Isuzu MU-X vs Lexus LBX

What's the difference?

The MU-X has plenty of appeal as a daily driver – dependable and it’s a proven 4WD wagon.

Does the 2.2-litre engine add anything substantial to the mix?

Well, it's better than the 1.9-litre, that's for sure, and there's a lot to like about this MU-X in terms of its off-road capability, driver-assist tech, standard features and all-round driveability. And, while the LS-T lacks the top-shelf polish of the X-Terrain, it’s still an appealing potential purchase.

But the 3.0-litre option is better because while the 2.2L is very effective off-road and general day-to-day driving, it lacks grunt and has to work that much harder and is that much noisier under load than the 3.0-litre in most driving scenarios, including 4WDing.

Lexus has managed to combine two cars in one. A fast, impossibly fun back-road blaster perfect for weekends on your favourite winding roads, and a competent, compact city SUV that will easily handle urban runabout duties every day of the week.

It’s this duality that struck me the most. I would happily live with the Lexus LBX Morizo RR. 

If you need a bit of space, maybe look elsewhere. But if you’re passionate about dynamic driving, and value comfort and a premium experience, this little rocket is hard to beat.

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

In terms of appearance, the MU-X remains largely unchanged from the most recent iteration. And that’s a good thing. It’s blocky enough to be recognisable but sleek enough to remain inoffensive. Worth noting the door handles, window trims, front fender accents, roof rails, and side steps on the LS-T are gloss black.

Inside, nothing much has changed (other than a newly-introduced idle start/stop button) and, as such, the MU-X retains a low-key familiarity that makes it a comfortable space. Generally, design-wise, the MU-X more than holds its own against the likes of the Toyota LandCruiser Prado and Ford Everest.

The regular LBX is a spunky little car with a lot of road presence. I’ve been a fan of the exterior design since first seeing one in the metal. Short overhangs, nuggety proportions, well designed tail-lights and a pert rear end - it all works for me.

For the Morizo RR, Lexus has wisely exercised some restraint when it comes to exterior flourishes. It is nowhere near as wildly styled as the Yaris GR, for example. And that makes sense. This is, after all, a Lexus. 

It’s a smart move, too. It’s subtle but still has intent. 

The Morizo RR gains styling tweaks unique to the grade including 19-inch forged aluminium wheels, red brake calipers, a different front and rear bumper design, a rear spoiler, air intakes front and rear and a dual exhaust.

Inside, the main differences are the inclusion of red stitching, sports seats, some unique inserts, and the use of synthetic suede on the centre console, dash and doors.

The LBX interior design is functional and premium with nice materials throughout. 

The interior has a familiar and practical feel about it and the cabin is an easy space in which to become comfortable. Controls are easy to locate and operate and charging options are numerous – a mix of USB-A, USB-C (front and second row) and 12V.

Storage places include recesses for the bits and pieces from your pockets, a deep-ish centre console, as well as dual cupholders up front, cupholders in the rear fold-down centre armrest and bottle holders in the doors. There are also cupholders either side of the third row.

The MU-X has physical-button options to activate some functions (including to switch on the audio system, to adjust volume and access sat nav).

Seats are comfortable and supportive through all three rows – yes, even the third row is roomy enough to prevent whining from whoever is back there.

My camera guru/photographer/sergeant-at-arms, Glen Sullivan, reminded me that the third-row seats don’t have ISOFIX or top-tether points for child seats. Thanks, mate.

The cargo area is 311 litres with all three rows in use, 1119L with the third row flat and 2138L with the second and third rows stowed away.

The rear cargo area has a cargo cover, tie-down points, a 12V power outlet, a storage space under the rear cargo area floor and a space for tools inside the driver’s side rear cargo wall. The MU-X’s full-size spare (bravo!) is attached to its undercarriage.

The LBX is a compact little SUV so if you’re after something to fit a family of four, look elsewhere. But if you don’t need the space, it’s a great city car.

Up front it’s easy to find the right driving position thanks to all of the adjustability of the seat and steering wheel.

Those sports seats are supportive and hug the body, but not too much as some of Lexus’ European rivals do. They’re also very comfortable - almost edging firm but never uncomfortable.

The Lexus multimedia system is functional and has an easy-to-navigate menu set-up, but lacks any pizzazz. Better graphics would help with engagement.

Storage wise, there’s a wireless charger slot at the bottom of the centre stack, a cupholder with a narrow slot for another device next to it, and a deep but narrow secure central storage bin with another cupholder.

You might not fit big bottles into the door bins as it’s pretty tight.

I wasn’t sure about Lexus’ one-touch interior and exterior door handles when they first rolled them out, but I now think it adds a classy point of difference to its rivals.

That second seating row is tight, especially for taller folk. I had just enough legroom (but plenty of toe room) sitting behind my 183cm (6'0") driving position, but I wouldn’t want to sit back there for a long road trip. Headroom, however, is ample. My noggin didn’t even scrape the headliner. You’d struggle to fit three adults back there but a couple of kids should be fine.

Amenities include a pair of USB-C ports and two map pockets, but the rear row lacks any adjustable air vents or a fold-down centre arm rest. And the bottle holders in the rear doors won’t fit much at all. 

The rear row folds 60/40 and if you need to haul lots of luggage or shopping, you’ll definitely need to lower that rear row because the boot is small.

Lexus says it can swallow 266 litres, which is tight. There’s no spare wheel of any kind, just a tyre repair kit.

The regular Lexus LBX line-up consists of three hybrid grades (Luxury FWD, Sports Luxury FWD and AWD) running from $47,550 to $56,990, before on-road costs.

Naturally the Morizo RR takes its place as the flagship of the LBX line-up and is priced accordingly. It will cost you $76,490 which is close to $20K more than the entry grade.

Purely looking at SUVs, rivals could include the BMW X1 M35i ($92,300) or Volkswagen T-Roc R ($64,290), while performance hatchback competitors might include the Mercedes-AMG A35 ($87,900) or VW Golf R ($70,990). Either way, the Lexus sits somewhere between the two, but closer in price to the VWs.

There are other offerings that cost quite a bit more than the Lexus.

For that money you get leather-accented sports seats, aluminium pedal trims, 19-inch forged alloy wheels, a 9.8-inch multimedia touchscreen, wireless Apple CarPlay and Android Auto, sat nav, a 12.3-inch digital driver display, dual-zone climate control, a powered tailgate and heated front seats. 

Other gear includes a 13-speaker Mark Levinson premium audio system (with a sub-woofer), five USB-C ports, access to 'Lexus Connected Services', synthetic suede trim, auto power-folding and dimming exterior mirrors, an auto-dimming interior rear view mirror, eight-way power driver’s seat adjustment, rain-sensing wipers and keyless entry and start.

Two-tone paint will set you back an extra $1750.

On top of the long safety features list (see the Safety section), there’s nothing obvious missing from the features list. Lexus has always offered sharp value-for-money and that remains the case with the Morizo RR.

This MU-X has a 2.2-litre, four-cylinder, turbo-diesel engine, producing 120kW at 3600rpm and 400Nm between 1600-2400rpm and it’s matched to an eight-speed automatic transmission.

Worth noting the 3.0L MU-X has a six-speed auto and produces 140kW (at 3600rpm) and 450Nm (1600-2600rpm) while the outgoing 1.9L MU-X has a six-speed auto and produces 110kW (3600rpm) and 350Nm (1800-2600rpm).

While the 3.0-litre has always been unstressed in most driving scenarios – even low-range 4WDing – the 2.2-litre feels underpowered. More about that in the ‘Driving’ section below.

The MU-X has a part-time 4WD system which includes a dual-range transfer case (with high- and low-range 4WD) and a rear diff-lock. The driver is able to shift from 2H (two-wheel drive, high-range) to 4H (4WD high-range) while on the move up to speeds of 100km/h. The diff-lock may only be engaged when the vehicle is in 4L (4WD low-range).

The MU-X also has a switchable terrain mode system which tweaks the engine, transmission and traction control to suit the driving conditions. 'Rough Terrain' mode, like a steroids-enhanced off-road traction control, is king of these modes when you’re off the bitumin.

Powering the LBX Morizo RR is an excellent 1.6-litre turbocharged three-cylinder petrol engine, which is the same unit found in the Toyota GR Corolla and Yaris hot hatches.

The Lexus loses some power and torque compared with those models so the outputs are 206kW and 390Nm. The Toyota cousins offer 221kW/400Nm each.

This engine is paired with an eight-speed torque converter automatic transmission and it has electrically controlled all-wheel drive with a Torsen limited-slip differential.

You can race from zero to 100km/h in just 5.2 seconds.

Official combined cycle (urban/extra-urban) fuel consumption for this MU-X is 6.7L/100km. The 1.9L MU-X offers 7.4L/100km while the 3.0L offers 7.6L/100km.

Actual fuel consumption on this test was 8.7L/100km.

The MU-X 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 about 920km. But remember, your fuel consumption may be completely different to mine because chances are you'll have friends, family pets, sporting equipment, camping gear, the whole kit and caboodle on board. I've only been carrying vehicle recovery gear, MaxTrax, and a first-aid kit, so I haven't had a huge amount of weight on board.

While the hybrid versions of the LBX are known for their fuel efficiency, it’s less of a focus for the Morizo RR performance model.

It has an official combined (urban/extra-urban cycle) fuel figure of 9.2 litres per 100 kilometres, which is more than twice the figure of the hybrid.

CO2 emissions sit at 209g/km and the LBX has a 50-litre fuel tank. You will need to fill up on the expensive stuff though as the Morizo RR requires 98 RON fuel. Theoretical range between fills is around 540km.

Before we launch into the off-roading section of this test, it’s worth noting the MU-X has always been decent on-road; composed, reasonably refined (for a 4WD wagon, anyway) and comfortable. And thankfully, with the 2.2-litre engine, not all of those characteristics have been thrown out the window.

It is quite noisy, especially under pressure when you have to do some heavy acceleration or when you have a bit of gear on board. When it has to work that bit harder than it usually does, it can become quite noisy. Admittedly, the 3.0-litre MU-X is also quite gruff, but there's an edge to the roughness in the 2.2-litre that is very noticeable on road.

This MU-X is quite sluggish off the mark, exhibiting a disconcerting lag under heavy throttle from a standing-start. And it’s far from the most dynamic vehicle to drive. But it has a tractability about it that manages to mostly negate these flaws.

Otherwise, the new eight-speed auto deserves credit as it’s slick and smooth in application and feels right at home in this wagon.

Now to off-roading. The MU-X is still very capable. In fact, even with the 2.2-litre engine, it remains one of the better-performing 4WD wagons straight out of the dealership, in terms of pure off-road capability.

The 3.0-litre MU-X is not the torquiest in this segment, but it offers ample pulling power available across a wide rev range – count on peak torque between 1600rpm and 2400rpm – and it delivers that pulling power in an even-handed fashion. The 2.2-litre MU-X has to work harder than its stablemate, and it’s noisier and harsher.

However, those characteristics don’t take away from how effective this MU-X is because it offers impressive off-road performance. It still has a decent amount of low- and mid-range torque, which makes dirt-road cruising and low-speed 4WDing easy.

The MU-X has part-time 4WD with high- and low-range 4WD gearing, a rear diff lock and overall it retains all of that off-road capability the 3.0-litre MU-X has been renowned for – so you don't lose any efficacy there.

The line-up’s off-road traction control system, which once was a bit patchy in its effectiveness, has gone through a couple of phases and it’s been recalibrated/tweaked over the years and it is much better now.

Of course, the MU-X also has Isuzu’s much-vaunted Rough Terrain mode (a form of early-acting off-road traction control which converts lost grip into torque for the wheels with grip), and it is smooth and effective, giving the driver better overall control in challenging terrain.

Some of this MU-X’s listed off-road angles appear shallower than the 3.0-litre MU-X’s – approach: 23.9 (3.0L = 29.2), departure: 26.4 (3.0L = 26.4) and ramp-over: 19.6 (3.0L = 23.1) – but, even if that is the case, it has very similar driving characteristics in low-speed, low-range four-wheel driving to its 3.0-litre stablemate.

If you drive with control and consideration, you shouldn't have any trouble tackling light to moderate 4WDing in this MU-X. It could even, if push comes to shove, handle challenges that may be considered by some to be on the edge of hard-core 4WDing – for a showroom-standard 4WD wagon anyway.

Ground clearance is 235mm and wading depth is 800mm, so there’s an adequate amount of clearance to work.

The MU-X – with a turning circle of 11.6m and a kerb weight of 2130kg (3.0L = 2185kg) – feels quite nimble on bush tracks.

This wagon’s wheel travel – how far the axle can move up and down relative to the chassis – has more than an adequate amount of flex, stretching its tyres close, if not all the way, to the dirt.

A noticeable trade-off is its 20-inch wheel-and-tyre combination, which is best suited to sealed surfaces and so are far from ideal for dirt-track touring. There’s an easy remedy, though. Buy a set of decent all-terrain tyres on 17- or 18-inch rims to replace the showroom-standard 265/50R20 Highway-Terrain tyres. If you are using your MU-X, avoid dropping pressures too much because you’ll risk sidewall pinches and punctures on these low-profile road tyres.

In terms of packability: the 2.2L MU-X has a listed payload of 670kg, whereas the 3.0L version offers 615kg.

The 2.2L MU-X can legally tow 750kg (unbraked trailer) and 3500kg (braked), so theoretically you can tow the same load as a 3.0-litre MU-X. But, as mentioned, the 2.2-litre engine feels underpowered, even in general day-to-day driving, so with a load and/or towing that’s an added burden.

For reference, the 2.2L MU-X has a listed gross vehicle mass of 2800kg and gross combined mass of 5900kg.

I had high expectations for the LBX Morizo RR and I’m pleased to say they were met.

What a phenomenally capable little car.

Lexus is at pains to point out that its mechanical cousins - the Toyota GR Corolla and Yaris - are motorsport bred and therefore more raw and hardcore.

The premium brand knows it needs to be able to attract new buyers with a car like this, while also satisfying its loyal base.

Lexus did this by building a hot hatch (okay, it’s an SUV) that you can easily live with day to day.

I spent an enjoyable few hours behind the wheel of the Morizo RR on a stunning Autumn day in Victoria’s Yarra Ranges driving on some incredible roads. The twists, bends, undulations and more showcased how tight this car is.

First up that engine is an absolute gem, and I don’t miss the extra kilowatts found in the Toyota models. There’s very little turbo lag and the LBX picks up pace quickly but in a focused, fun manner.

The engine note is also a delight to behold, especially when you push it hard. Although on coarse chip roads a fair bit of road noise creeps in, to the point that it's boomy.

The transmission is a perfect pairing for the engine, too, offering slick shifts without holding gears unnecessarily. I didn’t miss the manual box found in the Toyotas, either. But the paddle shifters and a true manual mode (it won’t shift unless you flick the paddle) adds to the experience.

The brakes are strong but not too pinchy and the steering is as sharp as you’d hope, while offering just enough weight. 

Then there’s the grip. The all-wheel drive system “automatically distributes the front-rear torque according to road conditions and grip”, according to Toyota.

That AWD grip always inspires confidence during dynamic driving in a car like this and the LBX sticks to the tarmac like nobody's business. Despite some damp sections of road higher up the ranges, no slip was detected. It feels glued to the road.

If that’s not enough, the Lexus surprises with its compliant and even comfortable ride quality. Many hot hatches (or hot SUVs) have a firm ride due to a chassis set-up geared to performance driving. 

Somehow Lexus has ensured the damping settings shield the occupants from the worst bumps. Only deep potholes make their presence felt.

And that’s the beauty of this car. It feels so beautifully engineered, with a clear focus on performance, but it’s not a brutal experience. You never feel like you could easily lose control in this thing. You can punt it into a tight bend and feel confident it will stay the course.

ANCAP awarded the hybrid versions of the LBX a maximum five-star rating in 2024, but the turbo-petrol Morizo RR is unrated.

The standard safety list is lengthy and includes auto emergency braking with pedestrian (day/night), cyclist (day/night) and motorcyclist (day) detection, intersection collision avoidance, adaptive cruise control, emergency steering assist, lane trace assist with lane departure warning, speed sign detection, blind spot monitoring, rear cross-traffic alert, safe exit assist, Lexus 'Emergency Driver Stop' (automatically decelerates the car within its lane if the system detects the driver has become incapacitated), front and rear parking sensors, a reversing camera with camera washer and seven airbags including a front centre bag.

The MU-X has a six-year/150,000km warranty and seven years of roadside assistance. Unlimited km in the warranty would be welcome.

Service intervals are scheduled for every 12 months or 15,000km, whichever occurs soonest.

Capped price servicing covers the first five scheduled services for MY24 and later vehicle models (up to 5 years/75,000km – whichever occurs first) – at a flat price of $469 for each service.

Isuzu Ute Australia has a nationwide network of more than 160 dealer sites.

Lexus covers the LBX Morizo RR with its five-year, unlimited kilometre warranty and capped-price servicing for five years at a cost of $695 a service.

The schedule for servicing is tight at every six months or 10,000km, whichever occurs first, so you’ll be at the dealership a bit with this one. These are the same servicing terms as the GR Corolla and Yaris.

Lexus’s 'Encore' owner benefits program includes some cool stuff, too, like a valet parking service at certain venues, and you can even swap your Lexus for a different model for a set amount of time with the On Demand service.

Lexus Encore also offers exclusive access to events and venues, as well as special offers at hotels and restaurants.