MAZDA CX-30 e-Skyactiv G140 petrol FWD automatic

Sustainability rating
2025
44%

MAZDA CX-30 e-Skyactiv G140 petrol FWD automatic

Sustainability rating
2025
44%

Our verdict

The tested Mazda CX-30 is equipped with a petrol engine and a low-level hybridisation. The vehicle scores well in the Clean Air part of the assessment, but loses points for Energy Efficiency and is significantly challenged within the Greenhouse Gas Index.

  • The CX-30 has robust emissions control in warm conditions but performs weaker in cold starts and Highway Tests due to high particle emissions; tyre abrasion is low, but brake abrasion reduction is minimal.
  • Fuel consumption is relatively high across all tests, limiting energy efficiency despite life cycle benefits from low vehicle mass and no battery production.
  • High petrol consumption results in elevated life cycle greenhouse gas emissions, with CO2 from fuel combustion outweighing production-phase advantages by far.
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7.0 10 Clean Air

The exhaust aftertreatment is robust and adequately efficient under warm conditions but the emissions control struggles in the Cold Winter Test start at -7°C. Here, the score for NMHC is 0. Both in this cold start test and in the Highway Drive, the score for particle emissions is 0. In general, the relatively high particle emissions cap the results in all tests. The car scores very well for tyre abrasion but only has very limited potential to reduce its brake abrasion emissions.

Exhaust emissions

adequate
6.6 10

adequate

6.010
NMHC NOX NH3 CO PN PM Score
Legal test (WLTP) 5.58
Warm weather 7.510
Highway 6.110
Winter cold start 3.610
Winter warm start 7.410

adequate

7.210
NMHC NOX NH3 CO PN PM Score
Real-world mixed drive 6.410
Short city trip 7.310
Congestion 2.02
  • good
  • adequate
  • marginal
  • weak
  • poor
  • n.a.
Non-exhaust emissions

marginal
5.9 10

adequate

5.36
Result Score
Influence of mass 2.33
Wheel alignment 1.01
Accelerator response 2.02

weak

1.86
Result Score
Brake dust mitigation 0.04
Brake dust containment 0.06
Recuperative braking - warm test 1.86
  • good
  • adequate
  • marginal
  • weak
  • poor
  • n.a.
Additional Life Cycle Assessment information

good
9.4 10
Pollutants
*Exhaust emissions are not contributing to the score in Additional Life Cycle Assessment information because they are scored in the Exhaust emissions section above.
4.4 10 Energy Efficiency

The CX-30 fails to impress with low consumption values, as the figures are rather high in all tests, reaching 8.6 l/100 km in the Highway Test. The standard real-world mixed trip recorded 6.1 l/100 km. In terms of life cycle assessment, the total primary energy demand benefits from the low mass and absence of a heavy battery, the production of which would increase the need for energy. Nevertheless, the amounts of fuel needed for a conventional combustion engine limit the achievable score in this section.

Energy demand

weak
4.2 10

weak

1.610
Legal test (WLTP)
6.6 l/100 km
Warm weather
6.3 l/100 km
Highway
8.6 l/100 km
Winter cold start
7.9 l/100 km
Winter warm start
6.6 l/100 km

good

10.010
Total LCA energy consumption
*Direct propulsion energy share is not shown, it is included in ‘Fuel/energy supply’
Energy source share in total LCA consumption
Rolling resistance

adequate
8.3 10
  • good
  • adequate
  • marginal
  • weak
  • poor
  • n.a.
1.8 10 Greenhouse Gases

The relatively high petrol consumption of the CX-30 leads to high greenhouse gas emissions and the advantages of the lower impact of the production of a conventional vehicle cannot compensate for the direct exhaust greenhouse gas emissions, of which CO2 being the most significant.

Exhaust GHG emissions

weak
0.4 10
In laboratory
Legal test (WLTP)
148.2 g CO₂-eq./km
Warm weather
143.5 g CO₂-eq./km
Highway
195.1 g CO₂-eq./km
Winter cold start
179.4 g CO₂-eq./km
Winter warm start
149.2 g CO₂-eq./km
Additional Life Cycle Assessment information

adequate
7.5 10
Total LCA GHG Emissions
*The scoring does not consider the direct exhaust GHG emissions at the tailpipe, because they are scored separately in ‘Exhaust GHG emissions’ above.

Vehicle Life Cycle Average Emissions 64 (+/-)
(Best 57 | Worst 73)

  • good
  • adequate
  • marginal
  • weak
  • poor
  • n.a.

Specifications

  • Vehicle class Small SUV
  • Power/Torque 103 kW/238 Nm
  • Engine size 2,488 cc
  • Declared consumption 6.6 l/100 km
  • Declared CO2 148 g/km
  • Mass 1,462 kg
  • Heating concept Waste heat
  • Tyres 215/55 R18
  • Emissions class Euro 6 EA
  • Tested car JMZDM6WM90051XXXX
  • Publication date 09 2025
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Disclaimer

Driving Experience

Consumption & Range

adequate
Estimated actual consumption What consumption can be expected in real world conditions?

adequate
Conditions Urban Rural Highway Mixed
Warm weather
9.0
5.9
6.8
7.7
l/100 km
Cold winter
10.6
6.6
7.7
8.8
l/100 km
Accuracy of display Is the consumption figure on the display correct?

good
  • good
  • adequate
  • poor
  • n.a.
Cold Winter Performance

not applicable
Charging Capability

not applicable

Green NCAP comments

The Driving Experience evaluation of conventional vehicles focuses only on the performance in section 'Consumption and Range'. Although at the upper end of the evaluation range, the Mazda CX-30's estimated real-world consumption figures are still largely seen as adequate in most conditions – warm weather and cold winter, urban, rural, highway and mixed driving scenarios. The consumption readings on the board computer display are accurate.

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