Isuzu MU-X vs BYD Atto 3

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...

BYD hasn’t made dramatic changes to the Atto 3 for 2024, but has it done enough to lure in more buyers? 

The additional equipment, namely the larger infotainment screen and new tyres, will certainly help make the Atto 3 more appealing. And the technology behind EVs is more understood by the average motorists, so the barriers to making the switch to electrification are dropping.

But the single biggest factor is likely to be the price. At a time when inflation (and other reasons) is driving the cost of new vehicles up, having your updated model go in the wrong direction will only help make potential buyers take notice.

Especially when you consider Toyota’s closest rival to the Atto 3, the bZ4X, starts at $66,000, while the Tesla Model Y is priced from $55,900, making both significantly more expensive propositions. Heck, the cheapest Toyota RAV4 hybrid model starts at $42,260, only marginally cheaper than the Atto 3 Standard Range.

So, if BYD can make its value argument strongly it will help lure more new buyers to take the plunge into the world of EVs.

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.

In a couple of words, not really. At least when it comes to the exterior design.

In fact, the biggest design change for 2024 is actually the colour of our test car, the new Cosmos Black. Apart from that, the rest of the Atto 3 is unchanged visually, which is becoming something of a trademark for EVs, at least from newer brands like BYD and Tesla. 

Instead of worrying about adding a new grille, different headlights or an alternative alloy wheel design, brands like BYD are focusing on updating batteries, the technology and other software enhancements to keep their models fresh.

The only exterior change is at the rear, where the previous 'Build Your Dreams' lettering has been replaced by a simple 'BYD' badge.

As for the interior design, kudos to BYD for not following Tesla down the cost-saving-disguised-as-minimalist-design path, but personally the design aesthetic and the variety of colours and trims used aren’t to my taste, but I can see why others may love it. The ‘guitar string’ door pockets are likely a particularly polarsing design choice.

BYD has added a new interior option, with a black/blue trim for the examples finished with grey and black exteriors, while white and blue painted cars get a blue/grey interior.

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 Atto 3 remains classified as a ‘Medium SUV’ but blurs the line between mid-size and small in terms of dimensions, especially inside. It’s not in the same size game as the Toyota RAV4 or Mitsubishi Outlander, but is close in size to the likes of the Honda ZR-V and Mazda CX-5.

While there’s a few key practical storage spaces, there aren’t as many as some newer rivals, which does suggest the Atto 3 design is starting to date or just wasn’t well thought-out enough in the first place; such as putting all the switchgear in the centre console rather than on the dashboard.

This was probably done, at least in part, to accommodate the rotating touchscreen, which seems like a poor design and practicality choice to me. Especially the new one, which at 15.8-inches when rotated to the portrait mode it starts to interfere with your vision and the layout is more user-friendly in landscape mode - both when using the native multimedia system or your smartphone connection.

Space is respectable in the back seats, and there’s both a USB-A and USB-C port for charging devices. While out the back the boot measures 440 litres, which is a respectable amount of space for an SUV this size, but there’s only a tyre repair kit instead of a spare wheel.

As we just mentioned, price has been a critical tool for carmakers looking to keep demand for EVs rolling along as the early adopters fade, and BYD is not immune from this. Earlier in 2024 the Atto 3 Extended Range, the model we’re testing here, started at $50,011 before on-road costs. Then in April 2024, BYD announced a drive-away deal for $45,990 for pre-registered demos. 

Now this updated model is priced from $47,499 (plus on-road costs), which is a jump up from the sale price, but is more than $3500 cheaper than the Atto 3 was at the start of 2024. Meanwhile, the Standard model is priced from $44,990 (plus on-road costs), which is also a saving of more than $3000 on the previous model.

The key difference between the Standard and Extended Range models are the batteries, so the specification is similar. Both variants are equipped with LED headlights, power tailgate, synthetic leather upholstery, power-adjustable front seats, 5.0-inch digital instrument panel and in-built satellite navigation.

One of the big ticket item changes for 2024 is the upgraded 15.8-inch multimedia touchscreen, which comes with BYD’s signature trick - rotating between portrait and landscape modes. This is upsized from 12.8-inch in the old model. Wireless Apple CarPlay and Android Auto are now standard too.

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.

As with the design there isn’t much to say about what’s powering the Atto 3 because it’s the same as the 2023 model. Both the Standard and Extended Range use the same front-mounted electric motor, which makes 150kW/310Nm and drives the front wheels through a single speed transmission.  

With 0-100km/h times of 7.9 seconds and 7.3 seconds respectively for the Standard and Extended Range, the Atto 3 won’t shove you back in your seat, but it has adequate performance for a mid-size SUV. 

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 Standard Range has a rated driving range of 345km (WLTP) from a 49.92kWh ‘Blade’ lithium-iron phosphate (LFP) battery while the Extended Range’s bigger 60.48kWh unit increases that to 420km.

Charging is capped at 70kW (DC) for the Standard and 80kW (DC) for the Extended. 

One of the major hurdles for EV brands is convincing people that they won’t run out of charge every day. At 420km the Extended Range Atto 3 will get most people through multiple days of commuting, so even with public charging you shouldn’t worry about range anxiety. 

Those drivers with commutes longer than 420km per day should be looking at something other than an electric car (and probably a job closer to home).

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.

Driving the updated Atto 3 feels… fine. Nothing special or class-leading, but within the expectations buyers should look for in a mid-size SUV. Which is meant as a compliment to BYD, as it is still a relatively new brand in this very competitive market and there are certainly some noticeably worse rivals in this same segment. 

The Atto 3 may not be the most comfortable, most powerful or most dynamic mid-size SUV, but it’s a perfectly nice thing to drive and it will get you from Point A to Point B quietly and smoothly.

Another of the major changes for 2024 is BYD’s decision to ditch the fantastically named, but not very good Atlas Batman tyres, replacing them with Continental rubber. The Atlas tyres were a major drawback on the old model, lacking grip and detracting from the driving experience, with the new ‘Contis’ solving those problems. 

In terms of safety, both Atto 3 variants get a comprehensive list of both passive and active safety features, enough to score a five-star ANCAP rating.

There’s airbag coverage for all occupants, 360-degree parking cameras, adaptive cruise control, autonomous emergency braking, forward and rear collision warning, blind spot detection, lane departure warning, lane keeping assist, rear cross-traffic alert, rear cross-traffic brake and door open warning.

Most of these systems behaved themselves during our testing, although the forward collision warning did seem overly sensitive at times, and sounded alarms over potential accidents that simply weren’t a problem. Still, compared to some modern brands, the BYD systems performed well.

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.

BYD offers a six-year/150,000km warrant for the vehicle, with eight years/160,000km coverage for the batteries.

Service intervals are every 12 months of 20,000km and while a minor service is only $165, every second visit is more expensive, ranging from $498 to more than $600. There may be less oily bits under the bonnet but there’s still a cost to owning an electric car.