Mazda CX-90 vs MG Im5

What's the difference?

There are many reasons I quite like this CX-90. It sells the plush luxury promise when it comes to its interior and design, it feels big and purposeful, and has a refreshingly minimalist approach to its cabin tech. As a seven-seat SUV it’s particularly impressive, with plenty of amenity and a third row that can genuinely fit an adult in comfort.

However, there are areas where it could use more polish, from the drivetrain to the ride, and it ultimately strikes an odd point for price and ownership which feels lost between the premium segment and the mainstream rivals.

If you’re a long-term Mazda owner, I still think you’ll love it, and this Touring grade is definitely the best value in the range. It offers the lion’s share of equipment at a price more comparable to Mazda’s traditional mainstream rivals.

The MG IM5 Performance is fast, comfortable, quiet and super refined. Putting some minor spec and active safety niggles to one side, it offers the features, tech and price to match it with its well-credentialled and already popular mid-size EV sedan competitors. Is there room for one more? We think there should be.

The CX-90 is an impressive car to behold. Moving things onwards and upwards from its CX-9 predecessor, the CX-90 is bigger and even more refined in a lot of ways.

Mazda’s signature design language has evolved into something a bit beefier, trading out the delicate sharp angles and chromes of its front-wheel-drive predecessors for something a bit more upright, with a wide stance and tough proportions.

The long bonnet and expansive body panels stress the long-engined, fluid nature of this car’s design language. It certainly gives it a more premium vibe than the boxy American-influenced style of the Hyundai Palisade, and leans more European than the science-fiction styling of something like the Kia Sorento.

If anything, there’s some clear BMW influence in the shape of the tail and light fittings. Light lashings of chrome keep it in-line with Mazda’s previous design language, and on this base model at least, plastic claddings over the arches toughen it up a bit.

Inside is plush. In fact, it’s treading on Lexus territory when it comes to the design and feel of the seats, dash, doors and there are even padded leather touches down the sides of the centre console for your knees to rest against. Even the standard leather seats are nice (with softer Nappa leather available on higher grades), and I actually find the somewhat monochrome interior treatment on our test car to be the most modest option. It’s off-set by silver trims and a touch of chrome in the steering wheel and doors.

The dash is in a more traditional style (again, it feels influenced by BMW here) with a padded insert across the front, inset vents and a climate control panel leading down to a nice wide console with tasteful patterned trims, and an electronic shifter. The screen in this base car is of modest dimensions compared to most cars today, but those who aren’t sold on giant touchscreens will love it.

Even the digital dash elements are tastefully executed, although they’re not particularly customisable, which is a shame. 

Playing spot the straight line on the outside of the MG IM5 is like an automotive design version of Where’s Wally? There aren’t many, in the midst of an unrelentingly curvaceous exterior treatment.

At close to five metres long and two metres wide the IM5 is appreciably longer (+211mm), a little wider (+27mm) and a bit taller (+33mm) than a Tesla Model 3. Think BMW 5 Series in terms of overall size.

And the soft-form shape is functional; the swoopy liftback boasting an ultra-slick 0.24 drag coefficient.

That said, I’m not convinced by the ‘Periscopic’ cameras informing the driver assistance systems from the front guards. They scream tacked-on afterthought. But a touch-only initial opening function for the flush door handles is cool and makes life easier.

The curves continue inside with soft-padded surfaces around the dash and doors, but the straight edge obviously came out for the 10.5-inch central media screen and vast 26.3-inch upper display. There are next to no buttons; even exterior mirror adjustment is directed from the screen to a multi-function steering wheel control.

System software (powered by a Qualcomm ‘Snapdragon’ chip) is lightning fast with a two-finger up and down swipe shortcut function on the central screen for ventilation and other functions.

The interior is light and bright thanks to the enormous panoramic sunroof. It’s been fine in cooler winter conditions during this test but it could be interesting to revisit in the heat of an Aussie summer

There are two interior colour schemes available - the ‘Highland Grey’ of our test car or ‘Dover Beige’ for those brave enough to live life with the threat of scuff marks on your shiny new car’s glamorous but vulnerably light interior.

The CX-90 is enormous, but despite its long bonnet, it feels on the inside like it makes good use of its dimensions.

Up front, it’s easy to find a seating position thanks to an array of adjustability, from the seats to the telescopic adjust for the wheel, and the cabin is wide and tall enough to accommodate pretty much anyone with ease.

Unlike some Mazdas which have a strange zoom-factor on their rear vision mirrors, the CX-90 doesn't have this problem, and visibility generally out the windows is impressive. I can see the long, tall bonnet and cosy dash design creating visibility issues for shorter drivers, however.

Padded materials are everywhere they should be (and more), and when it comes to storage there’s a large bottle holder in each front door, two more cupholders in the centre console (with a flip-out cover), a split-opening centre console box (which hides USB-C connections, great for cable management) and a wireless charging bay up front below the climate unit.

It’s rare these days to see a full array of physical buttons and toggles for a dual-zone climate set-up, but the Mazda has the whole lot. It’s a breeze to adjust on the fly and integrates into the design in a subtle way.

It’s also worth calling out the multimedia screen isn’t a touch unit. Instead, you need to control it through a handful of buttons and a rotary dial on the centre console. It’s nice to have a physicality to it, and it works well for the relatively simple base operating system, but it’s a clumsy way to interact with phone mirroring.

In my experience Apple CarPlay has simply too many icons and menu features to work around with a dial-operated system, to the point where it’s distracting to use on-the-go (thus, defeating the purpose of having physical controls).

The second row is a real highlight. Set to its default position, I have leagues of legroom behind my own driving position (at 182cm tall). Again, heaps of width and headroom here, and even the huge rear doors open nice and wide, which should make loading luggage and fitting child seats easy.

The seat trim is just as good as it is in the front, with decent side bolstering, and top-notch amenities, with shades built into the windows, decent-sized bottle holders in each door, a further two in the drop-down armrest, soft pockets on the backs of each front seat, and a separate climate zone with independent temperature and fan speed controls.

There are two adjustable air vents with a lock-off, as well as two USB-C ports for power. Top marks.

The third row is usually where things get tricky for SUVs like this, but the CX-90 isn’t out of tricks yet.

Access isn’t the easiest. The second row can fold forward, but the left over aperture for clambering in, even though the doors are quite large, isn’t great, which will make it a no-go for anyone with mobility issues.

However, once you’re back there, I was surprised to find a full-sized adult like me can fit in relative comfort. With the second row set as far back as it can go, my knees are hard up against the back, but when rolled forward for more third-row space, there's still plenty of room in the middle. I was left with ample room for my knees and feet in the back seats. The seat trim also offers decent padding and comfortable trims, which is rare for most three-row SUVs, and while you wouldn’t want to be too much taller than me, the roof was just tall enough to have a little airspace above.

The armrests are hard plastic, unfortunately, but offer two large bottle holders on each side, as well as a USB-C port, and vents with decent air flow, which is again, quite rare for a three-row SUV.

I’d go so far as to say this is one of the best SUV third rows I’ve been in when it comes to space, comfort and amenity.

Now for the luggage space. I was pleased to find, even with the third row up, I could fit the largest (124 litre) CarsGuide luggage case with room to spare on either side. Officially, space here is 257L, but it’s rare to fit a case this size in a three-row SUV.

With the third row folded down, space comes in at 608 litres, which is on-par for this segment, and with the second and third row down, it tops out at 2025L.

With such space on offer it’s probably worth keeping in mind the payload, which is 580kg, and for those who want to add a trailer to the mix, the maximum towing capacity is 2500kg braked or 750kg unbraked for the 50e petrol straight-six versions like the one we’re testing here.

There’s plenty of breathing room up front and in terms of storage one of the first things worth calling out are the long but relatively narrow door bins. No good for anything above unusually slender bottles, even if they’re lying down.

No conventional glove box in the dash, but there is a large lidded box (cooled and heated) between the seats that doubles as a centre armrest. It’s supplemented by a big stowage area underneath the flying buttress style centre console.  

There are two cupholders in the centre console as well as a wireless device charging pad in front of them with a vaguely phone-shaped oddments bin alongside it.  

Move to the rear and the IM5’s 75mm wheelbase advantage over the Tesla Model 3 is clear. Heaps of knee and headroom for me at 183cm sitting behind the driver’s seat set to my position. 

But… the seat sits low which pushes your knees up into the air to the point where my thighs are not contacting the seat cushion. Even though the rear seat reclines to a certain degree it’s a problem compounded by a chronic lack of room for your toes under the front seat. Awkward.

There are map pockets in the front seatbacks, modest bins in the doors and a fold-down centre armrest with two cupholders. Adjustable ventilation in the rear of the front centre console always makes life in the rear seat more pleasant.

The car also houses ‘Strong Magnets’ at various points around the cabin and boot, with a configurable adapter able to lock a phone or tablet into place for the entertainment of, in our case, back seaters. 

Speaking of devices for entertainment, there are two USB-C sockets and a 12-volt outlet in the front and another USB-C and 12V in the back, so charging isn’t an issue. 

The IM5 is a liftback so the boot aperture is generous and a capacity of 457 litres with the rear seats up is decent for a car of this size, although that’s less than the Tesla Model 3 (594L) which has an additional well under the floor. 

Still, enough room for the largest (124L) and smallest (36L) suitcases from the CarsGuide three-piece luggage set with some room to spare.

The power tailgate can be operated hands-free via the key or an always welcome under bumper kick function.

Volume expands to 1290 litres with the rear seats folded and there’s a modest 18-litre ‘frunk’ under the bonnet.

The bad news is a repair-inflator kit rather than a physical spare wheel, but the better news is the IM5 Performance can tow a 1500kg braked trailer (750kg unbraked).

The IM range also features the ‘MG iSmart’ app allowing remote control of various functions including charging, checking vehicle location and route planning. 

At $80,990, drive-away, the IM5 Performance sits at the top of a three-grade line-up that starts with a 75kWh RWD Premium model at $60,990, followed by a mid-spec 100kWh RWD Platinum for $69,990, both drive-away.

Its most prominent competitor is arguably the Tesla Model 3 Dual Motor AWD ($80,900), with others including the BYD Seal Performance AWD ($68,798), Hyundai Ioniq 6 AWD Epiq ($86,500) and Polestar 2 Long Range Dual Motor Performance ($80,380).

Worth noting, too, the IM6 range - essentially the same car with a taller SUV body - has the same model walk-up and identical pricing.

Once you’ve crossed the $80K threshold it’s fair to expect a decent basket of standard fruit and aside from the dynamic and safety features we’ll get to shortly, the IM5 Performance comes to the party.

Highlights include a double-glazed panoramic roof, power-adjustable (12-way driver, six-way passenger) heated and ventilated front seats (also heated in the rear), dual-zone climate control, 20-speaker audio (with digital radio), 256 colour ambient lighting, a power tailgate (with hands-free function) and 20-inch alloy rims.

There’s also adaptive cruise control, a heated steering wheel, wireless Android Auto and Apple CarPlay, LED headlights, keyless entry and start, wireless device charging (50W), a 10.5-inch central control screen and a sweeping 26.3-inch upper screen; the right side for instrumentation and car data, the (touch-sensitive) left side for multimedia and other onboard functions.

There’s more and it’s clear this car at least matches or betters its direct competitors for included equipment.

The CX-90 gets a bit exciting under the bonnet with its big 3.3-litre in-line six-cylinder turbocharged petrol engine. It produces a whopping 254kW/500Nm, well above par compared to its mainstream rivals.

This engine is mated to an eight-speed automatic transmission. This is no run-of-the-mill transmission though. Instead of the usual smooth hydraulic coupling this style of transmission is known for, the Mazda uses a hybridised single clutch set-up instead.

This is in the name of efficiency. A single-clutch plate has less loss, and is therefore more fuel efficient, with a small electric motor helping to push things along as part of the mix.

The catch is, like the sometimes-derided dual-clutch automatics, it’s not as smooth to operate. More on this in the driving section.

Efficiency – What is its fuel consumption? What is its driving range? 8/10

As a result of this unusual transmission set-up, fuel efficiency isn’t bad for such a big and powerful engine, and for such a large vehicle.

The official combined fuel consumption for the CX-90 G50e is 8.2L/100km, which is already impressive, and in my week with the car over a few hundred (mostly urban) kilometres it landed close, at just 8.9L/100km.

It’s seriously impressive and runs rings around the six-cylinder Hyundai Palisade (10.7L/100km combined) while producing significantly more power than the more efficient Toyota Kluger Hybrid (5.6L/100km). On the flipside, you’ll need to fill its massive 75L fuel tank with mid-shelf 95RON fuel.

The MG IM5 Performance is powered by an electric motor on each axle - the rear (372kW/500Nm) more powerful than the front (200kW/300Nm), for overall outputs of 572kW (that’s close to 770hp) and 802Nm of pulling power.

The official term for that amount of grunt is… a lot. And we’ll get to what it means on the road in the Driving section shortly.

For all its clever, efficient drivetrain, the CX-90 has a bit of a mixed drive experience. Initially, it comes off as impressive. It’s plush and quiet from behind the wheel, and the primarily rear-drive nature of its drivetrain gives it the big premium steering response missing from its mostly front-drive rivals.

The flaws with its tricky transmission quickly become evident, though. The clutch constantly needing to engage in stop-start scenarios makes for a slightly jerky and uneven experience, similar to the feel of a dual-clutch auto, particularly in traffic, while the at-speed gear shifts, which in a dual-clutch tend to be much smoother are telegraphed more physically by this Mazda system.

As evidenced by the actual fuel consumption, it’s clear this system does what it sets out to, and it even feels like it could be significantly better, but Mazda will need to invest some time in calibration. For what it’s worth, it feels better than its original implementation I drove at the launch of the CX-60, which was the first car to get this system.

A subsequent software update has solved some issues, but it still can’t compare to a regular auto when it comes to smoothness.

However, the engine is immensely satisfying. The big six has a low roar when pushed, and motivates the big CX-90 with ease when you step on it. It pairs nicely with the weighty steering to make for a car which feels purposeful and satisfying to steer when it gets going.

In this sense it nails the brief of elevating Mazda out of the regular crop of front-drive seven-seat SUVs, giving it a distinct and more premium edge.

As also noted with the CX-60 though, the CX-90 has the same issue with its ride quality. It’s a little too hard to give it the kind of refined response to road imperfections we’ve come to expect from brands like Lexus and BMW. The firm response to the road helps this big heavy SUV feel controlled in the corners, but it doesn’t deal with suburban bumps how it should.

Larger hits in particular are often communicated to the cabin. The CX-90 is better than its smaller CX-60 sibling, which went so far as to have its rear dampers recalled, but the brand is even considering similar updates to this large SUV, so keep an eye out.

While this version of the CX-90, the base Touring with its smaller alloys and larger tyres, is more comfortable than any other Mazda on this new platform I’ve driven, it still leaves room for improvement.

It’s a shame, because otherwise the CX-90 is a lovely and luxurious SUV to drive, with a quiet, plush interior and a satisfying engine. It’s so close to greatness that it’s frustrating.

First things first, the IM5 Performance is supercar fast. This 2.3-tonne five-seater blazes from 0-100km/h 3.2 seconds and with its dual motors combining to produce 572kW/802Nm, eye-widening performance always resides underneath your right foot.

But it’s not all about straight line speed. Ride comfort is excellent. Underpinned by an all-new platform, the IM5’s suspension is by double wishbones at the front and multi-links at the rear. But the key to its bump and rut smoothing ability is air suspension and ‘continuous control’ active damping.

Fold in double-glazing on the full-length glass roof and side windows, as well as active noise cancellation and you have a serene interior environment at any speed. Also worth noting the front seats are great; as grippy as they are comfortable.

Not only that, despite its relative heft, this mid-sizer steers well, too. Not the last word in road feel but it points accurately and the standard rear steering helps with prompt (but never jerky) cornering turn-in. Flick to ‘Sport’ mode and the IM5 is up for some enthusiastic running.

The rear wheels can turn up to 12 degrees in the opposite direction to the fronts at slow speed, which makes for a usefully tight 10-metre turning circle. But above that, at lesser angles, it adds extra stability and decisiveness in the way the car steers through even tight, twisty sections.

Rubber is top-shelf Pirelli P Zeros on 20-inch alloys (245/40 fr - 275/35 rr) and it grips hard, especially in the wet weather over much of the test period. Braking is solid, as it needs to be, with ventilated discs all around and four-piston callipers at the front. 

No adjustable regen braking but you can feel the ‘Cooperative Regenerative Brake System’ (CRBS) doing its thing when you lift off the accelerator. 

The physical rear view is modest thanks to the slope of the back window reducing its functional area for the driver to that of a 1950s VW Beetle. Even the interior rear-view mirror is tiny and folds up into a recess in the headliner if you’d prefer life without it.

But that’s where a rear camera view popping up on the upper screen display (accessed via the right-hand steering wheel click control) comes in handy. Side camera views are also available as is a 360-degree overhead view, which makes parking straightforward.

If you need more parking help there are various self-parking modes including a nifty ‘Curbside’ function that will realign the car hands-free if you’re parallel parked too far out from the kerb.

In a similar vein, a ‘Rainy Night’ mode projects left and right rear views onto the main screen using AI to enhance clarity and highlight pedestrians and cars.

Overall the ADAS (Advanced Driver Assistance Systems) are relatively unobtrusive but we found ourselves switching off the incessant overspeed chime that sounds for 10 seconds if you creep over the indicated speed limit, even when the system has misfired on the correct speed. For example, 40km/h school zones on a Sunday.

The over-zealous driver distraction warning also occasionally issued a visual and audible slap on the wrist when I was looking straight ahead. Tellingly, there’s a specific quick screen for turning both these functions off, but it kinda defeats the purpose of having them in the first place.

We also found the adaptive cruise control to be hesitant in multi-lane environments, reducing speed occasionally because the system seemingly believed a car was set to merge, when it wasn’t.

No independent ANCAP safety assessment at this point but there’s a full suite of active safety tech onboard including AEB, lane departure warning, blind spot detection, rear cross-traffic alert & braking, forward collision warning, lane-change assist, tyre pressure monitoring and heaps more. And we touch on how it all operates in the Driving section above.

There are no less than nine HD cameras, 12 ultrasonic sensors and three millimetre-wave radars on duty.

If a crash is unavoidable there are seven airbags including full-length side curtains and a front centre bag. Multi-collision brake also minimises the chances of subsequent impacts after an initial crash. There are also three top tether points and three ISOFIX child seats anchors across the second row.

All right on the pace for this part of the market and the IM5’s competitive set.

The usual five-year and unlimited kilometre warranty applies to the CX-90 range, with a matching five years of roadside assistance.

Servicing is required once every 12 months or 15,000km, whichever occurs first, and a schedule of costs on Mazda’s website extends to seven years. Over the first five years, prices fluctuate between $469 and $1304 annually, with an average yearly cost of $693.30. The price puts this big-engined Mazda up the premium end of mainstream automakers when it comes to service costs.

The MG IM5 Performance is covered by a seven-year/unlimited km warranty, which is a plus, but the catch is it’s conditional on authorised dealer servicing. Go elsewhere and the term drops to a more common five years/unlimited km. The drive battery is covered for eight years/160,000km, which is the norm in the Aussie market

Servicing is required every 12 months or 20,000km with charges averaging $586 per workshop visit for the first five years, which is on the high side for an EV, even at this price point, the average bumped up by a more than $1400 doozy at year four.

MG IM models are sold (with service available) through all of MG’s 100-plus dealerships across the country, so no concerns there.