Lexus LX vs Infiniti QX80

What's the difference?

The Lexus LX500d is a luxury seven-seat 4WD wagon with a big price-tag to match its full-to-bursting standard features list.

The interior is now more cool than cheesy and as a daily driver and long-distance tourer the LX500d offers very impressive levels of comfort and refinement – and it’s no posh pretender off-road either.

Sure, it’s much more of a city conveyance than a country wagon, but the LX500d is spot-on for those who have a premium SUV on their mind.

The petrol-only QX80, really a Y62 Patrol with shedloads of bling, is a curious beast; a big, bold status-boosting premium SUV, which is much better suited to the US and Middle East markets than ours. However, it has a real premium feel, is very smooth to drive and the exterior and interior changes have improved what has so far been a divisive model for a brand with a small but growing fanbase here. Infiniti sold 83 of the previous QX80 in 2017 and is hoping to move 100 of these new ones in 2018; they have their work cut out for them, but if brand confidence is worth a few sales, who knows, they might even top the ton.

The LX500d, in keeping with its positioning in the luxury slice of the market, is an imposing, premium-looking vehicle. 

Lexus puts the LX500d’s dimensions at 5100mm long (with a 2850mm wheelbase), 1990mm wide, and 1885mm high (1895mm in the Enhancement Pack-equipped LX500d). This is a big, classy SUV, inside and out, and it’s more than just a 300 Series LandCruiser in a shiny suit.

The optional 22-inch alloy wheels (part of the $5500 Enhancement Pack) add to the overall polished look. 

The interior is a classy mix of woodgrain trim, Hazel leather accents, soft-touch surfaces, Shimamoku ornamentation, plush but supportive seating, and even comfortable arm-rests.

The bulk of the facelifted QX80’s design changes have been to the exterior and include, most noticeably, new LED headlights with a redesigned, sleeker but more aggressive front end than its predecessor’s softer, more rounded curves.

The new QX80’s bonnet is 20mm higher than before and has been extended 90mm; the side steps have been stretched 20mm wider, and the power tailgate has been re-designed to include sharper, thinner, rear LED taillights and the bumper is visually wider.

The whole body has a higher visual centre of gravity, with this latest raft of design shifts giving the SUV a taller, broader, wider and more angular overall appearance.

The interior includes a bigger, chunkier redesigned centre and rear console and those aforementioned premium touches, such as leather-wrapped heated steering wheel, updated upholstery-stitching, semi-aniline quilted leather patterning on door panels and seats, as well as its stainless-steel sill plates, all add to the premium feel.

The QX80 looks better than it did but, as the previous one was pretty hard on the eyes, the 2018 version may still polarise opinion.

The cabin is a cavernous, plush space and driver and passengers are all generally well served in terms of practicality and comfort.

The tech is simple enough to locate and operate – it was easy enough to get Apple CarPlay working – and the screens are big: the horizontal 12.3-inch multimedia unit upfront, an 8.0-inch screen (to monitor air-con, adaptive air-suspension height, the 4WD system, and other vehicle information), a head-up display, plus a 7.0-inch touchscreen for rear passengers.

Heating and cooling are managed via the climate concierge and everyone can keep themselves as comfortably hot or cold as they like with separate controls.

Storage is only reasonable for such a voluminous interior with a variety of door pockets, cupholders (eight in total), glove box, a deep centre console (with multiple ways to open the lids) as well as map pockets for the second row, cup-holders in the centre fold-down armrest and cupholders for the third row.

The Lexus has a Qi wireless charger and front and rear USB-C charging ports – one up front, two in the second row, and two in the third row. 

There’s a 12V DC socket (front and rear) and a 220V socket in the rear cargo area.

Power-adjustable seats up front mean the driver and front passenger can dial-in their favourite seating position and these seats are very comfortable. Even the second row is plush, but the third row is not quite at that comfort level.

Second-row passengers have air con and entertainment controls, and an HDMI port.

The sunroof – an Enhancement Pack inclusion – is power-adjustable and allows plenty of natural light in through the top.

The Lexus LX500d has a claimed 174L (VDA) of cargo space when seven seats are in use; 982L when five seats are being used (that’s with each half of the power-folding third row stowed flat at the push of a button); and 1871L when all seats are stowed away (the 60:40 folding second-row seats tumble-fold forward), except for the driver and front passenger, of course. 

The tailgate has a foot-swipe-to-open sensor (part of the $5500 Enhancement Pack).

The QX80 is a big unit – 5340mm long (with a 3075mm wheelbase), 2265mm wide and 1945mm high – and, when you’re seated inside it, it feels like Infiniti designers and engineers must have worked hard to maximise the space afforded them for driver and passengers without seeming to have sacrificed any style or comfort.

And that big open space inside the cabin is easy to get comfortable in. There are soft-touch surfaces everywhere – door panels, arm rests, centre-console edging – and the seats are unsurprisingly soft and supportive but tend towards slippery when there are quick changes in speed or direction, or when tackling steep downhills off-road. (It was fun to watch front-seat passengers slip-slide around inside during the 4WD loop)

If you’re up-front you’re well catered for; big glovebox; overhead sunglasses storage; the centre console now has a roomy smartphone storage area; the twin cupholders have been upsized to cop two 1.3-litre cups with handles (up from one 1.3-litre cup and a 950ml container); the USB port has been moved to the other side of the centre console so it’s easier to get to; the storage area under the front passenger arm-rest is now a 5.4-litre compartment, able to hold up to three upright 1.0-litre bottles or tablet devices.

There are nine cupholders and two bottle-holders in total in the QX80.

There’s a sunroof if you get the urge for natural light from above.

Second-row passengers now get 8.0-inch entertainment screens (up from 7.0-inch) and two additional USB ports.

The tip-up second row seats are easy enough to operate and the third row is power 60/40 split-fold-to-flat and reclining.

The QX80 is available with both seven- and eight-seat configurations, with the back seat in a two- or three-seat formation.

There is a 12V outlet in the cargo area.

Pricing has not changed: there is one model and it still costs $110,900 before on-roads and that price does not include paint other than the standard Black Obsidian; metallic paint is $1500 extra. Changes over and above the previous model’s standard features list include 22-inch 18-spoke forged alloy wheels (up from 20-inch), Infiniti’s InTouch 8.0-inch colour touchscreen (up from 7.0-inch), new Espresso Burl coloured trim, new chrome finishes all-round, updated upholstery-stitching everywhere, quilted leather patterning on seats, new headlights, LED foglights and more. There is no Apple CarPlay or Android Auto.

The Lexus LX500d has a 3.3-litre V6 twin turbo-diesel engine, producing 227kW at 4000rpm and 700Nm between 1600-2600rpm.

It has a 10-speed automatic transmission with manual shift mode, a permanent all-wheel-drive system, low-range transfer case and a lockable centre diff. 

It also has six on-road drive modes – including Eco, Comfort, Normal, Sport S, Sport S+ and Custom – and off-road drive modes.

The V6 is an impressive fit in this behemoth, but even though this is a smooth-shifting SUV, there’s a leisurely, rather than lively, overall feel to how the engine and auto work together.

Because it is so hefty – with a listed 2690kg kerb weight – the Lexus does need a bit of heavy right boot to get going off the mark and during overtaking moves.

The previous generation’s 5.6-litre V8 petrol engine (298kW@5800rpm and 560Nm@4000rpm) remains, as does the seven-speed automatic transmission with adaptive shift control. It also has Infiniti’s all-mode 4WD system, which offers Auto, 4WD High and 4WD Low settings and it has terrain appropriate modes (sand, snow, rocks) able to be dialled in.

The Lexus LX500d seven-seater has a listed fuel consumption of 8.9L/100km on a combined cycle.

Our actual fuel consumption on this test, from pump to pump, was 12.2L/100km. Note: our test included a lot of low-range 4WDing. 

The LX500d has an 80-litre fuel tank – so, going by that on-test fuel consumption figure, you should be able to get a driving range of almost 656km from a full tank.

The QX80 is claimed to use 14.8L/100km. We reckon that fuel-consumption figure is very optimistic and if QX80 owners are partial to towing boats – as Infiniti reckons they are – or if they tackle some 4WDing, then that figure is going to climb much higher quite swiftly.

This Lexus feels tighter and better controlled than previous iterations on sealed surfaces, but it’s still a big rig so it’s no surprise when body roll continually creeps in, with this hefty SUV revealing wallowing tendencies even at optimal ride height. 

The suspension set-up – adjustable dampers, double wishbones at the front, a four-linkage rigid axle at the rear, stabiliser bars front and rear – irons out any major issues, but, even with consistent support from the adaptive variable suspension, it’s not perfect.

Steering is light and precise and adds to this posh 2690kg beast’s overall feeling of low-key composure.

This is a very nice cabin in which to spend time as NVH (noise, vibration and harshness) levels are kept to a minimum.

As mentioned earlier, the drive modes include normal, eco, sport and each adjusts throttle response, engine outputs, and gearshifts to suit the driver and the driving conditions.

Now for a few on-road niggles…

The brake pedals feel too spongy in their action – from stomp to stop – but the ventilated disc brakes front and rear do manage to wrench the Lexus to a controlled halt when needed.

The V6 and auto work well together, and though that transmission remains a smooth shifter, 10 gear ratios still seem like too many to me but, alas, that’s the way of the world.

To the off-road portion of this test…

The LX500d is a great open-road tourer but it does reveal some flaws when it comes to 4WDing – but more about those later.

As well as its robust mechanicals, the Lexus has off-road-capable Cruiser underpinnings with dirt-biased tech thrown into the mix as well. 

There’s plenty of glass around so driver-to-track visibility is fine, steering feels light but takes on a clinical precision during low-speed, low-range 4WDing.

And ‘clinical’ is exactly how the Lexus continues to feel off-road – with multi-terrain select driving modes offering auto, dirt, sand, mud, deep snow, and rock options; with a multi-terrain monitor and panoramic view helping you ‘see’ everywhere on the track; with active height control helping you to lift the vehicle’s body in order to improve off-road angles at the push of a button; and don’t forget about downhill assist control, hill-start assist, crawl control, and off-road traction control.

The danger is that – with so much tech working away at making everything so easy and safe – the driver feels completely removed from the off-road experience. The LX500d isn’t the only culprit, not by a long shot; most of the current crop of off-road vehicles are increasingly offering a sanitised, hyper-controlled version of 4WDing rather than the visceral experience many of us know and love. I’m old and grumpy, sue me.

Our test vehicle has all-season Dunlop Grandtrek 265/50R22 112V tyres, which are fine for sealed surfaces, but they’re not at all suited to the demands of low-range 4WDing in tough conditions, even more so on these 22-inch rims.

Unbraked towing capacity is 750kg, braked towing capacity is 3500kg. The LX500d has a gross vehicle mass (GVM) of 3280kg and a gross combination mass (GCM) of 6780kg.

It has a full-size spare tyre and that’s mounted under the rear cargo area.

In the world of luxury SUVs big is king and this thing is definitely on the chunky side of big, but it doesn’t often feel too cumbersome for its own good, or too bulky to steer in and out of Melbourne’s bustling morning traffic with precision.

During this event, we did a fair chunk of driving – highway, country roads, gravel roads and a decent bit of 4WDing – and, surprise, surprise, it did pretty well, especially when things of this ilk usually exhibit the ride and handling of an old poorly-sprung couch on wheels.

It did, however, feel top-heavy at times and revealed substantial body-roll when pushed around corners at speed or even during some sections of slow, bouncy off-roading, so I’d be reluctant to experience what it would be like without hydraulic body motion control. However, we were willing to forgive it any rocking-and-rolling when that healthy V8 growl kicked in as we gave it the boot.

The 22-inch tyre-and-wheel combination is not the way I’d go if I was going to use the QX80 for any off-road forays but, having said that, we did fine on them, at road tyre pressures, over a decent off-road loop.
It has 246mm of ground clearance and 24.2 (approach), 24.5 (departure) and 23.6 (ramp-over) angles.

The QX80 has coil springs all-round and it was only ever caught out when it thumped through a couple of surprise potholes along a dirt road.

This Infiniti model has a claimed tare mass of 2783kg, but you wouldn’t have known it was that many kegs because it powered up steep and slippery bush tracks, through deep muddy ruts, over greasy rocks and through a few knee-deep mud holes with ease. It was as easy as pulling up, switching your terrain modes and dialling in your setting: 4WD High, 4WD Low or Auto. It has a locking rear diff and very capable hill descent control, which we tested on a few rather steep sections of track.

It’s nice to see vehicle manufacturers unafraid to put their off-roaders, even their pricey luxury ones, through a decent off-road loop at launch because it shows they have confidence in its capabilities.

The QX80 has a maximum braked towing capacity is 3500kg and 750kg (unbraked).

The QX80 does not have an ANCAP safety rating. Safety tech as standard includes blind spot warning, intelligent parking system, forward emergency braking, lane departure prevention (incorporating lane departure warning), distance control assist and predictive forward collision warning, Infiniti/Patrol intelligent rear view mirror (which can display video from a camera mounted in the upper rear windshield) and more. It has two ISOFIX points in the second-row seats.

The Lexus LX500d has a five-year/unlimited-kilometre warranty.

Capped-price servicing applies for three years or 60,000km, whichever occurs the soonest. 

Service intervals are scheduled for every six months or 10,000km intervals with each appointment costing $495 a pop over that period.

Lexus Encore benefits – including a loan vehicle during services, service pick-up and return, as well as valet parking offers and fuel discounts – are standard for new Lexus owners.

It has a four year /100,00km warranty. Service intervals are scheduled at 12 months/10,000km. The total cost for three years is $1346.11 (GST included).