Gac M8 vs Kia Carnival

What's the difference?

The GAC M8 PHEV Luxury is a people mover that carves out a very specific niche, largely thanks to its plug-in hybrid powertrain and ambitious price point. It’s undeniably well specified and genuinely luxurious inside, but it never quite escapes its chauffeur-like identity as it's a vehicle built around passenger comfort rather than driver engagement.

Being a new brand in our market limits ownership appeal, at least for now. Where the M8 really impresses, though, is efficiency, and that alone may be enough to justify its unusual positioning.

Ok, here's the rub. Everything you just read could well be pointless. You like the Carnival. In fact, it sometimes makes up close to 90 per cent of the sales in its segment, and outsells all of its competitors combined.

So whether I like it or not, I suspect you'll be buying one anyway.

But I can say this - the new Carnival improves the formula right across the board. Well, everything except for price.

The GAC M8’s design is… well, it’s out there. This isn’t a people mover that fades politely into the background. There are clear parallels with the Lexus LM, right down to the towering grille (complete with a vague hint of spindle shaping), which may well be the tallest grille I’ve encountered!

It’s a big unit, too, measuring 5212mm long, 1893mm wide and 1823mm high. The overall shape is sharply squared-off and prioritises presence over dynamism. It also comes standard with a full suite of LED exterior lighting.

The cabin claws back some design cred, though, as it’s downright plush with its semi-aniline two-tone leather upholstery - finished in a lush burgundy/black duo in our test vehicle. Accent panels vary between a diamond-design for the dashboard and doors, to suede soft-touchpoints and rose-gold inserts liberally scattered across the cabin. 

The only accent that doesn’t land is the large swathes of piano black on the centre console as it’s hard to keep clean.

There are some nice little surprises, too, like the fidget spinner-style crystal gear lever, which is surprisingly fun to fiddle with at traffic stops and two sunroofs with the rear fixed panel illuminating with internal ambient light.

Some of the finishes aren’t the best as there are joinery and door handles that don’t line up properly, which is surprisingly more annoying than you’d think once you notice it. But overall, the cabin feels well-considered and luxurious, even if the execution isn't always flawless. 

Surely the greatest trick the Carnival pulls off, and it does so convincingly, is that it manages to make something so quintessentially uncool, the people-mover, and make it look good. Somehow sporty, even.

I like the Carnival's big, bold and blacked-out front end of the GT-Line, and with its two-tone 19-inch alloys, wide stance and low ride height, it looks almost like some mad attempt at a JDM tune car, rather than a sensible people mover.

Elsewhere, the boxy profile, the sharp body creases and the third-row compartment that kind of juts over the rear tyres like a house that's been extended all somehow work, and give the Carnival far more street cred than you might expect.

Inside, we spent time only in the flagship GT-Line and its GT-Line Lite sibling, and both present as calming, comfortable spaces, and Kia's minimalist approach to combining the climate and audio controls into a single strip (it's functionality can be changed by pushing a button) helps keep the cabin fuss free.

The tech in the top-spec models feels modern and on-point, too, and the materials are all nice under the touch. Be warned though, the cabin plastics get progressively worse the further back you sit, and the third row is cocooned by hard and scratchy plastics.

The front row has plenty of space and the seats feature heating and ventilation, making longer journeys comfortable. However, there’s no extendable under-knee support and only the driver gets lumbar adjustment. I’ve spent much of the week feeling like a chauffeur, as my husband and child insisted on sitting in the back!

The middle row is where the M8 really shines. The captain’s chairs are indulgent, offering full recline, footrests, heating, ventilation, and massage. Comfort is excellent, though the footrest extension limits space for the third row, and even at 168cm I found it a snug fit when fully reclined. Access is straightforward with grab handles and a low 143mm step-in height, though be mindful of kerbs as the doors aren’t forgiving when it comes to tall council strips.

The third row is one of the few that genuinely accommodates adults. Head- and legroom are ample, and the seats feel firm but comfortable, especially with the foldable armrest. Amenities aren't forgotten with four cupholders, two USB-A ports and directional air vents. Access requires sliding through the middle row, so it’s best if those seats are unoccupied, but otherwise it’s not too taxing.

Front-row storage is practical, with a mid-sized glove box, dual-opening middle console, cupholders and a clever phone cradle that integrates a wireless charging pad and cable routing for a tidy set-up. There’s also a USB-A and USB-C port and a 12-volt socket in the large shelf underneath the centre console.

The middle row enjoys three USB-A ports, a USB-C port, directional air vents, retractable sunblinds, tray tables (though not usable while driving) and climate control. Storage is decent, with six cupholders, one of which has heating and cooling, two map pockets, a pull-out drawer and a 220-volt AC outlet.

The 10.1-inch touchscreen multimedia system is serviceable but feels slightly small for the luxury segment. Graphics aren’t the sharpest, the layout isn’t always intuitive and some functions, like the heated steering wheel, require digging through menus. Wireless Apple CarPlay and Android Auto performed flawlessly throughout the week and the 12.3-inch digital instrument cluster is clear and well laid out.

Boot space is modest for a people mover, offering 280L with all rows in place which is enough for a small grocery run but not for a fully-loaded family outing. Folding the third row expands capacity to 1500L, though that leaves you with a four-seater. The loading height is low, which helps, but it has a tall lip which prevents it from being ideal for sitting on during tailgates or picnics. There’s a small underfloor compartment housing the tyre repair kit and a powered tailgate rounds out the package.

The Carnival measures 5115mm in length, 1995mm in width and 1775mm in height, and it rides on a sizeable 3092mm wheelbase. 

And those mini-van dimensions have a predictably positive impact on luggage space, with room growing from 627 litres with all seating rows in place, to a massive 2827 litres with the third row stowed.

The key practicality perk here, though, is space, and lots of it. At 175cm, there was ample room for me in the middle row, and you can configure the cabin to your liking, too. You can slide the row on rails, for example, to prioritise leg room where you need it, and the middle seat folds down to reveal cupholders in a kind of hard plastic travel tray.

But even in the third row I could easily get comfortable, though head room begins to get a little tighter. There are cupholders and USB connection points, too, and I can honestly say you could send full-size humans back there and not feel overly guilty about it.

The Carnival will tow 2000kgs braked, too.

Bad news first. The price is higher this time around, right across the five-trim line-up, with the prices up between around $2600 and $5300, depending on which trim level you’re shopping for.

Prices start at $50,150 for the entry-level S petrol, and climb to $72,910 for the top-spec GT-Line diesel. There’s also a GT-Line Hybrid, which tops the group at $76,210, but it’s not here yet, so we’ll cross that electrified bridge when we get to it and stick with the ICE range for now.

The range opens with the S ($50,150 petrol, $52,380 diesel), which scores 17-inch alloys, LED headlights and DRLs, heated mirrors, cloth seats, an electronic parking brake, and a smart key with push-button start, which is new for this update.

On the tech front, there is a new integrated 4.0-inch driver display, and a new 12.3-inch central screen with Apple CarPlay and Android Auto, linking with an eight-speaker sound system, now with a surround-sound function.

Stepping up to the Sport ($56,050 petrol, $58,280 diesel) adds 18-inch alloys, rear LED combination lamps, a leather steering wheel and shifter, and dual-zone climate up front with single-zone temperature control in the second row. New for this update is a wireless charging pad and artificial leather seats. 

Next is the Sport+ ($62,380 petrol, $64,610 diesel), which gets a whole host of new safety equipment, which we will come back to in a moment, along with a powered tailgate, automatic sliding doors and auto windows, and heated seats in the first and second rows. It also ups the tech, with twin 12.3-inch screens taking care of multimedia and driving info duties.

Then comes the GT-Line Lite ($66,350 petrol, $68,580 diesel), which is fitted with bigger 19-inch alloy wheels, scores LED interior lighting, gets a dual-pane auto sunroof and some chrome embellishments on the exterior. The trade-off, though is that the powered windows are now for the driver only, as is the powered front seat.

Finally, there’s the flagship GT-Line ($70,680 petrol, $72,910 diesel), which nabs dual-projection headlights, a heated steering wheel, a 12-speaker BOSE sound system, ventilated seats up front, a big head-up display and a digital rear-view mirror, along with a slightly better interior treatment and the return of the auto window and powered seat to the passenger side of the car.

Both M8 grades share the same plug-in hybrid powertrain, pairing a 2.0L, four-cylinder, turbo-petrol engine with a single electric motor. Combined, they produce up to 274kW of power and 630Nm of torque which is impressive on paper, though it only manages 0‑100km/h in 8.8 seconds. Once the battery is depleted, outputs drop to a more modest 140kW/320Nm. Power is sent to the front wheels through a two-speed automatic transmission, and the M8 is not rated for towing.

To get the best performance from this type of set-up will require diligent recharging.

There are two ICE options on the table here. The first is what I reckon is the lesser of the two, a 3.5-litre petrol V6, producing a rev-happy 216kW and 355Nm.

The better option, I think, is the 2.2-litre, four-cylinder diesel, which makes 148kW and 440Nm, and just suits the nature of the car a little better.

Both pair with an eight-speed automatic, and send their power to the front tyres.

The M8 is equipped with a Type 2 CCS charging port, accepting up to 6.6kW on AC and 39kW on fast DC power. Being able to use a DC charger is a definite plus for a plug-in hybrid and you can charge the battery on this type of charger from zero to 80 per cent in around 30 minutes.

Its 25.57kWh lithium-ion battery is generous for a plug-in, delivering an electric-only range of up to 106km (WTLP). With a combined cycle (urban/extra-urban) fuel consumption figure of 6.1L/100km and a 56L fuel tank, the M8 offers an overall driving range of more than 1000km which is excellent for a vehicle of its size. As with any plug-in, regular charging is key to achieving these figures; over my week of driving, I averaged 6.2L/100km, which is very excellent.

GAC recommends a minimum 91 RON unleaded petrol.

The petrol engine will sip a claimed 9.6 litres per hundred kilometres on the combined cycle, and produce 220g per kilometre of C02. The diesel lowers both those numbers, to 6.5 litres and 170 grams.

Both models are fitted with a 72-litre fuel tank, which means you’ll be sailing well north of $100 to fill one up.

Around town, the M8 delivers plenty of power and is whisper-quiet when running in electric mode. Once the battery depletes or you switch over to the petrol engine, that sense of instant oomph fades. Overtaking on hills is achievable, but even with an empty car it can feel a little underwhelming.

Steering is light, but the car feels solidly planted in most situations. Handling isn’t as dynamic as a Kia Carnival and the M8 can feel a touch ungainly through bends, though it’s more than manageable for everyday driving.

Ride comfort is high, especially for passengers, due to forgiving suspension and a cabin that doesn't let a whole lot of road or wind noise in. The M8 is a comfortable cruiser.

Visibility is surprisingly good for a 5.2m-long vehicle with minimal blind spots from the driver’s seat. The bonnet and dash, however, stretch further than they appear, which can make judging the nose a little tricky at first.

Ground clearance is only 143mm, so it’s easy to scrape the nose over speed bumps or when parking. The 360-degree camera system is decent, but manoeuvring into tight spaces still requires some care as it fills out a space. You also have to leave about a metre of clearance behind you if you want to open the tailgate.

Forgive the horrific paraphrasing, but it seems rumours of the death of diesel have been greatly exaggerated, at least when it comes to the Kia Carnival.

Get this – diesel sales make up some 90 per cent of the Carnival's total haul, with petrol providing a pittance towards the sales total, presumably being picked up by fleet buyers.

And to be honest, that means nine out of 10 people are making the right choice here. Yes, the petrol makes more power, but it's the torque on offer from the diesel that makes pushing the Carnival around feel far more effortless.

The petrol engine can definitely get you moving, but it feels a bit too rev-happy and thrashy when you really put your foot down, and its significantly thirstier to boot.

The diesel isn't perfect – the thrum of the engine is a constant companion whenever you put your foot down, and there's actually too much torque on offer at times, like if you're accelerating up hill from a standstill on a damp road, and so the front tyres can scrabble and scramble for grip.

But it otherwise so perfectly suits the nature of the Carnival that it is definitely the best and most satisfying choice.

Another big change for this update is the fact that Kia's complete ride and handling program has been rolled out here. Kia says local work done on the outgoing car, the one this replaces, was curtailed by Covid and bushfires, and so ended up being done by correspondence.

This one, though, has had the whole enchilada thrown at it, and it shows. They've succeeded in making a bigger car feel smaller around you. It's not a sports car by any measure, but nor does it ever feel too big and unwieldily.

Part of that is down to the steering, which is direct and confidence inspiring, but mostly I suspect it's because of the ride, which is firmer than you might expect in a family hauler, but also offers a connection to that road below that makes you feel in control.

Whether a firm-ish ride is a perk or negative is up to you, but it definitely works for me.

Part of the change package for this updated Carnival is in its safety kit, some of which simply wasn’t available when Kia launched its predecessor.

Which is why every model now gets a centre side airbag, 'Forward Collision Assist AEB', 'Rear Occupant Alert', 'Trailer Stability Assist' and front parking sensors, joining the rear ones that were already there.

Sport+ Models and up now add a 'Blind Spot View Monitor' and rain-sensing wipers, as well as rear AEB through the 'Parking Collision Avoidance' function.

I have to say, though, when your entry-level car is $50k-plus, there’s no real excuse for limiting the best safety kit to the upper-spec models.

Also standard are lane keep assist, with 'Lane Follow Assist', multi-collision braking, a speed-limit warning (which you will turn off) and a reversing camera.

The Carnival range carries a five-star ANCAP safety rating, which it earned in 2021.

The GAC M8 is backed by a seven-year, unlimited-kilometre warranty, along with five years' complimentary roadside assistance, which is competitive against several of its nearest rivals. Service pricing has yet to be confirmed, though servicing is scheduled at 12-month or 15,000km intervals.

For now, the service network is limited, with around 10 centres nationwide, though GAC offers authorised servicing through third-party providers such as MyCar, which helps broaden access in the short term.

Like all Kias, the Carnival arrives with a seven-year, unlimited-kilometre warranty, with capped-price servicing throughout.

Kia’s servicing costs are higher than some of its competitors, though, so you might want to compare them, as well as compare what’s included, and the diesel model will usually cost slightly more to maintain than the petrol version.

Service intervals are every 12 months or 15,000kms, and while the brand is still finalising the petrol servicing costs, the diesel prices are $386, $682, $480, $869, $434, $845 and $461, covering the first seven years of ownership.