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Mercedes GLB vs Tesla Roadster comparison

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

Mercedes GLB vs Tesla Roadster: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • substantially cheaper
  • considerably more trunk space
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Tesla Roadster

  • noticeably more electric range
  • considerably quicker 0–100 km/h
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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:

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.

Roadster

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.

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

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

GLB

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 considerably 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 considerably 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 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 £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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Frequently compared as well

BMW iX3
Mercedes GLB
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Mercedes GLB
Tesla Roadster

Costs and Consumption
View detailed analysis

Dimensions and Body
View detailed analysis

Engine and Performance
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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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

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.

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Mercedes GLB
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Comparing the Mercedes GLB and the Volvo EX40 pairs the boxy, family-friendly GLB — a compact luxury SUV that can even offer an optional third row — against the EX40, Volvo’s compact all-electric crossover focused on efficiency, safety and modern tech. Pick the GLB if you need versatile interior …
Mercedes GLB
Tesla Roadster

Costs and Consumption
Price
43,200 - 62,400 £
Price
184,300 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
-
Electric Range
431 - 631 km
Electric Range
1,000 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
Roadster
Seats
5
Seats
4
Doors
-
Doors
2
Curb weight
1,840 - 2,280 kg
Curb weight
-
Trunk capacity
540 L
Trunk capacity
0 L
Length
-
Length
-
Width
1,861 mm
Width
-
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
-

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
Power HP
156 - 354 HP
Power HP
-
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
2.1 s
Max Speed
-
Max Speed
402 km/h
Torque
280 - 515 Nm
Torque
10,000 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
115 - 260 kW
Power 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
What drive types are available for the Mercedes GLB?

Available configurations include 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.