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MG MG3 vs SEAT Leon comparison

Compare performance (194 HP vs 272 HP), boot space and price (15,400 £ vs 24,800 £ ) at a glance. Find out which car is the better choice for you – MG MG3 or SEAT Leon?

MG MG3 vs SEAT Leon: Key differences

MG MG3

5 (1 Reviews)
rate
  • considerably cheaper
  • very slightly lighter
details

SEAT Leon

4.4 (2 Reviews)
rate
  • visibly more power
  • substantially more efficient
  • marginally quicker 0–100 km/h
details

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

MG3

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 considerably cheaper – starting at 15,400 £ , while the SEAT Leon costs 24,800 £ . That’s a price difference of around 9,385 £.

Fuel consumption also shows a difference: the SEAT Leon uses 1.2 L/100km and is substantially more efficient than the MG MG3 with 4.4 L/100km. The difference is about 3.2 L/100km.

Leon

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 SEAT Leon offers visibly more power – delivering 272 HP compared to 194 HP. That’s roughly 78 HP more horsepower.

When accelerating from 0 to 100 km/h, the SEAT Leon is marginally quicker – completing the sprint in 7.7 s, while the MG MG3 takes 8 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the SEAT Leon delivers substantially more torque with 360 Nm compared to 148 Nm. That’s about 212 Nm more.

MG3

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 very slightly lighter – 1,237 kg compared to 1,344 kg. The difference is around 107 kg.

When it comes to payload, the SEAT Leon carries somewhat more – 521 kg compared to 448 kg. That’s a difference of about 73 kg.

Who wins the race in the data check?

The SEAT Leon 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 £24,800
Leon

SEAT Leon

  • Engine Type : Petrol, Petrol MHEV, Plugin Hybrid, Diesel
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 116 - 272 HP
  • Consumption L/100km : 1.2 - 5.5 L/100km
  • Electric Range : 133 km
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SEAT Leon

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

SEAT Leon

SEAT Leon pairs sharp, modern styling with a cabin that's sensible and slightly sporty, making it an appealing choice for buyers who want flair without fuss. It drives with eager composure and offers a neat balance of comfort and agility, so you get everyday usability with a wink of fun.

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Small-33980-LeonSEDynamic-MysteryBlue
Small-33989-LeonSEDynamic-MysteryBlue
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Small-35510-SEATLeonkeepsWhatCarAwardinthefamily

Reviews SEAT Leon

4.4 (2 Reviews)
rate
FaBio
4 Jan 2026, 21:30:20

Mechanically the car is fairly well built, apart from the rear axle.
The air conditioning is effective and visibility is good, while the FR setup paired with the 18" wheels, in my view, hurts comfort — getting in and out can be awkward. Once on board, though, the seats are very comfortable. The infotainment is comprehensive, with a generously sized screen and full-link smartphone connectivity; the factory sat-nav does what it can, but obviously Maps is superior in every way.
All in all, a fun/sporty car that also winks at family life thanks to a roomy boot and modest fuel consumption.

How do you mainly use this car? (optional): Long-distance driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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MG MG3
SEAT Leon

Costs and Consumption
Price
15,400 - 21,400 £
Price
24,800 - 36,800 £
Consumption L/100km
4.4 - 6.1 L/100km
Consumption L/100km
1.2 - 5.5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
133 km
Battery Capacity
-
Battery Capacity
-
co2
100 - 137 g/km
co2
28 - 126 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,237 - 1,285 kg
Curb weight
1,344 - 1,657 kg
Trunk capacity
-
Trunk capacity
270 - 380 L
Length
-
Length
-
Width
1,797 mm
Width
1,799 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
373 - 448 kg
Payload
473 - 521 kg

Engine and Performance
Engine Type
Petrol, Full Hybrid
Engine Type
Petrol, Petrol MHEV, Plugin Hybrid, Diesel
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
116 - 194 HP
Power HP
116 - 272 HP
Acceleration 0-100km/h
8 - 10.8 s
Acceleration 0-100km/h
7.7 - 10.5 s
Max Speed
-
Max Speed
-
Torque
148 Nm
Torque
220 - 360 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
85 - 143 kW
Power kW
85 - 200 kW
Engine capacity
1,490 - 1,495 cm3
Engine capacity
1,498 - 1,968 cm3

General
Model Year
2025
Model Year
2,024 - 2,026
CO2 Efficiency Class
E, C
CO2 Efficiency Class
D, B
Brand
MG
Brand
SEAT
What drive types are available for the MG MG3?

The MG MG3 is available as Front-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.