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Mazda MX-5 Roadster vs MG MG3 comparison

Compare performance (132 HP vs 194 HP), boot space and price (29,000 £ vs 15,400 £ ) at a glance. Find out which car is the better choice for you – Mazda MX-5 Roadster or MG MG3?

Mazda MX-5 Roadster vs MG MG3: Key differences

Mazda MX-5 Roadster

4.1 (1 Reviews)
rate
  • slightly lighter
details

MG MG3

5 (1 Reviews)
rate
  • considerably cheaper
  • markedly more power
  • clearly more efficient
  • very slightly quicker 0–100 km/h
  • considerably 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.

Here’s where it gets real: The technical differences in detail

MX-5 Roadster

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.

MG MG3 is considerably cheaper – starting at 15,400 £ , while the Mazda MX-5 Roadster costs 29,000 £ . That’s a price difference of around 13,542 £.

Fuel consumption also shows a difference: the MG MG3 uses 4.4 L/100km and is clearly more efficient than the Mazda MX-5 Roadster with 6.2 L/100km. The difference is about 1.8 L/100km.

MG3

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 MG MG3 offers markedly more power – delivering 194 HP compared to 132 HP. That’s roughly 62 HP more horsepower.

When accelerating from 0 to 100 km/h, the MG MG3 is very slightly quicker – completing the sprint in 8 s, while the Mazda MX-5 Roadster takes 8.3 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Mazda MX-5 Roadster delivers marginally more torque with 152 Nm compared to 148 Nm. That’s about 4 Nm more.

MX-5 Roadster

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: MG MG3 offers more seats – 5 vs 2.

In terms of curb weight, Mazda MX-5 Roadster is slightly lighter – 1,078 kg compared to 1,237 kg. The difference is around 159 kg.

Looking at boot space, the MG MG3 offers considerably more boot space – 293 L compared to 130 L. That’s a difference of about 163 L.

When it comes to payload, the MG MG3 carries considerably more – 448 kg compared to 152 kg. That’s a difference of about 296 kg.

Who wins the race in the data check?

The MG MG3 is clearly superior 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 £15,400
MG3

MG MG3

  • Engine Type Petrol, Full Hybrid
  • Transmission Manual, Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 116 - 194 HP
  • Consumption L/100km 4.4 - 6.1 L/100km
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MG MG3
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Mazda MX-5 Roadster
MG MG3

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mazda MX-5 Roadster

The Mazda MX-5 is a featherweight, open-top sports car that turns ordinary roads into a grin-inducing playground thanks to razor-sharp steering and an engaging, tactile gearbox. It won’t swallow the weekly shopping or ski bags, but for anyone after pure driving fun and sun-on-your-face weekends, few cars match its sheer charm and value.

details
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2023_mazda_mx-5_global_still_007_highres
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Reviews Mazda MX-5 Roadster

4.1 (1 Reviews)
rate
Oliel
9 Aug 2026, 14:18:24

Good Car, much fun, very lightweight, can fit loads of grocheries in the trunk, great family 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

MG MG3

The MG3 is a cheeky city hatch that pairs bold, youthful styling with sprightly handling for drivers who want personality on a budget. Its cabin is bright and cleverly packaged, offering sensible space and a fun-to-drive character that turns mundane commutes into something a bit more enjoyable.

details
KV-1-1
Left-Back-30°-1
Front-Row-Space-1
Trunk-3

Reviews MG MG3

5 (1 Reviews)
rate
Giorgio catacchio
20 Sept 2025, 00:08:28

I've owned the MG3 Hybrid for a year — I travel a lot, never a dull moment; comes fully loaded as standard, incredible acceleration, etc.

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Mazda MX-5 Roadster
MG MG3

Costs and Consumption
Price
29,000 - 34,300 £
Price
15,400 - 21,400 £
Consumption L/100km
6.2 L/100km
Consumption L/100km
4.4 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
140 g/km
co2
100 - 137 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Hatchback
Seats
2
Seats
5
Doors
-
Doors
-
Curb weight
1,078 kg
Curb weight
1,237 - 1,285 kg
Trunk capacity
130 L
Trunk capacity
293 L
Length
-
Length
-
Width
1,735 mm
Width
1,797 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
152 kg
Payload
373 - 448 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Petrol, Full Hybrid
Transmission
Manual
Transmission
Manual, Automatic
Transmission Detail
Manual Gearbox
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
Rear-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
132 HP
Power HP
116 - 194 HP
Acceleration 0-100km/h
8.3 s
Acceleration 0-100km/h
8 - 10.8 s
Max Speed
-
Max Speed
-
Torque
152 Nm
Torque
148 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
97 kW
Power kW
85 - 143 kW
Engine capacity
1,496 cm3
Engine capacity
1,490 - 1,495 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
E
CO2 Efficiency Class
E, C
Brand
Mazda
Brand
MG
What drive types are available for the Mazda MX-5 Roadster?

The Mazda MX-5 Roadster is available as Rear-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.