Space and practicality
The downside of these stunning coupe-like looks? Well, unfortunately, its practicality, which is the Mazda3’s weak link. While there won’t be any grumbles from those in the front, there will be some from those in the rear. That sloping roofline means headroom is really compromised, with taller adults likely to struggle for room in the back, unlike plenty of rivals. The small rear windows can also make it feel a bit claustrophobic, too, while rear visibility is poor, though all models do get blind spot monitoring.
The boot is also one of the smallest in the mid-size hatchback class – offering 358 litres of room. It’s not much more than you find in plenty of superminis, and lags behind rivals. If you require more boot space, take a look at the saloon version, which offers 444 litres of room, though the narrow opening doesn’t aid practicality.
But in more positive news, the Mazda3 is one of the safest cars in this hatchback class and was awarded a five-star safety rating by Euro NCAP when it was tested in 2019. Its standard safety kit eclipses that of rivals, too – including adaptive cruise control, blind spot monitoring and rear cross traffic alert, which are usually only found on top-spec hatchbacks.
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Engines
At launch in 2019, Mazda offered the 3 with a pair of mild-hybrid petrol engines and a diesel, though the latter has since been discontinued.
Starting with the entry-level petrol option, there is the Skyactiv-G, which uses a 120bhp 2.0-litre petrol engine, which is available with both manual or automatic transmissions, and sends power to the front wheels. While very smooth and refined, the lack of turbocharger makes it feel a bit underpowered, and doesn’t feel as quick as its 10.2-second 0-60mph time suggests.
For that reason the clever 2.0-litre Skyactiv-X petrol is our pick, which utilises both gas and spark compression to deliver its performance. There is also no turbocharger, but thanks to a healthy 178bhp, it can reach 60mph in eight seconds – though again, it needs to be revved hard to get the best from it. This is available with both manual and automatic gearboxes, though all-wheel-drive can be had as an option.
If you want a diesel version, you’ll have to look to scour the used market to find a Skyactiv-D version featuring a 114bhp 1.8-litre diesel engine, which was available with both automatic and manual transmissions.
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Running costsÂ
If you’re wanting the best running costs from the Mazda3, you’ll want to seek out a diesel version, which is the most efficient. With the manual gearbox, Mazda says it will achieve 56.5mpg, with CO2 emissions of 107g/km.
That said, both petrol engines should be affordable to run – the Skyactiv-G and Skyactiv-X models return 45.6mpg and 51.4mpg respectively, along with CO2 emissions of 136g/km and 125g/km for the two engines.
It means that the best efficiency is actually achieved from the far more powerful engine, though for the best efficiency it’s worth avoiding all-wheel-drive versions, which are noticeably less economical. Unless you really need that extra traction, you’re unlikely to ever reap the benefits of spending extra for the system.