Isuzu MU-X vs LDV D90

What's the difference?

The MU-X has always had plenty of appeal as a daily driver – dependable, not dynamic – and it’s a proven 4WD wagon.

Some people don't like the noisy, sluggish engine, but I don't mind it because it delivers off-road.

There was already a lot to like about the seven-seater wagon in terms of its off-road capability, driver-assist tech, standard features, and simple all-round driveability, and the X-Terrain – which encompasses all of that AND adds some polish to the mix – is an impressive top-shelf addition to the MU-X line-up. Even if it's so pricey...

Looking for a cheap, powerful diesel SUV with huge cabin space and a humane third row for adults? The D90 is a really sound offering, especially considering the price of entry for this top-spec diesel which should resonate with Aussies a bit better than the petrol version.

It has plenty of issues that could be ironed out, but they’re all so small and not sale-breaking it’s almost annoying how much better the D90 could be with just a little work. Rivals should be looking over their shoulder for what comes next.

As I’ve said before, the MU-X has never been particularly exciting or boring in terms of design, just comfortably adopting a low-key, middle-of-the-road type design – sales gold, in other words.

But the X-Terrain has distinctive ‘X’ branding here and there – inside and out – and that adds a subtle class to this variant.

The X-Terrain is 4860mm long (with a 2855mm wheelbase), 1870mm wide (excluding mirrors), 1825mm high and has a listed kerb weight of 2195kg.

It has a wheel track of 1570mm and an 11.6m turning circle. 

Our test vehicle has the exclusive X-Terrain paint – slate grey metallic – which matches well with the X badging, bigger grille design, new headlights, three-tier LED tail-lights, and redesigned wheels.

The interior strikes a stylish note as well with red stitching on the dash, centre console and leather-accented seat trim.

Some colleagues I’ve spoken to like the way the D90 looks. To me, it looks like someone gene-spliced a Hyundai Tucson with a SsangYong Rexton in a lab, then grew it in a stew of peptides and this was the result.

What can’t really be communicated in images is how truly massive the D90 is. At over five metres long, two metres wide and almost two metres tall, the D90 is certifiably huge. Given that’s the case then, it’s admittedly almost admirable that only the side profile makes this thing look a little goofy.

I think LDV has done a pretty good job on the front, and the rear is simple but well resolved for a vehicle that rides on a ladder chassis (just take a look at the Pajero Sport for how ladder-chassis rear designs can get… controversial…).

The wheels, garnishes, and LED headlights are all tastefully applied. It’s not ugly… just confronting… size-wise.

Inside shares some familiar characteristics with sister-brand MG. Look from a distance and it’s all quite nice, get in too close and you’ll see where the corners have been cut.

The first thing I don’t like about the interior is the materials. Apart from the wheel they are all pretty cheap and nasty. It’s a sea of hollow plastics and mixed trims. The faux-wood pattern, which is clearly just a print on a plastic resin is particularly gnarly. Reminds me of some Japanese cars from 20 years ago. It might work for the Chinese audience, but that’s not where the market is in Australia.

On the other hand, you could say “well, what do you expect at this price?” and that is true. Everything is here and works, just don’t expect the D90 to be playing alongside the established players when it comes to fit, finish, or material quality.

The huge screen works to finish the dash, but that darned software is so ugly you’ll wish it didn’t. At least all the major touch-points are ergonomically accessible.

The interior has a pleasant, familiar and practical feel about it and this is an easy space in which to swiftly become comfortable. 

Controls are easy to locate and operate and charging options are numerous – a mix of USB-A, USB-C and 12V up front, and USB-A for the second row.

Storage places include recesses for your everyday carry gear, a suitably deep 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 cupholders either side of the third row in the MU-X for passengers riding back there.

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

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

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 folded.

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 D90 is as massive on the inside as it is on the outside. I’m talking better space than a minivan, and nothing says that more than the humane third row. At 182cm tall, I not only fit in the rearmost two seats, but I can do so in as much comfort as any other row. It’s staggering. There’s actual airspace for my knees and head back there.

The second row is massive and on rails too, so you can extend the amount of room available to third-rowers – and there’s so much room in the second row, you’ll have space even with the seats moved forward.

My only criticism here is that the giant rear door is far enough forward to make clambering into the third row a little tricky. Once you’re there though there are really no complaints.

The boot is even usable with the third row deployed, with a claimed 343L of space. That should be hatchback-sized, but the measurement is a little deceptive as the space is tall but shallow, meaning it will only allow you to place smaller bags (a few, if you can stack them) with the remaining space.

The boot is otherwise cavernous with a wild 1350L available with the third row stowed flat, or 2382L with the second row stowed. In this configuration, with the front passenger seat slid forward to its furthest position, I was even able to get a 2.4-metre-long benchtop in the back. Truly impressive.

Without buying an actual commercial van then, this could be the cheapest way into such room, especially in a 4x4 bi-turbo diesel SUV. No arguing with that.

Second-row occupants get their own climate control module, USB ports and even a full-sized household power outlet, with more legroom than you could possibly need. My only complaint was that the seat trim seemed a little flat and cheap.

Front occupants get large cupholders in the centre console, a deep armrest box (with no connectivity in it, just a randomly placed DPF cycle switch), pockets in the doors, and an awkward binnacle under the climate controls that houses the single available USB port. My phone didn’t fit in there.

No complaints about leg and headroom in the front either, though, with plenty of adjustability to boot. The driver’s seat offers a commanding view of the road, although it can be a little unsettling to be so far off the ground in corners… more on that in the driving section.

On paper, the seven-seat D90 is immediately quite appealing. At $47,990, it is literally a lot of car for the money. This latest iteration, the bi-turbo diesel, is only available in Executive trim at this price, but you can pinch pennies further by choosing one of the lesser petrol turbo variants.

Regardless, and much like its MG sister brand, LDV is good at making sure that essential spec boxes are ticked.

This includes screens galore as is popular in the Chinese market, including a massive 12-inch multimedia screen and 8.0-inch digital dash.

A screen is only as good as the software that runs on it though, and let me tell you, the D90’s software is not good. A quick flick through the weirdly small menu reveals barebones functionality, terrible resolution and response time, as well as possibly the worst execution of Apple CarPlay I’ve ever seen.

I mean, it doesn’t even use all of that screen real estate! Not only that, but in a recent overhaul to CarPlay, Apple released software to utilise wider displays – so the car’s own software must simply be incapable of supporting it. Inputs also proved laggy, and I had to repeat myself on multiple occasions to get any use out of Siri. Unlike every other car I’ve used, the software in the D90 wouldn’t return to the radio after you hang up or stop talking to Siri. Frustrating.

I’d rather have a far smaller display that actually worked well. The semi-digital dash was functional, although barely did anything that a small dot-matrix display isn’t capable of and had one screen which for my entire week said ‘loading’. I’m still not sure what it was meant to do…

At least it supports Apple CarPlay at all, which is more than could have been said for segment hero, the Toyota LandCruiser.

The D90 does tick some necessary items that are quite good. LED headlights are standard, as are leather seats with eight-way power adjust for the driver, a heated multi-function steering wheel, 19-inch alloy wheels (which still somehow look small on this huge thing), three-zone climate control, eight-speaker audio system, electric tailgate, keyless entry with push-start ignition, a reversing camera, front and rear parking sensors, tyre-pressure monitoring, as well as a fairly substantial safety suite which we’ll explore later in this review.

Great on paper then, the bi-turbo diesel engine is a boon, as is the fact that the D90 rides on a ladder chassis with an electronically-controlled low-range terrain mode for the transmission, too.

You’d expect to pay more – even from Korean and Japanese rivals for this much specification. No matter which way you cut it, the D90 is good value.

The MU-X has a 3.0-litre four-cylinder turbo-diesel engine, producing 140kW and 450Nm and it’s matched to a six-speed auto.

These form part of a proven powertrain and while the MU-X may not be the most dynamic vehicle to drive – it’s acceleration is sluggish rather than punchy – it has a real tractability that nullifies any other niggles.

It has part-time 4WD, with high- and low-range as well as various drive modes, rough terrain mode, and a rear diff lock.

The D90 was initially offered in Australia with a 2.0-litre turbo petrol four-cylinder, but this 2.0-litre bi-turbo diesel makes much more sense, both for towing and long-distance touring.

It’s a four-cylinder offering a healthy 160kW/480Nm. You’ll note that’s pretty close to Ford’s similar 2.0-litre bi-turbo diesel, which is currently offered in the Everest…

The diesel also gets its own transmission, an eight-speed torque converter automatic with computer-controlled ‘Terrain Selection 4WD’.

This gives the D90 diesel a max towing capacity of 3100kg braked (or 750kg unbraked) with a max payload of 730kg.

Official fuel consumption for this MU-X is 8.3L/100km and that's on a combined cycle. 

On this test I recorded 10.2L/100km. I did a lot of high and low-range four-wheel driving, so that fuel consumption is not too shabby.

The MU-X has an 80-litre fuel tank, so going by my on-test fuel consumption figures you could reasonably expect a driving range of about 784km from a full tank. 

The D90 diesel is said to consume 9.1L/100km of diesel on the combined cycle, but ours didn’t score near that with a figure of 12.9L/100km after a week of what I’d consider “combined” testing.

The D90 a big unit, so that number doesn’t seem outrageous, it’s just nowhere near the claim… All D90s have 75-litre fuel tanks.

In previous tests, the MU-X has been fine on road and more than adequate on gravel, dirt tracks, and during low-range 4WDing. But it’s been a jarring, skippy ride on irregular surfaces rather than as composed as it could – and should – have been. The culprit? Firm suspension, over-inflated tyres, too-tight trousers, who knows?

The good news is it seems like Isuzu has ironed out any issues in the suspension, minor or otherwise, because the MU-X is now is a lot better in terms of ride and handling than ever before. 

Off-road, the MU-X has always been a proven combination of its 3.0-litre, four-cylinder turbo-diesel engine, clever six-speed automatic transmission, and an off-road traction control system that's been increasingly well recalibrated through a number of generations. 

The engine is tractable and gruff, it has plenty of grunt and, as long as you're not driving like a complete hoon, you can usually get through most obstacles without a lot of fuss.

It's this mix of mechanicals and driver-assist tech that make the MU-X such an effective 4WD package. And there are a number of reasons for that. 

For one, that engine delivers plenty of torque down low and in the mid-range torque and that's crucial for four-wheel driving. 

And another thing, Rough Terrain Mode – like a beefed-up and fine-tuned off-road traction control – proves very effective because it punches torque to the wheel with the most traction – while wheel spin on tyres that aren't touching dirt is minimised – and that way it keeps the vehicle moving through obstacles with safe and controlled momentum. 

As I’ve noted before though, Rough Terrain Mode is not a magic all-conquering solution, but it is another handy addition to the MU-X’s off-road toolbox.

And the MU-X also has a rear diff lock to back you up – and that's another valuable component. 

The MU-X has approach, departure and ramp-over angles of 29.2, 26.4 and 23.1 respectively.

A listed 235mm of ground clearance is about standard for this kind of wagon but, as I’ve said before, it seems vulnerable in the underbody, side steps and its plastic mud guards. So the underbody may touch dirt, depending on how challenging the terrain is. 

Wading depth is listed as 800mm.

But, as always, with focused driving, you’ll have lots of fun and you'll minimise any superficial damage or scuff marks to the MU-X.

The MU-X has plenty of potential as a touring platform, but, if you’re planning to do any off-roading beyond well-maintained tracks, then get rid of its road-biased tyres and replace them with all-terrain tyres.

The showroom-standard tyres on this MU-X – 265/50R20 Bridgestone Dueler HTs – are okay, but not really up to scratch if tough 4WDing is what you’re keen to do. I’d prefer an 18-inch wheel and tyre package with decent all-terrains.

The MU-X has a full-sized underslung spare and in terms of packability, the MU-X X-Terrain has a listed payload of 605kg, GVM is 2800kg and GCM is 5900kg.

If you are considering using your MUX as a tow vehicle, it's handy to know that it can legally tow 750kg (unbraked) and 3500kg (braked), which is the standard for large four-wheel-drive wagons. 

Be aware though that, as with any other vehicles, once you're towing anywhere near the maximum weight, your payload is greatly reduced.

The D90 is easier to drive than it looks… to a degree…

It lacks some polish of its more established rivals, which results in a drive experience that isn’t bad, but occasionally frustrating.

The ride somehow manages to be soft and harsh at the same time. It undulates over larger bumps, while transmitting the worst parts of smaller, sharper ones to the cabin. It speaks to a lack of calibration between the suspension and dampers.

That having been said, the D90 masks its ladder chassis underpinnings well, with little of that typical body-on-frame jiggle that some rivals still struggle with.

The drivetrain is good, but a little unruly. As you’d imagine from the figures, there’s more than enough power on tap, but the transmission tends to have a mind of its own.

It will occasionally lurch between gears, pick the wrong gear, and off-the-line will sometimes be delayed before shunting the D90’s bulk forward with a sudden mountain of torque. It doesn’t sound particularly good either, with the diesel surging through the rev range with industrial crudeness.

By the time the D90 has reached cruising speed though, there’s really not much to complain about, with the D90 milling along with plenty of power in reserve for overtaking. The view of the road is commanding, but you really feel the D90’s high centre of gravity in the corners and under heavy braking. The physics of such a large object are undeniable.

I have to say, LDV has done a fantastic job of the D90’s steering, with a quick, light feel that betrays the SUV’s size. It manages to stray on the right side of lightness though, not being so disconnected that you lose a feeling of where the wheels are pointing. No mean feat in something this shape.

Overall then, the D90 isn’t bad to drive and has some genuinely great characteristics, it just also has a litany of small issues that get in the way of it being truly competitive with segment leaders.

The LDV D90 carries a maximum five-star ANCAP safety rating as of 2017, and has a fairly comprehensive active safety suite.

Included on the diesel is auto emergency braking (AEB) with front collision warning, lane-departure warning, blind-spot monitoring, driver-attention alert, traffic-sign recognition, and adaptive cruise control.

Not bad for the price, and nice that there’s nothing optional. Expected items include electronic traction, stability, and brake controls, as well as six airbags.

The curtain airbags do extend to the third row, and there’s the bonus of a reversing camera and a tyre-pressure-monitoring system.

There is a full-size steel spare under the boot floor, and the D90 also gets dual ISOFIX and three top-tether child-seat mounting points.

The MU-X has a six-year/150,000km warranty and seven years of roadside assistance. That warranty is okay in terms of years, but unlimited kilometres 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 24MY and later vehicle models (up to five years/75,000km, whichever occurs first) – at a cost of $469 for each service.

LDV covers the D90 with a five-year/130,000km warranty, which is not bad… but falls behind sister brand MG, which offers seven years/unlimited kilometres. At the very least it would be nice to have the unlimited kilometre promise.

Roadside assist is included for the duration of that warranty, but there’s no capped price servicing offered through LDV. The brand gave us indicative pricing of $513.74, $667.15, and $652.64 for the first three annual services. An initial six-monthly 5000km checkup is free.

All D90s need to be serviced once every 12 months or 15,000km, whichever occurs first.