Mazda CX-3 vs MG ZS

What's the difference?

It’s easy to see why the Mazda CX-3 remains such a favourite with small SUV buyers. The Evolve grade tested is dynamically capable, space efficient and well equipped for the money. That said, although I don’t like being ageist, as it starts to creep up on a decade on sale, the market leader is giving ground to the competition in key areas including design, fuel efficiency and refinement. It’s time for a new-generation model, but in the age of electrification, will there be one? In the meantime, this evergreen favourite remains a solid urban SUV option.

The MG ZS Essence with the 1.5-litre petrol engine has many strengths - price and value for money, practicality and space, good looks… and the only area where it really struggles to match its rivals is its underpowered engine. 

The good news is the Essence also comes with a turbo engine and while this isn’t a race car by any means, turbocharging is a way to add the oomph needed in a car this size. 

Stepping up to the MG ZS Essence Turbo costs an extra $2000, but if you can make the budget stretch you’ll have the complete package of value, looks, practicality, safety and much better performance for more enjoyable driving.

You’re not going to mistake the current CX-3 for anything other than a Mazda, which speaks to the consistency of the brand’s design approach.

Tightly wrapped and neatly detailed the CX-3's exterior has aged well, and thanks to cosmetic tweaks over time it’s still looking clean and contemporary. 

The step up from 16-inch alloys on the lower Sport and Pure grades to 18-inch rims on this Evolve also lifts the look to a more mature, premium level.  

The interior is a simple, fuss-free environment, but in a small-SUV world moving rapidly towards slick integrated screens for multimedia and instrumentation, the CX-3 is showing its age.

The 8.0-inch media display stands proud in the centre of the dash, almost like an afterthought, and the instrument cluster, while okay from an ergonomic point of view, is dated by an analogue tachometer in the centre and LCD-style read-outs either side.

And although it’s always a subjective call, I’m guessing the Evolve’s white and tan interior trim combination won’t be to everyone’s liking, from an aesthetic or practicality point-of-view.

That said, the interior surfaces across the dash, doors and centre console flow into one another nicely, and brushed metal look highlights around key controls and vents enhance the quality feel.

Speaking of which, physical dials and knobs for adjustment of the ventilation system and audio volume is welcome. Maybe old-school is the best school?

However… the multimedia screen can only be accessed by a rotary dial in the front centre console once the car is mobile (it works as a touchscreen when you’re stationary).

Keenly aware there are various opinions on this set-up when it comes to safety. Touchscreens, by definition, take your eyes off the road ahead, so on one hand it makes sense to transfer control to the rotary dial.

But when you’re using a sequential app like Spotify, it can take a hell of a lot of twirls of that controller to get to where you want to go.

Soon you’re grinding your teeth in frustration which upsets concentration and your eyes are well-and-truly off the road, anyway. 

For what it’s worth, I’d prefer the relative ease of a quick press on the screen rather than having to go ‘around the horn’ to hit your favourite track or podcast.

The ZS's good looks is another strength.

The new-gen ZS arrived in Australia late in 2024 and this petrol version landed in February 2025. The styling looks more expensive and premium than its price tag would suggest. The sleek nose, the refined tail-lights, a pleasing profile all make for a good looking small SUV.

There are many interesting elements in the design - the grille and its aggressively looking flanking 'air intakes', the crease through the door panels, the little fin that meets the tail-light.

Squint and it looks like a mini Ford Territory. Sort of…

The cabin of the ZS Essence is equally refined with a modern design and soft touchpoints throughout. It’s a minimalist and spacious place free from button clutter.

The ZS is 4430mm long, 1818mm wide and 1635mm high. Ground clearance is 161mm, in case you’ve been lying in bed wondering.

At just under 4.3m long, less than 1.8m wide and a little over 1.5m tall the CX-3’s footprint is squarely city-sized, and no surprise it shares the Mazda2’s 2570mm wheelbase because it’s underpinned by the same platform as the small hatch.

But there’s more than enough breathing room up front and storage options are creative.

Rather than the ubiquitous single storage box between the front seats the CX-3 offers up an adjustable multi-compartment arrangement, with cupholders and bottle retainers ready to flick into position in multiple locations. 

It’s still covered with a padded lid which doubles as an armrest, and there’s also a generous glove box and bins in the doors with space for large bottles, even an overhead drop-down glasses holder.

Move to the back and there’s a surprising amount of head, leg and shoulder room for an SUV of this size. Sure, it’s no limo, but sitting behind the driver’s seat set to my 183cm position, I was pretty comfortable.

Best for two full-size adults in the rear, although a third can squeeze in for short, relatively uncomfortable journeys. Three up to mid-teenage kids will be fine.  

Rear storage includes bottle shaped cavities in the doors, a map pocket on the back of the front passenger seat only (a weird Mazda habit) and dual pop-out cupholders in the fold-down centre armrest.

No adjustable ventilation outlets in the rear, but in a car this compact, their absence isn’t as big an issue as it might be elsewhere.

For power and connectivity, there are two USB-A sockets in the front (one media, one power-only) as well an SD card slot, an ‘aux in’ jack and a 12V outlet. No power options in the rear, which won’t play well with the kids.

With the back seat upright, boot capacity is an okay 264 litres. Enough to accommodate either the largest 124L or the smaller 95L and 36L suitcases from out three-piece set. But not all of them together.

With a bit of not so gentle persuasion, the large CarsGuide pram just squeaked in, but lower the 60/40 split-folding rear backrest and available space expands to 1174L.

Tie-down anchors to help secure loose loads is a plus and a speed-limited space-saver spare sits under the boot floor.

And if you need to hook up a small boat or other lightweight trailer, the CX-3 Evolve is rated to 1200kg (braked) and 640kg (unbraked).

Practicality is a big strength, too, with a proximity key that’ll unlock the car when you touch the door handle, and a cabin with good legroom and headroom even for me at 189cm tall.

There's also a wonderfully simple charging pad for your phone - it's a large area on the centre console which works well in terms of connection but also in terms of wasy access. Many rivals will hide phone chargers away is small crevices that make them hard to extract or even pop in.

You'll find four USB ports, too plus a 12V charger, too.

Clever storage like a shelf built into the dash for loose objects, four cupholders and big door pockets are also on hand.

The boot is also a decent size for a small SUV at 443 litres which is bigger than many rivals, including the Subaru Crosstrek.

The MG ZS’s biggest strength is its affordability and the petrol variant in the Essence grade we tested is a relative bargain at $29,990, drive-away. The entry-grade Excite is even cheaper at $26,990, drive-away.

The Essence offers more standard equipment though and is worth the extra three thousand if you can afford it. Coming standard are LED headlights, 17-inch alloys wheels, silver roof rails, a panoramic sunroof, proximity unlocking, push button start, a 12.3-inch media screen, sat nav, digital radio, six-speaker audio, heated front seats and a leather steering wheel.

That’s good value, and we can testify the LED headlights are excellent for a night-time country road, the proximity unlocking is hard to live without and the heated seats do get very warm.

But the stereo’s sound is 'meh' and the shade on the panoramic roof could be thicker to block out the intense Aussie sun.

Also the seat upholstery is vinyl and while it is easy to clean and looks great, it doesn’t have the nicest feel to it. Still, the car is $29,990 and is better value than the Kia Seltos and a few other rivals.

The CX-3 is powered by a 2.0-litre, four-cylinder petrol engine sending drive to the front wheels via a six-speed auto transmission.

The all-alloy unit features direct-injection and variable valve timing to produce 110kW at 6000rpm and 195Nm at 2800rpm.

Okay, we've listed a lot of strengths for the MG ZS but the engine isn’t one of them. The 1.5-litre four-cylinder petrol engine makes 81kW and 140Nm.

Really, power needs to be at least 100kW and torque closer to 200Nm in something weighing 1330kg otherwise acceleration is going to feel woeful - which it is.

Seriously, the first time I tried to overtake I looked down to see if the handbrake was still on.

Not helping performance is a CVT (Continuously Variable Transmission) which, while good for fuel economy, seems to have trouble getting power to the road effectively.

Mazda’s official fuel economy number for the combined (ADR 81/02 - urban, extra-urban) cycle is 6.3L/100km, the 2.0-litre four-cylinder emitting 143g/km of CO2 in the process.

That’s an impressively small emissions figure for a 2.0L petrol engine, more in line with smaller-capacity engines.

Stop-start is standard and over a week of city, suburban, and some freeway running, we averaged 7.4L/100km (at the pump), while the car’s on-board computer indicated 7.1L/100km for the same period.

Minimum fuel requirement is 91 RON ‘standard’ unleaded (or E10) and you’ll need 48 litres of it to fill the tank.

Using the official number, that translates to a driving range of around 760km, which drops to roughly 650km using our real-world figure.

Official fuel consumption for the combined (urban/extra-urban) cycle is 6.7L/100km, which isn’t outstanding, especially compared to the hybrid version which can get 4.7L/100km.

Our own testing after city driving and motorways saw 7.9L/100km. Not the most efficient engine in the range, so if it’s saving petrol you want then go for the hybrid, or better still, the electric version of the ZS.

The CX-3’s compact size makes it easy to steer through tight city and suburban streets. 

It weighs in at just under 1.3 tonnes, which is marginally lighter than most of its key competitors, and acceleration is sprightly with the 0-100km/h covered in less than nine seconds.

Close to 200Nm of pulling power is plenty for a car in this class and unusually for a non-turbo engine, peak torque arrives at a relatively low 2800rpm, so there’s ample mid-range urge.

The downside is the 2.0-litre, four-cylinder engine makes its presence felt inside the cabin, with mechanical noise noticeable even at around-town speeds. Not a conversation stopper by any means, but it’s there.

No complaints with the six-speed auto transmission. It’s smooth and the ratios keep the car in its performance sweet spot nicely. It also shifts into sequential ‘Manual’ mode if your prefer or need to call the shots.

Electric ‘drive-by-wire’ throttle response is smooth, but flick the console-mounted rocker switch to ‘Sport’ and things become more urgent, with the transmission shifting down earlier and holding on to ratios longer.

The steering is evenly weighted for easy parking and road feel is good. Speaking of parking, a 10.6m turning circle is large-ish for such a diminutive SUV, but surprisingly, not out of line for the category.

Suspension is by struts at the front and torsion beam at the rear, and despite the CX-3’s relatively short wheelbase and the Evolve’s bigger 18-inch wheels, ride comfort over typically pock-marked urban roads is surprisingly good. The Toyo Proxes R52A (215/50) tyres are also quiet and reassuringly grippy.

Braking is by generous ventilated discs at the front and solid rotors at the rear, and they’re more than up to the task of calmly washing off speed in this city-sized SUV. 

The front seats proved comfy and supportive on test, although you’ll have to step up to the next Touring grade to score electric adjustment for the drive or lumbar control of any description.

The lack of oomph from the 1.5-litre naturally aspirated four-cylinder engine affects the driving experience of the ZS. This lack of accleration is hampered not just by the low outputs of the engine but also by the transmission, which is a CVT and these don't favour getting power to the road as effectively as torque convertor transmissions.

Handling is good for this class, with the ZS feeling stable under most conditions. Steering is excellent, with a nice weight and accuracy to it.

And while the ZS is no prestige car, the ride is comfortable, composed and better than many small SUVs at this price point.

Other pluses include its smaller size which makes it easy to manoeuvre in city traffic and park in tight spaces.

The final driving score however is dragged down by the engine and transmission which fail to provide the acceleration needed to easily overtake, merge or move quickly when needed at stop signs or out of car spaces on busy roads.

Safety is a strength, as well, with the MG ZS scoring the maximum five-star ANCAP assessment. Safety tech is abundant with AEB, lane keeping assistance, blind spot warning and rear cross traffic alert.

You’ll also find a clear 360-degree camera view, seat belt reminders and adaptive cruise control.

For child seats there are two ISOFIX mounts and three top tether points across the second row.

A space saver spare wheel is located under the boot floor.

Mazda covers the CX-3 with a five-year/unlimited-kilometre warranty, which is the current market standard. Roadside assist is included for the duration. 

Recommended service interval is 12 months/15,000km, and the average annual cost for each workshop visit, for the first seven years, is $438.

An average under $450 is alright, but Toyota’s capped price figure of $195 per workshop visit for the first five years of C-HR ownership puts it in perspective. Mind you, Toyota’s charges step up considerably after that fifth year.

Ownership costs are a strength, too. The MG ZS is covered by a 10-year/250,000km warranty.

MG’s ‘Precise Price’ service plan locks in the cost of servicing with 12-month/15,000km intervals and a cost of about $1200 over five years.