Isuzu MU-X vs Hyundai Tucson

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.

As Toyota has found with the RAV4, these types of ‘self-charging hybrids’ are popular with customers because they offer more performance, lower fuel economy and require no change in behaviour - no plugging in or managing battery range.

There’s a very good reason for Hyundai to add the Tucson Hybrid to the local line-up, because it will expand the appeal of what is already a popular SUV. Many buyers have turned off diesel in the wake of the Volkswagen emission scandal, so hybrids such as these have greater appeal.

Especially if Hyundai can keep the price difference between the hybrid and diesel to a similar level to what we’ve already seen with the Santa Fe. In these current times of high petrol prices and cost-of-living pressures, anything that can make driving better financially we welcome.

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.

What’s interesting about the design is that there isn’t anything unique about it, at least not overtly different from the rest of the Tucson range. As electrification becomes the norm rather than the exception, car makers have realised car buyers don’t need or want their electrified cars to be styled dramatically differently. 

As Toyota's decision to drop the Prius in Australia and instead relying on the Corolla to cater to buyers looking for a hybrid model demonstrates, buyers have evolved with their tastes. 

Instead both outside and in, the Tucson Hybrid is a regular-looking SUV that will appeal to anyone looking for a fuel-efficient model. 

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.

Despite the addition of the hybrid powertrain elements the Tucson remains a practical family car. While it’s not the biggest SUV in its segment it offers adequate room for a family of four or five.

The front seats are comfortable and there’s good small item storage, as you’ll find in the existing Tucson range, with cup holders, a wireless smartphone charging pad, lidded console box and deep door pockets. The rear bench is good too, with enough room for my 180cm frame to fit in relative comfort, as well as cup holders in the fold-down armrest and a bottle holder in the door.

Crucially, the boot capacity is the same in both the petrol and hybrid Tucson in US specification, which means it should translate to the same 539-litres offered here. The boot floor is flat, which will make loading and unloading easier, but it’s worth noting that the US-spec model we drove had no space for a spare tyre and instead relied on a puncture repair kit.

While Hyundai may have confirmed the impending arrival of the Tucson Hybrid, the details are still under wraps. That’s likely because the hybrid will coincide with an as yet unseen mid-life refresh of the Tucson that was first revealed back in 2020.

Because of that there’s no public confirmation of pricing and specification for this new addition, but we can extrapolate what to expect based on the rest of the Hyundai line-up. Based on the recently added Kona and Santa Fe Hybrids, it’s a safe bet there’s likely to be two variants of the Tucson Hybrid. Expect an entry-level model - likely just called Tucson Hybrid - and a more luxurious variant - probably carrying the Tucson Hybrid Premium name, or possibly the Highlander badge.

Precisely what specification they will include and how much they will cost remains to be seen, but again we can probably take an educated guess based on what we’ve seen with the Kona and Santa Fe. The Kona Hybrid carries a $4000 price premium over its petrol-powered equivalent, while the Santa Fe Hybrid costs $3000 more.

So if the 2024 Tucson prices stay flat (which is possible but not guaranteed) expect the Tucson Hybrid to start around $46,900 and the Tucson Hybrid Premium/Highlander at $53,900.

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.

This is the heart of the matter, with the Tucson Hybrid combining a 1.6-litre turbocharged four-cylinder petrol engine with a small electric motor. The petrol engine makes the same power as the ‘SmartStream G1.6’ in the current Tucson, 132kW/265Nm. But the addition of the 44kW electric motor takes the total powertrain output to 168kW/349Nm.

The powertrain is paired to a six-speed automatic transmission as standard as well as Hyundai’s HTRAC all-wheel drive system.

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.

Hyundai USA rates the Tucson Hybrid fuel economy at between 6.1L/100km and 6.3L/100km depending on the variant. It must be noted that US fuel economy figures do alter to Australian numbers, but as a guide those figures are competitive without being class-leading.

The X-Trail e-Power returns the same 6.1L/100km, but the RAV4 Hybrid uses just 4.8L/100km so there’s room for Hyundai to close the gap.

But at 6.1L/100km the hybrid would be the most fuel-efficient member of the Tucson range in Australia, with the diesel managing 6.3L/100km and the 1.6 turbo petrol using 7.2L/100km. So there’s reason to think adding this hybrid option would expand the appeal of the Tucson.

The US-spec models have a 51-litre fuel tank which means a theoretical driving range of up to 835km on a single tank.

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.

The extra power and torque makes for a notable improvement in performance over what’s currently offered in Australia. The Tucson Hybrid feels quite punchy off the mark whenever you engage both the engine and motor. While it’s not exactly a ‘N Performance’ model, it does feel sprightly for a mid-size SUV.

Plus there’s the added bonus that the electric motor can do all of the work some of the time.

So if you do a lot of urban driving and can be careful with your right foot you may be able to get close to, or even beat, the claimed fuel economy.

It’s difficult to make a definitive comment on the handling, because the version we drove had the US suspension tune, which felt softer than what we’ve experienced here to deal with America’s very average road conditions. Even so, our test drive did demonstrate that the addition of the hybrid system, and the added weight it brings, doesn’t have a negative impact on the way the Tucson drives. It still feels like a well-balanced and responsive SUV and we’d certainly expect that to be the case of Australian-bound models.

Again, this is an area where we don’t know any specific details, but it’s almost certain that the Tucson Hybrid will follow the same safety features as the rest of the range.

There’s all the usual acronyms you expect these days, such as AEB (autonomous emergency braking), ESC (electronic stability control), BSM (blind spot monitoring) and RCTA (rear cross-traffic alert).

The biggest difference between the current range and the hybrid is likely to be the loss of the full-size spare wheel. Given the unique Australian conditions, if Hyundai can find a way to fit even a spacesaver spare it would be more appealing and safer than the puncture repair kit.

The addition of an all-new engine variant typically requires a new crash testing program under the ANCAP safety ratings, but the rest of the Tucson range is five stars and there's no reason to think the hybrid would be dramatically worse.

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.

It’s safe to assume that Hyundai Australia will offer its standard five-year/unlimited kilometre warranty for the Tucson Hybrid. 

Servicing costs are unclear but it’s probable that the more complex hybrid powertrain would mean a higher price. But Hyundai Australia will likely offer a servicing plan, so you’ll know up front what you’re in for.