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Lexus UX vs Mazda 3 Sedan comparison

Compare performance (199 HP vs 186 HP), boot space and price (38,700 £ vs 25,000 £ ) at a glance. Find out which car is the better choice for you – Lexus UX or Mazda 3 Sedan?

Lexus UX vs Mazda 3 Sedan: Key differences

Lexus UX

4.5 (5 Reviews)
rate
  • barely more power
  • barely more efficient
  • very slightly quicker 0–100 km/h
details

Mazda 3 Sedan

4.7 (1 Reviews)
rate
  • significantly cheaper
  • only slightly lighter
  • markedly 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.

By Achim Sedelmaier

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

UX

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.

Mazda 3 Sedan is significantly cheaper – starting at 25,000 £ , while the Lexus UX costs 38,700 £ . That’s a price difference of around 13,765 £.

Fuel consumption also shows a difference: the Lexus UX uses 5 L/100km and is barely more efficient than the Mazda 3 Sedan with 5.5 L/100km. The difference is about 0.5 L/100km.

3 Sedan

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 Lexus UX offers barely more power – delivering 199 HP compared to 186 HP. That’s roughly 13 HP more horsepower.

When accelerating from 0 to 100 km/h, the Lexus UX is very slightly quicker – completing the sprint in 7.9 s, while the Mazda 3 Sedan takes 8.1 s. That’s about 0.2 s quicker.

UX

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, Mazda 3 Sedan is only slightly lighter – 1,420 kg compared to 1,495 kg. The difference is around 75 kg.

Looking at boot space, the Mazda 3 Sedan offers markedly more boot space – 450 L compared to 320 L. That’s a difference of about 130 L.

When it comes to payload, the Lexus UX carries clearly more – 615 kg compared to 481 kg. That’s a difference of about 134 kg.

Who wins the race in the data check?

The Mazda 3 Sedan 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 £25,000
3 Sedan

Mazda 3 Sedan

  • Engine Type : Petrol MHEV
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 140 - 186 HP
  • Consumption L/100km : 5.5 - 6.1 L/100km
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Frequently compared as well

Lexus LBX
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Mazda 3 Sedan

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Lexus UX

The Lexus UX is a compact luxury crossover that blends sharp styling with a quiet, comfortable cabin, perfect for urban buyers who want premium feel without shouting about it. It rides with poise, serves up plush materials and thoughtful tech, and—while it won’t satisfy anyone chasing track thrills—it's a smart, stylish choice for everyday driving.

details
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Reviews Lexus UX

4.5 (5 Reviews)
rate
marjollet
10 Feb 2026, 16:56:36

After a Toyota Avensis D4D with a BMW engine, I chose the UX 250h F Sport Design and I'm very satisfied.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Norma
21 Dec 2025, 18:27:57

Lv my UX I live 10 miles outside Belfast do aloy of country driving to reach different places I go t

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

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.

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Reviews Mazda 3 Sedan

4.7 (1 Reviews)
rate

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

Frequently compared as well

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The Kia Niro and the Lexus UX are compact crossovers aimed at buyers who want efficient, city-friendly SUVs but with different priorities—value and practicality versus premium feel. The Niro focuses on practicality and a range of hybrid/electric options, while the UX emphasizes refined materials, …
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The Lexus UX feels like a designer suit on wheels — sharp handling, plush materials and that trademark Lexus calm make it the premium, city-friendly choice if you’re willing to pay for polish. The Toyota Corolla Cross is the sensible sibling: more rear-seat space, a bigger boot, lower running costs …
Lexus UX
Mazda 3 Sedan

Costs and Consumption
Price
38,700 - 54,100 £
Price
25,000 - 34,200 £
Consumption L/100km
5 - 5.6 L/100km
Consumption L/100km
5.5 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
113 - 127 g/km
co2
123 - 135 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,495 - 1,555 kg
Curb weight
1,420 - 1,492 kg
Trunk capacity
320 L
Trunk capacity
450 L
Length
-
Length
-
Width
1,840 mm
Width
1,795 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
555 - 615 kg
Payload
467 - 481 kg

Engine and Performance
Engine Type
Full Hybrid
Engine Type
Petrol MHEV
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
CVT
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
199 HP
Power HP
140 - 186 HP
Acceleration 0-100km/h
7.9 - 8.1 s
Acceleration 0-100km/h
8.1 - 9.8 s
Max Speed
-
Max Speed
-
Torque
-
Torque
238 - 240 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
146 kW
Power kW
103 - 137 kW
Engine capacity
1,987 cm3
Engine capacity
1,998 - 2,488 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
C, D
CO2 Efficiency Class
D
Brand
Lexus
Brand
Mazda
What drivetrain options does the Lexus UX have?

The Lexus UX is available as Front-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.