Subaru Forester vs Isuzu MU-X

What's the difference?

To many people, this review won’t matter. There’s a large part of Subaru’s customer base that come back knowing they’ll get a practical, capable car regardless of refinement - something the brand’s rivals can’t quite match.

But even those people will be pleased to find the new Forester is a huge step-up over the last one in many areas. Sure, it’s a little late for Subaru to be joining the hybrid game in 2025, but it’s not the only brand from Japan that’s been slow on that front, and the brand’s philosophy hasn’t always been focused on efficiency anyway.

In a vacuum, the new Forester is a great adventure companion, but anyone considering a mid-size family SUV and not requiring the AWD and clearance the Forester has on offer could do better elsewhere.

For anyone else, there’s still only one option that really ticks all the boxes - and now it’s much better than before.

Just get the petrol if you’re going anywhere that could damage a tyre.

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...

The new Forester is a slight departure from the characterful previous generation, and to this writer’s eye that’s to its detriment. It’s not unpleasant to look at, but it doesn’t look so much like a Forester anymore.

I wouldn’t be the first to say it looks like it had at least one pass through the North American Ford design centre, but even putting that aside, the rounded front is a less interesting design treatment than we’re used to seeing from Subaru.

Its side profile shows off its boxy, practical nature, however, and from the rear it looks much more Subaru-like than from the front.

In Sport guise, particularly, the Forester’s bronze trim and wheels are a decent give-away that the brand was going for a more premium look.

Inside, the Forester doesn’t look enormously different from the last generation, especially when it comes to buttons, shifters, and the big vertical 11.6-inch touchscreen, the latter right out of other Subaru models that have been around a while.

But perhaps that was deliberate, because some of the new Forester’s best features are those that follow the notion of ‘if it ain’t broke, don’t fix it’.

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.

Perhaps the best selling point for the new Forester is that it hasn’t changed a whole lot inside. It’s spacious for its class and has physical buttons for a lot of things, while making sure the key controls like climate are always accessible on the touchscreen without needing to navigate through menus.

The steering wheel and gearshift look familiar and the general layout of the Forester seems to follow the brand’s established pattern of convenience over anything that could be annoying or complicated.

The software on the big screen is the same as any recent Subaru SUV with big buttons and a simple menu structure that means you rarely get lost. It’s not cutting-edge, but it works, much like a lot of the elements of this car.

The seats are comfortable and the seating position and steering wheel adjustment work well regardless of grade.

One element of the interior that works particularly well is visibility. Subaru made the headrest a little narrower to assist with shoulder checks and make looking over to the back seat easier. The result is a clear view, not only of the interior but also through those annoying side angles your wing mirrors might miss.

The back seat is also plenty spacious, with ample knee, foot and hip room in the second row’s outboard seats. Head and shoulder space is also fab. There’s little risk of feeling cramped in the back, even for a proper adult, especially if there’s a sunroof for that extra light.

Behind the second row, there’s 496 litres of boot space in non-hybrids, and 484L in hybrid variants, plus a switch in the boot to drop the second row from the tailgate.

That allows for 1174L and 1162L in petrol and hybrid models, respectively, though a big downside for the hybrid models is the lack of spare wheel, just a repair kit.

No spare tyre in a car you expect to be able to take off-road isn’t good enough, and it’s the key reason the Forester doesn’t score a full 10 for interior practicality. A shame, because the rest of the cabin is built for ease.

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 MU-X X-Terrain 3.0L 4x4 is priced at $74,400 before on-road costs, or $73,990 drive-away for now.

Standard features include a 9.0-inch multimedia touchscreen system with sat-nav, wireless Apple CarPlay and Android Auto, an eight-speaker sound system, eight-way power-adjustable driver’s seat (four-way power-adjustable front passenger seat), remote engine start, smart entry and start, and 20-inch machined-alloy gloss-black wheels on 265/60R20 Bridgestone 684II HT tyres.

As part of the X-Terrain package, it has XT badging in the grille mesh, on fender and tailgate, leather-accented seats with red stitching, gloss-black fender flares and fender garnish.

It also has 265/50R20 highway terrain tyres, red ambient interior lighting with footwell lamp 360-degree, surround-view monitor, and a red-themed 7.0-inch multi-information-display.

Exterior paint jobs on the MU-X X-Terrain include four achromatic finishes: Moonstone White pearl, Mercury Silver metallic, Basalt Black mica and the new X-Terrain exclusive colour, Slate Grey metallic. 

All premium paints (pearl, metallic and mica) cost an extra $695. 

Both Forester drivetrains use the brand’s existing all-wheel drive tech and a continuously-variable transmission, but the hybrid does something Subaru is keen to point out its rivals’ don’t.

The petrol version is powered by a (136kW/247Nm) 2.5-litre naturally aspirated flat-four ‘boxer’ engine that's largely unchanged.

The hybrid consists of the same type of engine with different valve controls and lower outputs of 121kW/212Nm. 

The key part is it’s assisted by a 90kW electric motor that, rather than being mounted to the rear axle and engaging when traction is needed, is placed before the transmission and sends electric power to all four wheels. Total outputs for the Hybrid variants are 145kW and 276Nm.

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.

Subaru claims the Forester drinks 7.9L of petrol (minimum 91 RON) per 100km or 6.2L/100km in hybrid guise.

The latter's a bit of a let-down given Toyota’s RAV4 hybrid in AWD guise comes with a 4.8L/100km claim and that system's been around for ages.

Both Foresters have a 63-litre fuel tank, so could theoretically travel a maximum 797km (petrol) or 1016km (hybrid). 

Don’t expect to manage that in real-world driving, though. The trip computer reading for the last car I drove on test (a hybrid) was 7.8L/100km after a mix of highway and off-road running.

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. 

On paper, the new Forester hasn’t changed to a great degree. With that engine and the late-ish introduction of a proper hybrid system, you might expect the Forester to be undercooked. 

Sure, Subaru is playing catch-up and it would be a fair to say adding a hybrid grade to its mid-size SUV in 2025 puts it behind the curve, but Subaru is leaning into its niche.

Subaru’s very happy about being able to claim the Forester is the only hybrid mid-size SUV on sale where the one hybrid motor drives all four wheels mechanically thanks to its 'symmetrical' all-wheel drive system. Then there’s the "class-leading" 220mm of ground clearance.

But as well as being capable off the road, the Forester needs to be a decent day-to-day companion. Fortunately, it’s both.

The new Forester’s road manners are a surprising step-up over the previous generation’s, which felt soft and agricultural at times.

Subaru touted the new car's incremental improvements, but behind the wheel it feels like they add up to a far superior experience. The Forester is still a little noisy - mainly wind and road noise - but many of the elements that were once a let-down are much more refined.

The CVT doesn't complain so much when called upon to pick up the pace, and the steering feels much sharper. The former could be down to a huge increase in sound-shielding, the latter likely due to Subaru’s use of the dual-pinion steering system borrowed from the WRX.

Subaru says it “reduces mechanical resistance and eliminates unwanted feedback from the motor”. It seems to have done exactly that.

Perhaps most noticeable is the suspension, which feels more tied-down and stable than before, without sharpening up too much and becoming uncomfortable. Subaru says revised spring rates, better under-body aero and a more rigid chassis all contribute.

The hybrid and petrol have different suspension set-ups, the latter feeling softer in terms of damper response but still far more confidence-inspiring than the previous-gen Forester.

It all comes together to create a driving experience that’s easy and comfortable at traffic speeds and fun and engaging at high speeds on, for example, the smooth winding back-roads of New Zealand’s South Island.

The problem for Subaru is that despite having introduced a new hybrid system, the petrol-only Forester is just as good from behind the wheel. The advantages the hybrid brings in terms of efficiency will be a draw for some, but in terms of driving dynamics the extra power and torque on offer is probably not worth the extra outlay.

Then there’s the lack of a spare wheel… which should be a requirement when you’re off sealed roads. The gravel and mud of the Canterbury region didn’t faze the Forester, though, and we put the mid-size SUV through its paces harder than most owners realistically would.

Deep mud ruts, creek crossings and jagged rocky trails were all traversed easily and comfortably, especially considering the standard road tyres fitted. 

None of the test cars were stuck due to either negligent road testers or lack of mechanical ability on the Subaru’s part, though two cars on test did succumb to an excess of water in the engine bay and went into a safety shut-down mode once we arrived back at the end of the off-road trail.

We asked Subaru for an explanation and we were told it’s a feature that saves components like the cooling fan from water damage.

“Two vehicles experienced this due to the nose being submerged from entering the water crossing at the incorrect speed and/or entry line… if water enters the engine bay at a sufficient level, a protective fuse is designed to engage to safeguard the radiator fan motor.

“This system functioned exactly as designed. Despite this, the vehicle continued to perform as intended, enabling the driver to complete the off-road course and return safely to the Homestead. 

“After cycling the ignition, a warning light alerted the driver, and the engine shut down automatically to prevent any potential damage. This sequence is outlined in the Owner’s Manual. This is a built-in protection protocol and not a fault.”

A replacement fuse meant one of the vehicles “resumed full operation,” a Subaru spokesperson added.

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 MU-X has the maximum five-star ANCAP safety rating from testing in July 2022.

Standard safety features include eight airbags (dual front, dual seat side, dual full-length curtain, front knee and centre, far-side), and a comprehensive suite of driver-assist tech including forward collision warning, adaptive cruise control, lane departure warning, and a tyre-pressure monitoring system.

New gear onboard includes new hardware for the auto emergency braking ( AEB), like improved vehicle detection, periphery and depth perception, new digital reversing camera with a hydrophobic coating to prevent water and dirt build-up (better visibility off-road), new rear cross traffic brake (detects and reacts to approaching vehicles, cyclists, and pedestrians when reversing), as well as updated lane-keep assist ( smoother steering correction).

Subaru‘s five-year, unlimited kilometre warranty is behind the curve for mainstream brands with many offering between seven and 10 years, but its eight-year/160,000 kilometre hybrid high-voltage battery warranty is par for the course.

Servicing intervals are every 15,000km or 12 months, with servicing pricing locked in for the first 75,000km or 60 months of ownership. Total cost over this time is $2299 for either drivetrain, with the cheapest service being $347.95 and the most expensive $679.30 (at 60,000km or 48 months).

Subaru also offers 12-months complimentary roadside assistance.

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.