Nissan Z vs Lexus Gx550

What's the difference?

The Nismo turns up the wick just enough to justify its $20K premium over the brilliant regular Z.

Visual changes inside and out are one thing, but with tangible boosts in performance, handling and braking – with no detriment to ride quality or comfort – as a result of properly engineered upgrades, the RZ34 version deserves its place in Nissan’s sports car hall of fame.

Note, though, that good as it is, the Nismo is also a potent reminder of how solid a foundation the standard Z also is… especially in manual gearbox guise.

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.

Reinterpreting a classic via retro styling isn’t always successful – hello, 2001 Ford Thunderbird ­– but what Nissan has achieved with the RZ34, given it’s a pastiche of several Z greatest hits from the ‘70s, ‘80s, ‘90s and today, is truly masterful design.

Take the cab-backward silhouette, long nose and short wheelbase; it somehow manages to deftly capture the spirit of previous Z generations, without looking like a bad caricature.

Points especially go to the stunning nose and tail treatments that evoke both the ‘70s 240/260/280 as well as the sadly long-forgotten Mid-4 II concept car of 1987.

Slightly longer than the regular model, the Nismo’s nose is meant to evoke the early ‘70s Japan domestic market Fairlady ZG, with the G denoting “Grand Nose”. Fun fact: Fairlady first appeared on the 1960 Datsun roadster as deference to the Broadway musical (and later Audrey Hepburn film, presumably) ‘My Fair Lady’.

Anyway, besides scraping speed humps and driveways, the Nismo’s elongated front bumper promotes improved engine cooling and better aero flow, as do the side sills, larger wraparound three-piece spoiler and redesigned rear bumper/diffuser. The wider-yet-lighter back wheels are 10mm wider. And a glossy red stripe runs along the underside like Anna Nicole Smith’s lipstick.

Does it all look better than the simpler, purer regular Z? No. But they perform better. And isn’t that the point of a Nismo?

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.

So, just as the exterior is an anthology of past Z car stylings, the same also applies inside.

A mishmash of new and old as well, they also marry together harmoniously – after you’ve bent and contorted yourself inside nice and snug, on the racy yet not-too-unforgiving set of Recaro bucket seats.

The Z’s signature sloping roof and rising window line; a trio of dials that have been a hallmark of the series since the 240Z, a thin three-spoke steering wheel; a physical hand brake and a pair of old-school seat base angle adjuster knobs just like in sports cars from 20 years ago betray the Nissan’s ageing DNA.

But they set the mood, like hearing a favourite old track, though one remixed by a contemporary DJ to a modern beat.

Which means that you’ll be able to view whichever artist you like through the 8.0-inch touchscreen, either via Bluetooth audio streaming, Spotify or some such app.

Easy to decipher and simple to navigate (though no imbedded GPS is fitted), the Z’s dashboard also offers the essential surround-view parking camera (given how limited vision is as you’re sat so low with not much glass to peer out through), amongst a host of vehicle functions. You’re also privy to extremely useful blind-spot alert thoughtfully placed inside the car by the mirror mounts, four cupholders if you count the door-sited ones and surprisingly generous storage. Practicality, thy name is Fairlady.

For lightness and sensible packaging, we understand why Nissan’s sports coupe is strictly a two-seater proposition – and certainly a roomy enough one for the lucky pair at that.

However, it’s a shame Nissan doesn’t offer a 2+2-seater option in the form of a pair of occasional jump seats behind, as per the old Datsun days, as there seems to be just enough space for smaller folk – though as a pair of shelves, that area did prove very useful during our week with the Nismo.

Issues? Along with a sheer lack of grace entering and exiting the Z, poor overall vision and 350Z-era switchgear that are now old enough to drive themselves, finding the right driving position eluded this particular 178cm tester. The seats do a great job keeping you firmly fixed in place, and of course the wheel tilts and telescopes, but those pair of knobs were forever being twirled and fiddled with.

Oh, and simultaneously unlocking and opening the doors was also confounding, due to exterior door handles and pressure sensor not designed for Homo Sapien hands.

Further back, and as in the two previous generations Zeds, a brace bisects the luggage area. Rated at 241 litres VDA, it is wide and flat but a wee bit shallow. At least it adds another level of practicality and is big enough for those weekends away.

There’s no cover (though seeing what’s inside isn’t easy) and no spare wheel of any size is fitted.

Meanwhile, on the other side of the Nismo…

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.

The Lexus GX 550 shares the same platform as the recently introduced Toyota Prado but both models are now based on the same 'body-on-frame' platform shared by the beastie Toyota LandCruiser 300 Series. So it's bigger and features a more rigid chassis than before.

Surprisingly, that hasn't translated to a massive price tag for the GX 550 and you can pick up the flagship grade on test for this review for $128,200, MSRP.

Which sounds inexpensive when you compare it to the BMW X7 xDrive 40i M Sport which is priced from $171,300 MSRP but the Land Rover Defender 110 P400 X-Dynamic HSE is a lot closer at $128,815 MSRP.

The only issue here is that shared platform, because while they don't share the same powertrain, the flagship Toyota Prado Kakadu ($99,990 MSRP) is still almost $30K more affordable and boasts a similar equipment list. So, ask yourself, is it the brand and engine you're after or the new good looks?

The standard equipment is well-rounded with a 14-inch touchscreen media display with satellite navigation and wireless Apple CarPlay and Android Auto.

A fully digital 12.3-inch instrument cluster, colour head-up display, three-zone climate control and a 21-speaker Mark Levinson sound system round out multimedia requirements.

Other technology includes a digital rear view mirror, two USB-C ports in each row, a 12-volt socket, a 220-volt domestic outlet and a wireless charging pad.

There are two particularly handy features for families, the 'cool box' (basically a mini fridge) middle console and rear retractable sun-blinds.

The fixed panoramic sunroof features two settings allowing you to make it clear or opaque. The electric front seats feature heat, ventilation and massage functions and the rear outboard seats are heated as well. The third row electrically adjusts and there are multiple buttons throughout the car to access this feature.

Upgraded leather-accented upholstery is standard in the flagship grade and is available in three combinations. The Sports Luxury also features 22-inch alloy wheels, a full-size spare wheel and a powered tailgate with kick-function.

Nissan sure knows how to make a great six-cylinder engine.

The Nismo’s internal combustion engine in question is the VR30DDTT – a twin-turbo V6 making four per cent more power and around 10 per cent more torque compared to the one found in the regular Z.

Power jumps 11kW and torque a handier 45Nm to 309kW @ 6400rpm and 520Nm between 2000rpm and 5200rpm respectively, providing extra punch as well as a slightly superior power-to-weight ratio of around 184kW per tonne.

That’s up 2kW/tonne, despite the Nismo gaining around 50 kilos, to 1680kg.

This has been possible thanks to extra turbo boost, revised ignition timing, improved cooling systems and updated engine management software.

Driving the rear wheels is a Mercedes-Benz based nine-speed torque-converter auto. Upgraded and retuned for track use, it includes a Sport+ mode providing speedier shift responses. Aided by the new launch control function, we managed a tidy 4.5 seconds from standstill to 100km/h.

Sadly, though, there’s no manual option as per the regular Z.

What else is unique here? Underneath, the platform might date all the way back to the 350Z of 2003, but Nismo has really worked some of its magic.

Along with the retuned dampers, everything else has been stiffened up – including the anti-roll bars, springs, bushes and even the steering rack mounts – to help deliver more controlled and linear steering. There’s extra underfloor bracing at the front, centre and rear of the car, thicker brake rotors and model-specific Dunlop SP Sport Maxx GT600 tyres that are wider at the back, on gloss-black RAYS alloys.

Continuing to use a double-wishbone front and multi-link rear suspension set-up, the Z’s front/rear weight distribution is 56/44 front/rear.

Now, the Nismo was our favourite version of the previous 370Z by some margin. How does it all square up in RZ34 guise?

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. 

Not surprisingly, the Z Nismo needs to drink from the 98 RON premium unleaded petrol fountain.

Nissan reckons owners should expect to average 10.4L/100km (for 242 grams per kilometre of carbon dioxide emissions) on the combined cycle (and 15.0 and 7.7 L/100km for the urban and extra-urban ratings respectively.

This figure is almost half a litre worse than the non-Nismo Z’s 9.8L/100km result, but still substantially better than the six-speed manual base grade’s 10.8L, despite the latter being some 33kg lighter.

With a sizeable 62L tank, you might be able to average just under 600km between refills.

For the record, we achieved 11.9 litres per 100km in a mix of urban, freeway and performance driving which is not too bad at all given how often we fanged this thing.

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.

Nissan does plenty of things really well, and the Nismo is no exception.

Firing up the VR30DDTT 3.0-litre twin-turbo V6 is also a reminder of how brilliant the brand’s six-cylinder engines are. They tingle all the right sensory areas, starting with the baritone rumble at idle.

What a portent of what’s to come!

Nismo’s massaging of the engine, combined with upgraded clutch packs and a retune of the nine-speed auto’s software, results in stronger, hungrier and angrier acceleration, no matter which of the three driving modes you’ve selected. Even in Normal, the Nissan leaps off the line. In Sport, its appetite for speed is palpable. In Sport+, this thing is eating up the tarmac. Somehow, in an EV era where 4.5s to 100 is ho-hum, the (electronically enhanced but who cares) guttural exhaust bellow seems to amplify the action and thrills.

And spills. For five of our seven days together, the heavens poured. Now, in Normal mode, the Nismo was as benign and controlled as you’d hope in wet conditions, the driver-assist tech metering out just enough torque and braking to seamlessly keep the car humming along. Ever-present but always nuanced, they’ll help make your commute a safer and more relaxing one.

Selecting Sport loosened things up markedly, with the driver needing to be ready to counteract with steering, seating and throttle, though still with a safety net to keep the car from going totally out of whack; Sport+, meanwhile, is not for amateurs or the distracted. This is serious, tail-wagging waywardness that should only be fully explored with experience and care.

Later in the week, Launch Mode in Sport+ on cold but dry bitumen also requires super concentration, as we discovered attempting to extract the fastest acceleration time. Sideways in a straight line at 100km/h-plus is not for the faint hearted.

Beyond all-out performance and drama, the Nismo soars with weighty yet linear and precise steering, resulting in satisfying, hunkered-down handling that is the hallmark of a great sports car. Really tight turns can be taken at impressive speeds, but there’s about 1.7 tonne of muscle to manipulate, so the real fun can be found blasting along a snaking set of more open corners, where the Z’s inherent thrust, poise and grip come into play, all to the symphony of that bi-turbo V6.

That the suspension can feel both firm and supple at the same time is another arrow in the Nismo’s bow.

Nissan isn’t pretending this is anything but a rousing and rapid grand tourer with track aspirations, so the fact there’s also comfort and sophistication to be enjoyed just shows the sheer bandwidth of this particular Z.

Downsides? There’s always a wall of sound, be it mechanical or noise intrusion from the rubber and/or bitumen. The Nismo is rarely quiet. The extended front spoiler seems to summon up speed humps and bumps you never knew existed. The adaptive cruise control’s inability to resume in heavy stop/start traffic betrays this car’s 350Z-era tech. And the lack of a manual transmission, we reckon, is a missed opportunity for an even greater degree of interactive sports car driving.

Still, the Nismo delivers exactly what the brand promises, and continues to improve a firm favourite for speed and drama.

But the gap between Nismo and regular model is smaller than the one that existed in the preceding 370Z, which means that – if $100K driveaway is too steep – you’re already driving something elevated in the standard Z. Particularly if you yearn for a manual.

It’s all good.

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. 

The new GX 550 hasn’t been tested by ANCAP and is unrated but its cousin, the Toyota Prado, which shares the same platform just achieved a maximum five-star rating from assessment in 2024. It's fair to expect a good result for this model.

Overall, the Sports Luxury has a long list of standard safety equipment and features nine airbags which is good for a family SUV. 

Safety equipment includes adaptive cruise control, lane departure alert, lane keeping aid, traffic sign recognition, emergency steering assist, driver monitoring, safe exit assist, emergency call functionality, blind-spot monitoring, rear cross-traffic alert and tyre pressure monitoring.

The GX 550 has autonomous emergency braking (AEB) with pedestrian, cyclist, motorcyclist and junction turning assist.

Your wallet’s pretty secure as well.

Like all Zs, the Nismo is subject to a warranty period of five years with unlimited kilometres, while service intervals are fixed at every 12 months or 10,000km – whichever occurs first. There is also five years of roadside assistance.

Nissan also provides pre-paid maintenance plans that can save up to $245 over three years, as well as capped-price servicing. At the time of publishing, the capped-price service appointments cost between $347 and $950 depending on the year of ownership.

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.