Isuzu MU-X vs Subaru Outback

What's the difference?

So, engine aside, not much new for the 2024 MU-X, but I can confidently say this: if you’re not towing big loads all of the time, then the 1.9-litre turbo-diesel won’t just save you cash at the dealership, but at the service station, too.

The Subaru Outback AWD Sport XT has been a great car for my family this week. It was popular with everyone and for good reason. It has loads of space, it's easy to handle and now has the grunt under the bonnet to satisfy me as a driver. However, you are paying for that grunt with the thirsty engine and that could become tiresome with the rising costs of fuel. At this price point, I also didn't love the weird-feeling material on the seats but it still impressed with its practicality and the safety features.

My son enjoyed being in this and loved the green accents and cool 'army' green colour. It was also a great height for him to get in and out of unassisted.

If you like the look of the 2023 Isuzu MU-X, then boy have I got good news for you, because the changes to the 2024 model occur under the bonnet, and nowhere else, really. That means you get the same simple, boxy exterior design, which emphasises capability over fanciness.

Yes, the MU-X design is more dependable than daring, but I reckon it works, with the three-row SUV cutting a fairly handsome figure, even if it is yet to receive the design tweaks just rolled out on the updated Isuzu D-Max.

Inside, though, it definitely presents as a little utilitarian, with some plastics that feel like they could survive a nuclear blast, and the 7.0- and 9.0-inch central screens both feel a little underwhelming by modern standards.

It all feels very comfortable and hard-wearing though, which is probably every bit as important, given the MU-X’s target market.

Subaru has been pushing for sharper robust shapes lately and this is no different. It's a large car being 4870mm long and 1875mm wide but it still feels like a station wagon with that 1670mm height!

Everything is proportional and well sculpted with a long nose being complemented by sharper accents, like the rear tail-lights that jut out.

There are some areas of interest, like the green accents on the roof rails and black plastic body moulding, that tie in nicely with the contrasting green stitching of the interior trim.

The interior is pleasing to look at with the two-tone synthetic leather trim throughout, tapered cutaways in the dash and doors, plus stacks of soft touchpoints.

The only thing I don't really like is the 'water-resistant' material in the middle of the seats. It feels very synthetic and I wonder how it will wear over time.

Overall, it's a very handsome car, inside and out.

Practicality has always been a sizeable MU-X perk, regardless of the engine. 

That starts with seven seats, and a back row where actual full-size humans can spend time — and there are not many three-row SUVs you can say that about.

I’m 175cm tall and while I wouldn’t pick row three as my first choice, I’d happily sit back there for short hops.

The middle row, too, is pretty spacious, though it is lacking in a few creature comforts, with just the air-con vents (but no temp controls) and a couple of USB ports to keep you company.

And remember when I said the brand was promising the 1.9-litre engine wouldn’t cost much in terms of capability? Well, Isuzu says the braked towing capacity for models fitted with the smaller engine is 3000kg, while the payload figure increases — now up to 735kg — mostly because the new engine is about 70 kilos lighter. Models fitted with the 3.0-litre turbo-diesel are still rated to tow 3.5-tonne. 

The MU-X stretches 4850mm in length, 1870mm in width and 1815mm in height and it sits on a 2855mm wheelbase, which means while there’s plenty of cabin space it’s not too ridiculous to park.

You’ll find 311 litres of boot space with all three rows in place, growing to 1119 litres with the second row folded flat and 2138 litres with just the front two seats in action.

Every MU-X model will offer at least 800mm in wading depth and 230mm ground clearance, too.

I love how roomy the interior is. Taller occupants will be singing its praises (from both rows).

The 213mm ground clearance also makes this the perfect height to get in and out of, for my six-year old all the way to my 72-year old father. No grunts or complaints were heard this week!

Individual storage is great with a large glove box, middle console with a shallow shelf, two cupholders and drink bottle holders in the first and second rows plus double-sleeved map pockets in the second row.

Boot storage is good with 522L of capacity and a level load space – perfect for sliding in a pram or luggage.

There's no underfloor storage because of the full-size spare tyre but there are little pockets on the side of the wheel arches for smaller items. You can bump up the storage to 1783L when the back row is folded flat.

Considering Subaru's sponsorship of the ski fields, I was surprised that the back row only has a 60/40 split fold configuration and not a 40/20/40, which would allow for internal stowage of longer gear… like skis. However, you do get strengthened roof racks with anchor points for bigger gear.

The amenities in each row are pretty good, too. The rear seats enjoy directional air vents, USB ports, reading lights and heated outboard seats.

I enjoyed using the tech this week, it's easy to use and looks good. My favourite combo.

The 11.6-inch touchscreen multimedia system has built-in satellite navigation and wireless Apple CarPlay and Android Auto. It was ridiculously easy to connect my iPhone and I like the Bluetooth connectivity, too.

There is a USB-A and USB-C port and (unusually) an 'aux' port in the front row, but backseat passengers can also stay charged up with two USB-A ports. There are two 12-volt sockets for other charging options but basically, you're sorted with outlets.

The Sport XT will cost you $52,190, before on road costs, but you get a lot of features fitted as standard, which makes it feel like you're getting your money's worth.

Some of those features include, electric heated front seats, heated rear outboard seats, powered tailgate, dual-zone climate control, wireless Apple CarPlay and Android Auto, satellite navigation, Bluetooth connectivity, 18-inch alloy wheels, a full-size spare tyre and a large 11.6-inch touchscreen multimedia system.

And that's just a 'few' of the features! Even the entry-grade has great specs, if you didn't want the extra power from the turbo-engine.

Let’s focus on the new engine option here, with the 1.9-litre turbo-diesel delivering 110kW and 350Nm. They don’t sound like massive numbers, but Isuzu makes the point that the torque delivery is wide, with maximum grunt available from 1800rpm to 2600rpm, and 300Nm available from 1550rpm to 3700rpm, meaning there’s power there when you need it.

The new engine pairs with a six-speed Aisin tramsission and delivers power to two or all four wheels.

Our model has the new 2.4-litre, four-cylinder, turbo-petrol 'boxer' engine with a maximum output of 183 kilowatts and 350 Newton metres of torque. That's a big step up in power from the previous non-turbo engine.

The continuously variable auto transmission is relatively smooth and the combo means this handles open-road and urban conditions well.

Another perk of the smaller engine is a smaller fuel bill, with the 1.9-litre turbo-diesel promising to drink 7.4L/100km on the combined cycle - almost a litre less than the 3.0-litre 4x4 model, which is more like 8.3L/100km. 

Emissions drop, too, with the smaller engine rated at 196g/km of C02 combined, compared with 220g/km on for the 3.0-litre 4x4 model.

Impact on the hip pocket? Well, fewer trips to the service station for one. Isuzu says the 80-litre fuel tank should deliver almost 1100km of driving between refills.

The official combined fuel cycle figure is 9.0L/100km. Real world testing saw my figure at 9.6L/100km but that was after heavy open-road driving this week.

Unfortunately, it's thirsty and urban-dwellers will feel that the most at the bowser, but the upside is getting the extra grunt from the turbo.

The Outback has a relatively small 63L fuel tank for its size and only takes premium fuel (95 or higher).

First things first, you can absolutely tow with the smaller MU-X engine. In fact, we attached a load weighing close to its 3.0-tonne maximum and the Isuzu just hunkered down and got to work.

It must be said, though, it’s nowhere near as effortless as when you have the bigger 3.0-litre turbo-diesel engine up front, which dispatches heavy loads clinically and easily.

The smaller option has to try harder and rev higher, and while it’s easy enough on downhill runs or flats, it’s noticeably slower when heading up hill.

It does demand the question of how often you’ll be attaching close to its rated maximum on the towball, though. If it’s often, the bigger engine is definitely for you. But if it’s occasionally, or your tow loads are lighter, you can definitely make do with the 1.9-litre option.

On the road, the 1.9-litre engine’s power delivery is actually pretty well suited to the MU-X. It’s not fast, of course, but the width of the torque band helps deliver grunt when you need it (to a point) especially in the low-end, and I reckon the whole experience is a bit smoother and quieter than with the bigger engine, too.

You are missing some of that effortless grunt, of course, and you still can’t escape the usual diesel noise that permeates the cabin, but the lower fuel use for lower power feels like a fairly decent trade. 

It won’t be for everyone, and cross-country travellers and towers will no doubt go for the bigger unit, but for everyone else the 1.9-litre is a pretty sensible option.

I thoroughly enjoyed driving this. The engine is powerful enough to easily handle winding mountain roads, always a plus in a big family car, but the pick up is also good and you can zip across traffic or overtake when needed.

The cabin is delightfully quiet and the suspension creates a smooth ride without being floaty.

The tight 11m turning circle and accurate steering means cornering feels concise and controlled.

It's pretty easy to manoeuvre this around but you'll miss having front parking sensors in a tight car park because the nose is deceptively long.

I like how crisp the image is from the reversing camera but it's disappointing that it doesn't have a 360-degree view camera for where this Sport XT sits in the model range.

The safety features are well-stocked in this and it has items I always like to see on a family car, like LED daytime running lights, automatic emergency braking, rear emergency braking, lane departure alert, lane keeping aid, blind-spot monitoring, rear cross-traffic alert, a reversing camera and rear parking sensors, but not front parking sensors, which you'll miss.

A highlight is the 'Driver Monitoring System' which is a fantastic feature.

The system literally watches you and scans your face for signs of drowsiness and distraction. If it detects them, it will sound an alert and a pop up comes on in the instrument panel.

I tested the sensitivity a lot this week and couldn't stump it. Thumbs up.

The Outback has seven airbags, but it is missing the newer front centre airbag, which is a shame.

It's been awarded a maximum five-star ANCAP safety rating from testing done recently in 2021.

There are ISOFIX child seat mounts on the outboard rear seats and three top tether child seat anchors.

The back seat is wide enough that, with the right seats, you should be able to fit three side-by-side.

There is enough room for front occupants when a 0-4 rearward facing child seat is installed.

Every Isuzu MU-X model gets a six-year, 150,000km warranty, as well as five years of capped price servicing, and up two seven years of roadside assistant. 

The service are 12 months or 15,000km, and each service costs $449 per year, or a total $2245 over five years.

On-going costs are always something to consider and the Outback comes with a five-year/unlimited km warranty, which is standard for the market.

You can choose either a three- or five-year capped-priced servicing plan, the services average on the more expensive side at $515 annually on the five-year plan.

Servicing intervals are pretty good at every 12 months or 15,000km, whichever comes first.