Lexus LX VS Mercedes-Benz GLS-Class
Lexus LX
Likes
- Refined
- Comfortable
- Off-road capable
Dislikes
- Hefty price
- 22-inch wheels
- Tyres not suited to 4WD touring
Mercedes-Benz GLS-Class
Likes
- Refinement
- Practicality
- Safety
Dislikes
- Modest steering feel
- So-so warranty
- Pricey servicing
Summary
Lexus LX
The Lexus LX line-up has a solid reputation as off-road vehicles and towing platforms.
And there’s plenty of excitement about the new-generation Lexus LX500d because it’s essentially a tarted-up version of the Toyota LandCruiser 300 Series – it’s built on the same platform as the 300 and even has that model’s 3.3-litre V6 twin-turbocharged diesel engine and 10-speed auto.
Sure, it’s not as tough looking as the new Prado-based Lexus GX, but if you like your off-roader with more than its fair share of posh trimmings then perhaps a Lexus LX500d is your cup of tea.
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However, with a price-tag topping out at more than $150,000, does this luxury 4WD wagon actually deserve your attention or should you look elsewhere?
Read on.
| Safety rating | — |
|---|---|
| Engine Type | 3.3L turbo |
| Fuel Type | Diesel |
| Fuel Efficiency | 8.9L/100km |
| Seating | 7 seats |
Mercedes-Benz GLS-Class
If you’re in the market for a full-size, seven-seat, luxury SUV you’re obviously living life large. Big family, lots of friends, dogs and cats, and heaps of activity - horses, boats, camping?
You’re not in the BIG big-buck orbit of the Bentley Bentayga, nor are you ready to plug into the electrified matrix with the Tesla Model X.
You’re aiming at a six-figure bullseye between $130,000 and around $150,000. On a three-year novated lease, somewhere around three grand a month.
Which takes in the chunky Lexus LX and German ‘Big Three’ - the Audi Q7, BMW X7, and this car, the new, third-generation, Mercedes-Benz GLS.
Mercedes-Benz Australia invited us to experience the car on a launch drive across city, suburban and rural roads.
| Safety rating | |
|---|---|
| Engine Type | 3.0L turbo |
| Fuel Type | Hybrid with Premium Unleaded |
| Fuel Efficiency | 9.2L/100km |
| Seating | 7 seats |
Verdict
Lexus LX7.5/10
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.
Mercedes-Benz GLS-Class8/10
The new GLS is everything you’d expect of a Mercedes-Benz with an S in its name. Luxury, performance, space, and in this case, thoughtful practicality. A super-capable, super-sized family truckster with the lot.
Design
Lexus LX
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.
Mercedes-Benz GLS-Class7/10
Launched globally in mid-2019, Merc describes the GLS as the S-Class of SUVs, which is apt given its 5.2m length, 2.5-tonne mass, and ultra-premium specification.
As mentioned, the GLS is big; a step up from the already substantial model it replaces. Built with the US market in mind, in fact it’s produced in Tuscaloosa, Alabama, it’s more than five metres long, close to two metres wide, and over 1.8m tall. And there’s more than three metres between the axles, a 60mm wheelbase increase over the previous model.
And despite the size of the canvas, the Benz design team has managed to make the GLS look like a modern Merc. Signature elements include obvious ones like the slatted grille with a couple of three-pointed stars on the nose.
But there’s also, the carefully chiselled twin ‘power dome’ bonnet, scowling LED headlights and vents to aid front brake cooling and smooth aero performance around the front of the car.
The big beast’s off-road intent is highlighted by extensions around the wheelarches, with big optional 22-inch rims sitting underneath. The fact they look right-sized for the car speaks volumes about its scale.
The racy AMG Line package is standard, and a recess and pronounced character line, tightening the lower waistline is a familiar Merc treatment, plus alloy roof rails toughen the look while dialling up practicality.
The rear is relatively simple, borderline generic, with tapered tail-lights offering the only strong whiff of design personality. But believe it or not, thanks to careful detail sculpting of the body, and smoothing underneath the car it boasts a drag figure of Cd 0.32. Outstanding aero performance for a large SUV.
The driver and front passenger are presented with a sweeping dashboard dominated by twin 12.3-inch digital screens, one primarily covering the instruments, and the central screen managing the MBUX media system, including audio, nav, phone integration, car set-up, and more, plus ‘Hey Mercedes’ voice control.
The overall feel is simple, and restrained, yet massively confident, with a subtle colour palette, large squared-off elements defined by brushed metal finishes, and an obvious, intense attention to detail, from the haptic controls to the beautifully finished, multi-function steering wheel.
And the standard Burmester audio system includes a two-way in-car communication function that subtly amplifies the driver and front passenger’s voices for those in the third row, and vice versa. Sheer genius.
Practicality
Lexus LX
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).
Mercedes-Benz GLS-Class9/10
Space is obviously a critical factor here, and no surprise there’s copious amounts of it inside the GLS.
Front seat passengers enjoy plenty of breathing room, without feeling remote from one another, and there’s lots of storage in the shape of a large lidded box/armrest between the seats, a decent glove box, two big cupholders and jumbo door pockets with room for large bottles.
There’s one data-enabled USB port in the front, two charge-ports in the second row, and four in the third row. Shouldn’t be any complaints about powering mobiles, tablets or games.
The second row feels every millimetre the SUV limo. Simply getting in and out is made easier because an auto lowering function drops the car 25mm when one of the doors is opened.
I was able to sit behind the driver’s seat set for my 183cm position with heaps of head and legroom on offer. And there’s an extra 10cm of electrically adjustable travel to play with if those in the third row agree.
The fold-down centre armrest features a lidded storage tray and twin pop-out cupholders. There are netted pockets on the front seatbacks, and again, the door bins are big enough for large drink bottles.
Three adults across the rear is a breeze, there’s climate control ventilation, and a huge glass sunroof is standard. Rather than asking ‘Are we there yet?’ the kids will be disappointed when you arrive!
Then there’s what the Cleary family refers to as ‘the way back seat.’ A pair of third row seats for the lucky kids that get to inhabit their own little world. Getting in and out is relatively civilised thanks to electric slide and tilt for the second row seats, and space is generous. I could sit comfortably, so the kids will be all smiles.
With all seats upright cargo capacity is enough for a seven-person day trip (355L VDA). Press the button to fold the 50/50 split-fold third row down and your options expand substantially (890L). And with 40/20/40 split-folding second row lowered, transportation of a full, three-ring circus is on the cards (2400L). Overall, more space than the arch enemy BMW X7.
Plus, the ability to lower the car 50mm thanks to the standard air suspension makes life even easier. And one button lowers the second and third rows at the same time.
The spare is a collapsible space-saver, and towing capacity for a braked trailer is 3500kg, with a tow ball weight of up to 140kg. The ESP system also features a trailer stabilisation function that counters oscillation with “braking intervention.”
Price and features
Lexus LX
The seven-seat LX500d is the base-spec in the three-variant diesel LX line-up – below the F Sport and Sports Luxury – but you wouldn’t know it from its price-tag.
The LX500d retails for $157,061 (excluding on-road costs), but our test vehicle has an optional Enhancement Pack (which includes 22-inch alloy wheels, sunroof, hands-free power tailgate with kick sensor, $5500) and has been fitted with a towing set-up (towbar etc, $1545 fitted) pushing its price up to $164,106 (excluding on-road costs).
As standard the LX500d features list includes a 12.3-inch multimedia touchscreen (with Apple CarPlay and Android Auto, and Bluetooth), a 25-speaker Mark Levinson sound system, heated and ventilated power-adjustable seats, woodgrain steering wheel trim, 8.0-inch multi-information driver display, four-zone climate control, 7.0-inch touchscreen and separate control panel for rear passengers, multi-terrain monitor with panoramic view, and 20-inch alloy wheels (but, as mentioned, our test vehicle has the Enhancement Pack with 22-inch alloy wheels).
It has a digital rear-view mirror, adaptive variable suspension with low, normal and two high settings, as well as full-time four-wheel drive, a low-range transfer case, locking centre differential, and a variety of driving modes (including off-road modes) and driver assistants.
Exterior paint choices include the no-extra-cost Onyx, or options such as Liquid Metal, White Nova (F Sport models only), Sonic Quartz (not available on F Sport models), Titanium, Graphite Black, and Khaki Metal (on our test vehicle), all of which incur an extra cost.
Mercedes-Benz GLS-Class8/10
The GLS launches in Australia with two models, the turbo-petrol GLS 450 4Matic at $146,500, before on-road costs, and the turbo-diesel GLS 400 d 4Matic at $153,300.
Specification is identical across the two variants, and when you’re competing against the likes of the Lexus LX570, Audi Q7 and BMW X7, as you might expect the list of standard features is lengthy.
Aside from the comprehensive suite of safety tech, covered in the Safety section below, the GLS equipment list includes, 21-inch alloy rims, adaptive high beam assist, air suspension, alloy roof rails, AMG body kit, a huge panoramic sliding glass sunroof, privacy glass from the B-pillar back, auto tailgate, keyless entry and start, rain-sensing wipers, cruise control, LED headlights, and power closing doors.
The power closing doors are a big plus for parents not wanting to disturb kids nodding off in the car, with the soft-touch function drawing the door in for the last few millimetres to an almost silent close.
Inside there’s ambient lighting (64 colours), strategically placed open pore oak wood trim, 13-speaker/590-watt Burmester surround sound audio, electric folding second and third row seats, a head-up display, ‘Mercedes-Benz’ branded illuminated sills, leather seat upholstery (‘Artico’ faux leather on the dash and doors), multi-adjustable electric seats in the front and second row (memory in the front), electrically adjustable steering column, leather-trimmed multi-function steering wheel, and five-zone climate control.
The multi-media system is spectacular, incorporating the twin 12.3-inch digital screens, the central media unit managing nav, digital radio, mobile device connectivity, Apple CarPlay and Android Auto, plus vehicle tracking. There are also remote vehicle status functions (door locking, valet parking, etc), global search (Amazon Alexa, Google Home, Yelp, and Trip Advisor), and a wireless device charging pad.
The basket of goodies can hold its head high in this part of the market, so the value equation stacks up well.
Under the bonnet
Lexus LX
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.
Mercedes-Benz GLS-Class8/10
There are two engines on offer. The 3.0-litre (M256) in-line six-cylinder turbo-petrol GLS 450 4Matic, and the 2.9-litre (OM656) in-line six-cylinder turbo-diesel GLS 400 d 4Matic.
The all-alloy, twin-scroll single-turbo petrol engine delivers peak power of 270kW from 5500-6100rpm, and maximum torque of 500Nm across a broad plateau from 1600-4500rpm. It also features a 48-volt electrical system driving the ‘EQ Boost’ set-up, able to deliver an extra 16kW/250Nm for short periods. The integrated starter-generator also enables energy recuperation.
Although the all-alloy, twin-turbo diesel features variable valve lift it gives some ground on power, offering up 243kW between 3600-4000rpm, but torque is a solid whack, with 700Nm on tap from 1200-3000rpm. Worth noting, that to minimise emissions this engine features a “selective catalytic reduction converter” in the exhaust, which brings with it the use of an ‘AdBlue’ reducing agent. The separate AdBlue tank has a capacity of 31.6 litres.
The nine-speed auto transmission is the same in both versions, although the diesel has a slightly lower final drive ratio.
Efficiency
Lexus LX
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.
Mercedes-Benz GLS-Class8/10
Claimed fuel economy for the combined (ADR 81/02 - urban, extra-urban) cycle for the GLS 450 is 9.2L/100km, the more frugal GLS 400 d trimming that to 7.7L/100km. The petrol 450 emits 210g/km of CO2 in the process, the diesel 400d dropping that slightly to 202g/km.
Stop-start is standard, you’re looking at premium unleaded for the 450 GLS, and you’ll need 90 litres of dinosaur juice to full the tank on both models.
Driving
Lexus LX
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.
Mercedes-Benz GLS-Class7/10
Merc claims the GLS 450 will sprint from 0-100km/h in 6.2sec, and the 400 d in 6.3sec. Not hanging around for a 2.5 tonne mothership. But the standout is the 400 d’s torque. All 700Nm of it available from just 1200rpm to 3000rpm; right in the mid-range sweet spot.
The nine-speed auto transmission is smooth yet responsive, with paddles on the wheel for manual shifts when you want to pick the ratio. The combination of effortless grunt and the nine-speeder keeping things on the boil is an impressive one.
Suspension is by double wishbones at the front and multi-links at the rear, and while you can feel the weight in cornering, the standard Airmatic air suspension (which does away with steel springs) is superb in terms of ride comfort and body control.
We took a deep breath and pushed enthusiastically through a series of sweeping corners and the fat (285/45 fr - 325/40 rr) Continental ‘PremiumContact 6’ rubber wrapped around our car’s (optional) 22-inch rims gripped hard.
The ‘4Matic’ all-wheel drive system also seamlessly shuffles torque between the front and rear axles (theoretically up to 100 per cent in each direction).
Merc has put extra focus on body rigidity, the tuning of engine and suspension mounts, and sound absorption, and it shows. The GLS 400 d is beautifully refined on the highway. A neat touch is the car automatically lowering 15mm at motorway speeds or when ‘Sport’ mode is selected.
Steering is electromechanically assisted, and Merc says the front suspension geometry has been revised to minimise vibration through the wheel. And yes, feedback is minimal, but unfortunately so is road feel with only a general connection between your hands on the wheel and the front tyres on the bitumen.
When you’re steering a large beast like this, often with something substantial hitched to the back, you want to know braking performance is up to the task, and the GLS’s big ventilated discs all around deliver reassuringly strong stopping power, with nice, progressive pedal feel to boot.
The seats are adjustable six ways to Sunday, but beyond that they’re comfortable and supportive, even over long stints behind the wheel.
We stayed on the bitumen, because, let’s face it, that’s where this car will spend 99.9 per cent of its time, with the exceptions of the boat ramp, a ski weekend or pony club.
For those special occasions the optional ‘Off-road engineering package’ adds a low-range transfer case, inter-axle locking, hill descent control, and under body armour for more serious work.
Safety
Lexus LX
The Lexus does not have an ANCAP safety rating as it has not been tested.
Safety features include 10 airbags (driver and front passenger: front, knee, side; rear: side), AEB with pedestrian detection and daytime cyclist detection, front and rear parking sensors, reversing camera with rear camera washer, adaptive cruise control, road sign assist, blind spot monitor with rear cross traffic alert, tyre pressure warning system, and more.
Mercedes-Benz GLS-Class10/10
At the time of this launch drive the GLS hadn’t been safety assessed by ANCAP, but you could make a small wager, like every penny you have to your name, that it will score a maximum five stars.
The expected active features are there, including ABS, ASR, and ESP, with additional tech including ‘Active Blind-Spot Assist’, ‘Active Brake Assist' (Merc-speak for AEB), active lane keeping and lane change assist, ‘Adaptive Brake’, ‘Attention Assist’, ‘Evasive Steering Assist’, ‘Parktronic’ (active parking assist with 360-degre camera), rear cross-traffic alert, traffic sign assist, and a tyre pressure warning system.
Then, if all that isn’t enough to avoid an impact the GLS is equipped with nine airbags (front and pelvis side for driver and front passenger, side for outer rear seat occupants, full-length curtain, and a driver’s knee bag), an active bonnet to minimise pedestrian injuries, and the ‘Pre-Safe Plus’ (flashes rear hazards to warn drivers closing too quickly from behind, tightening the belts at the same time, and locking the brakes if the GLS is stationary with a rear impact imminent).
Ownership
Lexus LX
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.
Mercedes-Benz GLS-Class7/10
The Mercedes-Benz range is covered by a three year/unlimited km warranty, which, like Audi and BMW continues to lag behind the mainstream market where the majority of players are now at five years/unlimited km, with some at seven years.
On the upside, Mercedes-Benz ‘Road Care’ roadside assistance is included in the deal for three years.
Service is scheduled for 12 months/25,000km (whichever comes first) with pricing available on an 'Up-front' or 'Pay-as-you-go' basis.
As a guide, service pricing for the outgoing GLS is set at $2600 per service (up-front) and $3250 (PAYG), a saving of $650 a pop. Fourth and fifth services are also available for pre-purchase ($3550 and $4900).