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In-depth reviews

Mazda CX-3 review - MPG, CO2 and Running Costs

Diesel CX-3 delivers decent economy, but it’s also worth considering the petrol version, which isn’t that thirsty

The claimed economy of the 1.8 SkyActiv-D diesel is a lot poorer than the old 1.5 motor, but that's because of the new WLTP fuel economy test procedure. Mazda claimes 54.3mpg combined, but you're more likely to achieve that figure in the real world when compared to the 70.6mpg claims of the old NEDC-tested 1.5. Emissions are 114g/km, which is 9g/km more than the 1.5, so company car costs won't be too drastically different.

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Mazda clearly sees the diesel fading in desirability, because while it used to be offered with an auto box and four-wheel drive, neither of these options is now available.

Best 4x4s and SUVs on the market

The 2.0-litre petrol model is well worth considering. It’s thirstier, but with Mazda claiming an official figure of 42.87mpg for the lower powered model and 38.2mpg for the more powerful 4WD model, these figures are more easily achieved than ever before. Adding an auto to the 118bhp model sees economy down to 39.2mpg, while the AWD auto has a claimed return of 34.9mpg. 2WD cars have a 48-litre fuel tank, but the more powerful petrol has a 44-litre fuel tank, as it has to make room for the 4WD running gear.

Emissions for the petrol models start at 140g/km for the 2WD auto, then 141g/km for the 2WD manual, 152g/k for the AWD auto, and 160g/km for the AWD manual.

Insurance groups

The Mazda CX-3 will never be an expensive car to insure. Look at the group ratings, and you'll see that SE models are in Group 18, but higher-spec SE-L cars start in Group 13. That's because SE-L cars ad above inclue Mazda's city braking system, which means they will be less likely to be involved in a front-end collision. ANd because it also has this system, the top spec Sport Nav has the same Group 18 rating as the SE version. 

Depreciation

Our experts estimate that the CX-3 will hold on to its price reasonably well, although it has weaker figures than models such as the Audi Q2 and Mercedes GLA. It’s predicted to retain 45-50 per cent of its original value after three years.

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Which Is Best

Cheapest

  • Name
    2.0 SE Nav + 5dr
  • Gearbox type
    Manual
  • Price
    £19,130

Most Economical

  • Name
    2.0 SE Nav + 5dr
  • Gearbox type
    Manual
  • Price
    £19,130

Fastest

  • Name
    2.0 150 Sport Nav + 5dr AWD
  • Gearbox type
    Manual
  • Price
    £23,610
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