Lexus Gx550 vs Hyundai Ioniq 9

What's the difference?

The new Lexus GX 550 Sports Luxury looks fantastic and has enough mod cons to satisfy a family but it’s not as luxurious as you’d expect from a premium brand and the fuel economy and driving range will turn off some. But if you’re still interested, there’s a lot here that will make you happy and it’s one of the smoothest 4WDs I’ve driven.

The Hyundai Ioniq 9 is a big, comfortable and powerful SUV that ticks lots of boxes. Sadly, though, the electric power that makes it such a treat to drive is probably the same thing that will keep it off plenty of shopping lists. For now, at least.

Note: CarsGuide attended this event as a guest of the manufacturer, with accommodation and meals provided.

The new GX 550 looks massive and while it shares the same platform as the Toyota LandCruiser 300 series, it doesn't share all of its bulk. They both stand at 1980mm wide but differ on length (5015mm vs 4980mm) and height (1670mm vs 1950mm), respectively.

The new design is fabulously rugged but each body panel looks meticulously crafted and is just the right size. This just means the proportions look right and your eye sort of glides over the big body rather than stopping on any one feature.

But having said that, there are a lot of nice features to focus on, like the long LED headlights and rear strip light, auto-folding side steps, 22-inch alloy wheels and sharply styled rectangular side mirrors.

The tailgate window can also be opened if you need to pop something into the boot but don't want, or have the space, to open the tailgate itself.

The styling takes a minor nose dive once you hit the cabin, though, because it doesn't look as sumptuous as you'd expect in a premium SUV.

I love the utilitarian and military vibe of the vertical dashboard, chunky air vents and relatively small windscreen. It looks great but some trims are plasticky and the touchpoints, while soft, are not Lexus-plush.

However, the technology looks gorgeous with an integrated 14-inch multimedia display and a 12.3-inch digital instrument cluster. The fixed sunroof with its two settings (clear or opaque) is also a lovely feature.

But on a whole, the GX 550's European rivals outclass it with their flashier cabins.

I'm going to sound like a bad football coach here, but the Ioniq 9 is a tale of two halves, at least when it comes to the exterior.

And I mean that literally. The front half is lovely, with a smooth, rounded nose, two stacks of LED lights that build the horizontal on top of the vertical and a clean, modern road presence.

The back half, however, isn't. It took me a while to put my finger on it, but it suddenly dawned on me that it gives off old-school station wagon vibes that, for me at least, don't gel with the rest of the design.

Inside, though, it is a complete picture, with my only complaint that the steering wheel feels a touch too big – though I like it's more minimalist design.

Elsewhere, the materials are lovely to look at and touch – even the dash panel insert that reminds me a bit of snakeskin pants – the seats are comfortable and the tech works well.

One word on the digital wing mirrors, though. They are one cost option I wouldn't be ticking the box for. I find them off-putting, not least because they seem to zoom-in so close to the car behind that you can almost see what part of the people behind's breakfast is residing between their teeth. It feels invasive.

Plus, all you're really doing is swapping a large mirror outside the car for a big screen inside it. Conventional mirrors for the win.

The cabin of the new GX 550 is fairly practical with plenty of head- and legroom in each row (yep, even the third!). When you first hop in, it can feel a big snug on elbow-room but this feeling quickly dissipates.

Despite a 215mm ground clearance, access is pretty good for the front and middle rows due to the wide door apertures and side-steps. Third row access is a bit awkward for an adult but my eight-year old loved scampering back there this week.

The electric front seats are comfortable with their extra functions and I like the way the massage feature extends to the seat cushion as it limits fatigue on longer journeys. However, you sit on top of them rather sink into them which makes it feel a little trucky at times.

The wide middle row has a bench seat that will be comfortable for kids but an adult might get a sore behind on a long trip. The transmission tunnel also compromises foot room for adults but the seat is wide enough to make use of all three top-tether anchor points (there are ISOFIX mounts too).

It was a little bit of an effort to lift my big booster seat into the back because the GX 550 sits so tall but otherwise, there's plenty of room around a child seat for them not to feel like a sardine.

Individual storage is made up of a glove box that fits an owner's manual, a small shelf in the dashboard and a middle console that doubles as a cool box (mini fridge) and can fit up to four cans or bottles in it.

Each row gets four drinkholders and two USB-C ports but the front also enjoys a 12-volt socket and wireless charging pad. There's a 220V domestic plug port in the boot for larger appliances, too.

It's sometimes awkward to use the wireless charging pad because it's easy for your phone to slide around on it and it quite often disengaged from charging.

My son enjoyed all of the other amenities in the middle row, like the reading lights, climate control, two USB-C ports and retractable sunblinds and I applaud carmakers when they position rear directional air vents in the pillars and/or roof. It just makes it so much easier to cool down sweaty kids!

The 14-inch multimedia display has clear graphics and a responsive touchscreen. The layout is easy enough to get used to after spending some time with it and the sat nav is simple to use.

I like that the sat nav directions can be pulled into the 12.3-inch digital instrument cluster and head-up display.

There is a Lexus connected services app, which you get a three-year subscription to. It's easy to connect to the wireless Apple CarPlay and there is also wireless Android Auto.

The system also has Bluetooth and digital radio, which is a delight to use through the 21-speaker Mark Levinson sound system.

The cabin is rounded out by the well-shaped boot which has a massive 1063L of capacity when the third-row is folded. That's been more than enough for my family's needs this week and my German Shepherd was pretty comfy back there, too. The powered tailgate has a kick-function and there is a full-size spare wheel underneath the car.

It’s a big unit, the Ioniq 9, measuring more than five metres long, just under two metres wide and around 1.8 metres high. Weight is a hefty 2.7 tonnes at its heaviest, too, while braked towing capacity is pegged at 2.5 tonnes.

So, big numbers and a big vehicle with big storage. With all three rows in place, you get 338 litres of boot space. But treat it like a five-seater and that increases to 908 litres. Drop both rows, and you’ll have a massive 2410 litres at your disposal.

The room in the middle row is ample for full-size adults, especially if you tick the box for the cushy six-seat layout, and the rear doors feel massive, so when opened you can step through to the third row with ease, too.

Once in there, you'll find an impressively luxe space. The room isn't ridiculous, but my 175cm got in easily enough, and then fit pretty easily, too. And the addition of USB charge ports, air vents, speakers and an automatic recline function for the third row will lift the mood for whoever you put back there.

So, we know it's not cheap, the Ioniq 9. In fact, it’s Hyundai’s most expensive car ever, outshining even the bonkers and brilliant Ioniq 5 N.

How much are we talking? Well, you can only get one Ioniq 9 — the flagship Calligraphy trim — and it’s yours for $119,750, before on-road costs.

There are just a couple of options from there, with the six-seat version an extra two thousand bucks, which I know sounds weird, to pay more for less, but you are essentially swapping the three-seat middle row for two more luxurious captain’s chairs. The digital side mirrors, which I hate, will cost you $3000, and matt paint will set you back $1000, or $250 more than the premium paint ask. Tick everything, and your Ioniq 9 is more like $125,000.

As to how many Hyundai will sell, suffice it to say the brand doesn’t expect it to be a huge contributor to its totals, acknowledging the EV market is stagnant and that most EV buyers are upgrading an electric vehicle, rather than stepping out of an ICE vehicle, which makes the purchase pool pretty shallow. Still, Hyundai is on track to sell around 150 of the six-figure Ioniq 5 Ns this year, so there are clearly some EV buyers with deep pockets.

Anyway, you get just about everything Hyundai can throw at a vehicle, including full LED lighting, 21-inch alloys, a big panoramic sunroof and a hands-free powered boot.

Inside, there are real Nappa leather seats, tri-zone climate, heated and ventilated seats in the first and second rows, a heated steering wheel and what Hyundai calls 'premium relaxation' seats up front.

There’s a big multimedia screen with Apple CarPlay and Android Auto, a digital dash and a head-up display, a 14-speaker Bose stereo and a total six USB connections. But no vehicle-to-load, which means you forgo the household-style power outlet found in some EVs.

There are also a couple of first for Hyundai, including the ability to load your digital key into your phone’s wallet, meaning you can unlock and drive just using your device, and it’s the first time Hyundai has deployed active noise cancellation, too.

All GX 550 grades share the same 3.5L V6 twin turbo-petrol engine which produces up to 260kW of power and 650Nm of torque.

This 4WD has high- and low-gearing, as well as a bunch of driving modes to suit most occasions, like 'Eco', 'Comfort', 'Sport' and 'Sport+'.

The 10-speed automatic transmission shifts through its gears smoothly and it always feels like it's engaged in the right gear. Which isn't always the case for a big SUV!

The Sports Luxury is fitted with a towing hitch and cover but unlike the base Sports grade which has a 3.5-tonne braked towing capacity, this model only has a 3130kg capacity which might not appeal to families with big toys to tow. 

There's only the one configuration available here, with Australia's Ioniq 9 a dual-motor AWD producing a combined 314kW and 700Nm – the latter ensuring this heavy EV never feels dull or sluggish.

Overseas, our powertrain is called the Ioniq 9 Performance, and it produces the fastest zero to 100km/h time of just 5.2 seconds.

I didn’t have high hopes for fuel economy because the official combined (urban/extra-urban cycle figure is a hefty 12.3L/100km but after mostly open-road driving, with some urban stuff mixed in, my real-world average came in at 11.8L.100km! This figure is based on my actual km travelled (358km) and litres of fuel used (42.41L).

While I’m surprised by the fuel usage result, I wouldn’t say this car has good fuel economy compared to its diesel-powered counterparts but it’s not terrible!

The GX 550 has a relatively small fuel tank compared to its Toyota cousins at 80L and based on the combined fuel cycle, you’ll get a theoretical driving range of up to 650km.

Not all that great. Not for a big family mover and not if you’re typically driving in the city, where fuel usage will be a lot higher.

The GX 550 only accepts premium unleaded petrol (95 RON), too.

The Hyundai Ioniq 9 is essentially sitting atop a massive 110.3kWh battery, which produces a claimed WLTP driving range of 600km.

Be warned, though, the digital dash has a live read out of your minimum and maximum driving range, presumably judged on your driving inputs, and there is a vast gap between the two numbers. In short, if you want to maximise range, go easy on the accelerator.

Its 800V architecture unlocks 233kW DC fast charging, which the brand says will take you from 10 to 80 per cent charged in 24 minutes.

Plugging in at home, though, will be much slower than that – something like 10 hours using 10.5kW wallbox.

Oh my goodness the Sports Luxury is a masterclass on 4WD refinement! You never feel the bulk or weight of this massive SUV when you’re driving it. The power delivery is effortless and there’s lots of grunt available when you hit hills.

The handling is also very good with responsive steering and enough road feedback as a driver to make you feel comfortable with what the car is doing. There is some roll in corners but it can tackle more corners at speed than I thought it would. 

The high driving position makes me feel like I can see a long way ahead yet while visibility is mostly good, it can be compromised when you have the side window shades and the third row headrests up. Which is why I love the digital rear view mirror.

Overall, ride comfort is good with forgiving suspension and low cabin noise, even at higher speeds. It’s pretty easy to chat with all rows and there’s not a lot of engine noise which adds to the refinement. I do like hearing a V6 rumble but that’s just a personal preference. 

I was a little worried about hitting my local Westfield car park but this is a nimble SUV to manoeuvre and parking it is a breeze with the 360-degree camera system and parking sensors. 

It's a proper surprise packet, the Ioniq 9, because you approach it with a pretty good idea of how a big, heavy and equipment-soaked seven-seat SUV is going to behave on a twisting road. Short answer? Not well.

But somehow, through some kind a wizardry, the opposite is true. Rather than feel stupendously big and heavy, the Ioniq 9 shrinks around you, feeling far smaller, more dynamic and more capable than you'd expect.

I'd maybe forgo the tightest of tight switchbacks in favour of more sweeping, undulating bends, but honestly, you can squeeze plenty of fun out of the Ioniq 9 on the right road.

Happily, it's no one-trick pony, either. It's quiet in the cabin, even at freeway speeds, it's comfortable in the city and there's plenty of space and tech on board.

The key take-away here is I like the way Ioniq 9 drives, another big vehicle helped massively by electric motors. Sometimes in big ICE-powered SUVs you can feel just how much work is going into getting them up and moving, but that's not the case here.

Instead, because there are no transmissions or turbochargers to deal with, the Ioniq delivers a rich flow of power and torque every time you push the accelerator. No lag, no whining, it just goes.

But here's the really interesting bit. It almost doesn't matter how good I say this car is, or how well I think it drives, this car will remain a niche seller. And Hyundai's executives seem to know it. And all of that's a shame, because it's really very good on the road, this Ioniq 9.

The Ioniq 9 is yet to be assessed by ANCAP, but the results will soon be published for its European test, and the result will be adopted here. Hyundai says it’s shooting for a maximum five stars.

Elsewhere, there are 10 airbags and just about every active safety system you can poke a stick at, all wrapped up in Hyundai’s 'SmartSense' suite of technologies, including the new-for-the-brand 'Highway Driving Assist 2', which acts as a lane-centre 'Smart Cruise Control' but that can also take evasive action should someone swerve into your lane.

Lexus offers the GX 550 with a five-year/unlimited km warranty, which is fairly standard compared to its Euro rivals.

You get five years capped-priced servicing which costs $5950 but the servicing schedule is a bit of a bear at every six months or 10,000km, whichever occurs first.

Five years with unlimited kilometres is still the underwhelming warranty norm at Hyundai. The battery is covered for eight years or 160,000km.

Happily, servicing is infrequent, with intervals pegged at two years or 30,000km. As a result, the first six years of servicing will cost a total $2005, or an average $334 per year.