Mazda 3 vs MG MG3

What's the difference?

Given how effortlessly it traverses the mainstream and premium small car classes, the Mazda 3 might be the best value small car on the planet.

With racy styling, sports car handling, classy interior presentation and impressive, intelligent efficiency, there’s plenty to sink your teeth into here.

Poor rear vision, a dark back-seat area and smallish boot aside, it doesn’t have any glaring faults.

In a world overrun with SUVs, props to Mazda for evolving the small car so brilliantly to mask a half-decade of existence. Continuous improvements have made the 2024 G25 Evolve SP Vision an essential small car shortlist proposition, regardless of price.

The MG3 still makes a strong argument for a low-cost, low-fuss option just like the models it now beats on price (Yaris, Mazda2, etc) used to.

While it also falls short in some areas like dynamics when pushed, the improvements to interior tech and comfort mean the MG3 should be considered if you're looking for a city runabout.

However, with the MG3’s price jump, rivals from Japanese and Korean brands are closer in cost than they were for the sub-$20K first-gen MG3, and their ability to handle Australia’s conditions outside the city mean they’ll prove a more useful long-term companion for many.

The MG3 nails its brief as a convincing option for first-car buyers or as a second runabout when there’s another option for long trips. It has taken a big step up from the ‘budget-friendly’ vibe of the original.

How is it that the current Mazda 3 is already five years old? This hatchback is still stunning, the sort of car you look back at when walking away.

The shape is sleek and almost coupe-like, with a shark-like nose, cab-backward-style long bonnet, upswept shoulder line and a fastback silhouette.

More importantly, it’s the way the light dances across the sculptured sides that draw the eyes in. Bereft of clutter, it makes you wish all mainstream manufacturers had the courage to be so daring.

We’ve said it before – the 'BP'-generation Mazda 3 (Axela in Japan) is the brand’s boldest C-segment hatch since the 1993 'BA' 323 (Astina/Lantis/323F).

But there’s a price to pay for such timeless beauty…

Following the new design language pioneered here by the MG5 sedan and MG4 electric hatch, the MG3 looks like it’s trying for a sportier vibe than its predecessor, and maybe even a hint of European flair.

A grinning front grille and pointed set of headlights are followed around the side by a couple of body creases that give the hatchback a sweeping look, an attempt perhaps to seem longer than it is.

It doesn’t look like any of its rivals, unlike the MG5 which is easily mistaken for a small Mercedes CLA at glance.

Here on our Dover White test car, some angles are unflattering (it's giving 'hire car'), though the model’s available Diamond Red or Brighton Blue are fairly distinctive. Yes, some of the colours reference the brand’s UK heritage, despite being built in China.

Inside, the cabin benefits from a fairly tidy layout, with some genuinely thoughtful attempts at making the otherwise budget-focused model feel a little nice. A cross-hatch design through the dash mirrors, the seat stitching and the steering wheel and its buttons are nicely angular.

There is a price to pay for all this quasi-coupe styling flair, and that’s a comparatively snug-feeling interior, though you’d never call it cramped.

Actually, the Mazda 3 is no less spacious than most of its competition in all but one area, with enough room even for 200cm drivers, along with sufficient shoulder width and ceiling height to match.

If you’re really tall, maybe that missing sunroof isn’t such a bad thing, after all.

Sat so low-down on cushy, enveloping front seats that offer plenty of comfort and support, this is the anti-SUV. Maybe Mazda should have called this the MX-3.

Sporty and spot-on, the driving position is a laid-back affair, with an emphasis on better ergonomics, as emphasised by the thoughtful placement of switchgear that’s all within easy reach, ahead of a beautifully flowing and layered dash. Proudly Japanese in flavour, it brings to mind functional minimalism.

Drilling into some of the 3’s finer interior details, the analogue-look digital instrumentation is super-legible, ultra-classy and gorgeously lit at night. As previously mentioned, the dials and surrounding air vents are reminiscent of the later Porsche 944 and 968.

It’s not just all for the sake of aesthetics, either.

Yes, it’s lovely, but the thinned-rim three-spoke steering wheel feels great to grip, with nifty little paddle shifters that are a delight to prod.

Same goes for the physical volume knob and climate-control buttons, sidestepping the need to get distracted and frustrated by virtual sub-menus.

And having a conventional gear lever with old-school Tiptronic-style shifts suits the 3’s athletic vibe.

Plus, forward vision is A-OK, ventilation is faultless, storage is better than you might expect, and the fit and finish is as good if not better than any of this 3’s German premium opponents.

Out back, the split-fold rear backrest is set at a comfortable angle, the cushion is well padded, and you’re provided with USB ports, air vents, and an armrest with two cupholders. More thoughtfulness.

But while knee room is fair, rear headroom isn’t great if you’re tall or wear a beehive, as the falling ceiling line reveals.

Vision out is limited by that rising window line and fat pillars. Getting in and out of the back requires some contortionist moves. And the small windows mean it can be gloomier in the back than a Smiths album.

Finally, at just 295 litres, the 3’s cargo capacity is disappointing. Sure, it eclipses the Corolla hatch’s 217L cubby, but other rivals are far larger back there.

At least the floor is wide and flat and there are 60/40-split backrests for cabin access for longer items.

Note that a space-saver spare wheel lurks underneath. Mazda argues there’s always the closely-related CX-30 if you need (slightly) more space (317L).

Meanwhile, at the other end of the 3…

That tidy design inside helps when it comes to making use of the space, as well as offering some generous storage spaces.

For starters, while the clean layout means the screen looks like the main point of access for much of the car’s function, there’s an all-important shortcut button for the climate control which means you don't waste time navigating to the vent and temperature controls.

The only issue is that while my phone was connected to the system for Android Auto, I had to navigate away from the mirroring screen back to the MG3’s home screen before being able to shortcut to the climate settings.

Demister and volume control buttons are also present, but the screen itself has an easy-to-navigate menu.

The steering wheel controls are similarly straightforward and clearly labelled, while the driver display is tidy and shows important information clearly.

While the steering wheel isn’t telescopically adjustable, it's easy to find a comfortable seating position thanks to the adjustability of the seats. The material on the seats doesn't feel rough or cheap.

Behind that, there is enough space for my 178cm frame in the second row for the most part, but headroom isn’t incredibly generous.

The rear pew is a single unit, rather than a 60/40 split, so the whole backrest folds down if you need to load anything long through the boot. There’s not even an armrest or little ski hatch for long, thin items.

Its 293-litre boot isn’t small, and there’s a space-saver spare tyre in both petrol variants, but the hybrids are stuck with repair kits.

Even though it’s now more expensive with its $23,990 before on-roads price, it’s hard to deny the petrol-only MG3 Excite is a compelling offering when it comes to inexpensive runabouts.

Not only has the price been bumped up, but so has the apparent interior quality and features list.

A new 13.25-inch multimedia touchscreen is paired with a 7.0-inch driver display and both look pretty slick for the price point and operate well. 

Apple CarPlay and Android Auto are both available, but are wired only and can’t be accessed with a Bluetooth connection, while a six-speaker sound system handles entertainment duties.

In terms of seating and material, the Excite gets cloth pews with some contrast stitching.

On the outside, folding mirrors and a set of 16-inch alloy wheels join the new MG3’s design, while this base model Excite is left with halogen headlights like it’s 2015. 

The Essence scores a set of LED units and is otherwise distinguishable by its sunroof, though it shares the same wheels as our base car, so it won’t feel like you’re missing out on heaps.

When you think about it, shoehorning a big torquey engine in a light and agile small car is a recipe for fun. Ford did just that with the Escort RS2000 in the 1970s… and Mazda’s now an expert at it, too.

The engine in question is the G25, a 2.5-litre four-cylinder naturally aspirated twin-cam petrol engine, delivering 139kW of power at 6000rpm and 252Nm of torque at 4000rpm.

As this Evolve SP Vision hatch tips the scales at 1415kg, it makes for a healthy, and consequently very lively, power-to-weight ratio of over 98kW/tonne.

That’s if you decide to use all the available revs, which the six-speed torque-converter auto makes great use of.

Driving the front wheels, it offers a 'Sport' mode to extend the revs even more, which is keeping in line with this Mazda’s sporty character.

Less so is the company’s decision to ditch the old multi-link independent rear suspension system a few years back for a more prosaic torsion beam arrangement. We’ll get to how that affects ride and handling in a moment.

On paper, the MG3’s 1.5-litre four-cylinder engine is fairly underwhelming with its 81kW (peaking at 6000rpm) and 142Nm (at 4500rpm).

But these figures, including the engine size and even peak RPMs are not far off the likes of the Mazda2, which is a fairly peppy and fun car despite its lack of grunt.

Keen drivers will, however, be disappointed to hear the MG3 drives the front wheels via a continuously variable transmission (CVT) rather than a traditional torque-converter auto, taking much of the pep out of its power unit.

You can expect to hit 100km/h in a bit over 10 seconds.

Mazda claims the G25 averages 6.6L/100km on the combined cycle… for a carbon-dioxide emissions rating of 154g/km. On a 51L tank, that gives a potential distance of over 940km!

Driven good and hard in our hands, we managed 7.5L/100km, which isn’t bad given the speed and conditions it was subjected to.

Plus, the Mazda’s happy on 91 RON 'standard' unleaded petrol.

MG claims the MG3 uses just 6.0 litres of 91 RON petrol every 100km on the combined fuel cycle, so with its 45-litre tank you can hypothetically bank on a 750km range.

Of course, that might be achievable in lab conditions, but on test we found the trip computer’s estimates looking closer to 500km on a tank for the kind of urban driving it was undertaking with us.

On a dynamic test drive route, the trip computer settled at a displayed consumption figure of 7.7L/100km, but stop-start driving was not great for efficiency, as you'd expect.

Ask yourself. What do you want from a new small car?

Since the first Familia of the early 1960s, Mazda’s been at it constantly, through the 1300 and 323 eras and into the modern age of the 3.

The Hiroshima brand knows its stuff. Space, practicality, comfort, ease, reliability and affordability. But a small car has to offer more, specifically in the way it makes the owner feel.

That’s why, while the Focuses, Lancers, Astras and Pulsars are gone, the 3’s still here. And it isn’t just the lush visuals inside and out that are, well, sensory-rich.

As older Alfa Romeo owners know, there’s something special about an engine that sounds alive, and the moment you push the 3’s starter, it purrs into life. That’s the first clue.

Slot the refreshingly old-school lever into Drive, and the G25 leaps into action, and, if you need it to, will keep pulling forward strongly, engine buzzing, like it’s on a mission.

That describes the torquey urge of this big 2.5L four, paired perfectly with the sensibly-geared auto.

We miss Mazda’s magnificent manual immensely, but the 3’s instant response reflects its favourable circa-100kW/tonne power-to-weight ratio.

And, as we’ve harped on in the past, the twin-cam unit’s extra oomph beyond 4000rpm delivers muscular high-speed responses akin to a good turbo – or a great old-school Alfa. You can keep your laggy dual-clutch transmissions, Europe.

Now, sweet, smooth and speedy performance is one thing, but having the chassis tuned with precise and fluid steering for tactile handling, and confident roadholding, backed by nuanced driver-assist and traction controls, are another.

There is a consistent and unifying control to the 3’s linear and forgiving dynamics, reminiscent of past masters like the Focus (and today’s brilliant Peugeot 308) that makes it a joy to drive enthusiastically through fast corners, with the knowledge that it won’t suddenly snap-oversteer and bite an unalert driver back.

For a Mazda, the ride is quiet enough, but there is still some droning transmitted through the cabin, via the Bridgestone Turanza (215/45) tyres, on coarse-chip bitumen surfaces.

And while suspension comfort is pretty impressive for the most part, larger bumps reveal the torsion beam’s limitations, as the car can occasionally thud over them in a way that we remember the multi-link rear end wouldn’t.

Anyway, what we’re saying is that, overall, the 3 Evolve SP Vision is an immersive and interactive driving experience that is right up there with the best of them.

Brawny performance, exquisite agility and a refinement that, collectively, have eluded every small Mazda in living memory until this generation’s 2019 debut. This 3’s right on the money. Still.

The higher quality look and feel of the new MG3 carries through to its day-to-day driving. Some of the car’s Chinese compatriots seem to fall down when it comes to the on-road part, which for some is the most important part of a car.

But for a small city car the MG3 is very user friendly, with light and direct steering, good visibility, and just enough power and torque to not feel like everyone’s getting the green light a couple of seconds earlier than you.

It’s comfortable at urban speeds when it comes to the suspension, and doesn't get rattled too much in the front end by tram tracks or other road imperfections.

In narrow streets, three-point turns aren’t a hassle and the car’s size means it’s easy to reverse parallel park, although the reversing camera takes a second to appear when using phone mirroring.

On the highway, however, and when it comes to high-speed cornering, the MG3 can feel a little uneasy.

The road noise becomes more and more obvious. Driving on well-maintained metro freeways at around 80km/h or above produces unpleasant noise, and a during a particularly breezy week the car felt susceptible to swaying in high wind.

Its power delivery starts to feel lacking out of town, too, and taking corners on fast back roads means plenty of slowing down to avoid the front-end sliding or the feeling of the MG3 leaning unsettlingly around corners.

If you’re considering the MG3 but you need to head out of town regularly, take a proper long test drive before opening your wallet.

But if you just need it as an urban runabout, the MG3 does a fine job.

ANCAP hasn’t tested the MG3 yet, so there’s no crash safety information available. It’s worth noting ANCAP gave the MG5 a zero star score for its lack of active safety equipment, but the MG3 comes with more under its belt than its sedan stablemate.

Six airbags, two front, two side and two curtain, are joined by adaptive cruise control, blind spot detection, rear cross-traffic assist, forward collision warning, lane departure warning, lane keeping assist and speed limit assist.

None of these systems were intrusive on test, though lane-keep assist feels like it could do with some more fine tuning.

Mazda offers a five-year/unlimited kilometre warranty, with five-years roadside assistance… and that’s nothing special nowadays.

Service intervals are at 12 months or every 15,000km.

A fixed-price service scheme is available, averaging out to $434 annually over the first five years. Mazda shows pricing right up to 16 years and 240,000km on its website.

MG has a 10-year/250,000km warranty which is unmatched in the small-car market.

Servicing is scheduled at every 10,000km or 12-month intervals, with the first seven services averaging out at a fairly hefty $360 - the cheapest being $234 and the priciest $536.