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Mazda 3 Sedan vs MG MG3 comparison

Compare performance (186 HP vs 194 HP), boot space and price (25,000 £ vs 15,400 £ ) at a glance. Find out which car is the better choice for you – Mazda 3 Sedan or MG MG3?

Mazda 3 Sedan vs MG MG3: Key differences

Mazda 3 Sedan

4.7 (1 Reviews)
rate

MG MG3

5 (1 Reviews)
rate
  • significantly cheaper
  • only slightly more power
  • visibly more efficient
  • marginally quicker 0–100 km/h
  • slightly lighter

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

3 Sedan

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

MG MG3 is significantly cheaper – starting at 15,400 £ , while the Mazda 3 Sedan costs 25,000 £ . That’s a price difference of around 9,557 £.

Fuel consumption also shows a difference: the MG MG3 uses 4.4 L/100km and is visibly more efficient than the Mazda 3 Sedan with 5.5 L/100km. The difference is about 1.1 L/100km.

MG3

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 MG MG3 offers only slightly more power – delivering 194 HP compared to 186 HP. That’s roughly 8 HP more horsepower.

When accelerating from 0 to 100 km/h, the MG MG3 is marginally quicker – completing the sprint in 8 s, while the Mazda 3 Sedan takes 8.1 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Mazda 3 Sedan delivers noticeably more torque with 240 Nm compared to 148 Nm. That’s about 92 Nm more.

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, MG MG3 is slightly lighter – 1,237 kg compared to 1,420 kg. The difference is around 183 kg.

When it comes to payload, the Mazda 3 Sedan carries marginally more – 481 kg compared to 448 kg. That’s a difference of about 33 kg.

Who wins the race in the data check?

The MG MG3 leads convincingly 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 : Manuel, Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 116 - 194 HP
  • Consumption L/100km : 4.4 - 6.1 L/100km
Mazda 3 Sedan
MG MG3

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Mazda 3 Sedan

The Mazda 3 Sedan dresses like a compact premium car, with sculpted lines and an interior that punches well above its class. It rewards drivers with eager handling and a composed, comfortable ride that turns routine runs into something a bit more enjoyable — proof that style and substance can share the same key.

details

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
Mazda 3 Sedan
MG MG3

Costs and Consumption

Price
25,000 - 34,200 £
Price
15,400 - 21,400 £
Consumption L/100km
5.5 - 6.1 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
123 - 135 g/km
co2
100 - 137 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
Sedan
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,420 - 1,492 kg
Curb weight
1,237 - 1,285 kg
Trunk capacity
450 L
Trunk capacity
-
Length
-
Length
-
Width
1,795 mm
Width
1,797 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
467 - 481 kg
Payload
373 - 448 kg

Engine and Performance

Engine Type
Petrol MHEV
Engine Type
Petrol, Full Hybrid
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
140 - 186 HP
Power HP
116 - 194 HP
Acceleration 0-100km/h
8.1 - 9.8 s
Acceleration 0-100km/h
8 - 10.8 s
Max Speed
-
Max Speed
-
Torque
238 - 240 Nm
Torque
148 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
103 - 137 kW
Power kW
85 - 143 kW
Engine capacity
1,998 - 2,488 cm3
Engine capacity
1,490 - 1,495 cm3

General

Model Year
2,025
Model Year
2,025
CO2 Efficiency Class
D
CO2 Efficiency Class
E, C
Brand
Mazda
Brand
MG
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.