque: the Tesla Roadster delivers significantly more torque with 10,000 Nm compared to 515 Nm. That’s about 9,485 Nm more.

Who wins the race in the data check?

The Mercedes GLB 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 £43,200
GLB

Mercedes GLB

  • Engine Type Electric, Full Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 156 - 354 HP
  • Consumption L/100km 5.7 - 6.1 L/100km
  • Consumption kWh/100km 15.4 - 15.9 kWh/100km
  • Electric Range 431 - 631 km
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Tesla Roadster
Mercedes GLB

Costs and Consumption
View detailed analysis

Dimensions and Body
View detailed analysis

Engine and Performance
View detailed analysis

Tesla Roadster

The Roadster is a stunning embodiment of open-air driving, blending sleek design with exhilarating performance. With its sporty silhouette and agile handling, it offers an unmatched sense of freedom on the road. Enthusiasts revel in the combination of luxury and raw power, making every journey a memorable adventure.

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Reviews Tesla Roadster

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

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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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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Tesla Roadster
Mercedes GLB

Costs and Consumption
Price
184,300 £
Price
43,200 - 62,400 £
Consumption L/100km
-
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
1,000 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
Roadster
Body Type
SUV
Seats
4
Seats
5
Doors
2
Doors
-
Curb weight
-
Curb weight
1,840 - 2,280 kg
Trunk capacity
0 L
Trunk capacity
540 L
Length
-
Length
-
Width
-
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
-
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
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
-
Power HP
156 - 354 HP
Acceleration 0-100km/h
2.1 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
402 km/h
Max Speed
-
Torque
10,000 Nm
Torque
280 - 515 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
-
Power kW
115 - 260 kW
Engine capacity
-
Engine capacity
1,499 cm3

General
Model Year
2025
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A, D, E
Brand
Tesla
Brand
Mercedes-Benz
Is the Tesla Roadster offered with different drivetrains?

The Tesla Roadster is offered with 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.