Lexus RX450H vs Hyundai Inster

What's the difference?

The RX is a little frustrating - it's going after Mercedes and BMW and Audi in a hotly-contested space and falls over in a couple of key areas. The media/sat nav system is hopelessly outdated and the drivetrain fails to deliver a significant performance or fuel benefit (although, given its 2.2 tonnes, perhaps it delivers a miracle).

It does come with a rock-solid, scandal-free reputation, a reputation for spectacular customer service, it has a lovely cabin and it's certainly an individual looker. For plenty of people, that's quite enough.

The target market for the Inster isn't huge, and Hyundai knows it won't be a runaway best-seller for the brand. But those in the market for a bite-sized EV will find the Inster feels bigger, and drives better, than they might expect.

There's a lot of RX and there's a lot going on in that creased, folded and teased sheetmetal. It's a unique design, with a huge 'spindle grille', big lights and the fast glass both front and rear.

It positively screeches Lexus DNA and was a polarising force on our driveway for the week. Most weren't sure, but knew for certain it was a Lexus.

Aggressively flared wheelarches like this aren't common on SUVs (although the squared-off ones are). It's right up on stilts, but the 20s you find it rolling on help to reduce its visual bulk.

That wacky rear quarter glass reminds me of the BMW i3's but it's a Lexus SUV signature. It's quite striking. Do I like it? Not really, but that's completely subjective. You can tell, though, it's built tight as a drum.

Inside is a bit calmer, beautifully laid-out and built to last. The materials are almost all top notch, with lovely switchgear and the real leather is really nice.

There is absolutely nothing avant-garde in there (apart from maybe the pinstripe effect on the centre console), it's all terribly comfortable and easy on the eye. But not exciting, though not all Lexuses are.

This particular car is very US-centric and, if I may, a particularly sunny and humid part, so it can't be too wacky.

The words small but perfectly formed appear here, with Hyundai’s insistence on not having a traditional range-wide design identity allowing them the freedom to create something unique and pretty funky here — though I do see some shades of Suzuki Ignis in the side profile.

It does look fun though, right? With the selfie ring-light-style headlights, Tetris-style rear lights, those swollen guards and the funky alloys.

And you can dial up further with the Cross variant, which gets a tougher, more squared-off look front and back - even if you’re more chance of meeting a bunyip than an Inster on your favourite off-road track.

Inside, the cuteness continues, though some of the scratchy cabin materials definitely point to the entry-level nature of the Inster.

Still, the seat materials, both the cloth and the leather, are lovely and thoughtfully coloured, and the twin screen setup is nice, too. I love the inclusion of a host of physical buttons that control the climate, stereo and the nav.

There is plenty of room inside this big unit, which is very welcome. Front seat passengers have lots of storage, such as a deep central bin under the armrest, dual cupholders and big door pockets with bottle holders.

Step into the rear and there is a ton of leg and headroom although the transmission tunnel intrudes slightly for the middle passenger. Chuck them out, drop the armrest and you have two more cupholders and each door has pockets and bottle holders.

The boot is pretty big considering the angle of the rear glass. You start with 453 litres (but an expanse of flat floor), which rises to 924 litres with the split-fold seats down. That seems conservative given just how much space you appear to have.

The Inster stretches 3825mm long, 1610mm wide and 1575mm tall, but it rides on a 2580mm wheelbase – the later being bigger than the Hyundai Venue, and almost as big as the Kona.

It has allowed Hyundai to stretch the legroom options in the backseat, which actually gives you more space than the two bigger SUVs mentioned above, helped massively by the fact the Inster's rear pew is on rails, allowing you to slide it right back, and that it reclines a fair way, too.

I'm 175cm and I found I had more than enough leg and headroom, and with the backseat in full La-Z-Boy mode, I could sit back and relax, even on a longer journey.

It's a good thing it's four seats only, though. While the Inster feels longer than it is, it doesn't feel any wider, and even in the front seat you can feel like you're in economy class when you have a passenger on board, with both of you rubbing elbows on the central armrest.

Clever storage abounds though, with hidey-holes, handbag hooks and more dotted throughout the cabin. Opt for the roof box – and wear the efficiency penalty – and you can pop another 75kg worth of gear on the roof.

Also cool is the fact the backseats fold completely flat in the entry-level Inster, upping the storage possibilities. And in the top-spec Cross, the front seats fold down, too, allowing for fairly long items to be stowed. Though why you would need the driver's seat to fold flat is a bit of a mystery, unless you're looking to turn your Inster into an immovable storage container.

Apparently in Korea you can option a mattress that slides over all four seats, but I can't see that taking off here.

The official storage numbers are 280L and 1059L, and the small boot is helped along a little by underfloor storage where you can pop your charging stuff.

The Inster is available as an entry-level model, which comes as a Standard Range for $39,000 before on-road costs, or an Extended Range for $42,500. It then steps up to the Inster Cross, which is $45,000.

For perspective, the Geely EX5 is considerably bigger, and will travel further on a charge, for $40,990 before on-road costs. Then there's the Chery E5, which is now  $39,990 plus on-road costs.

Anyway, the Inster nabs 15-inch wheels, dual 10.25-inch screens (one for the multimedia, another for driving info), a six-speaker stereo, Apple CarPlay and Android Auto, cloth seats, two V2L connectors, a wireless charging pad and rain-sensing wipers. The equipment list for the Extended Range is the same, but it rides on 17-inch alloys.

Stepping up to the Inster Cross scores you a unique and off-road-inspired look, but also leather trim inside, a unique design for its 17-inch alloys, heating and ventilation for the front seats and heating for the steering wheel, some extra safety kit and practicality perks, and the option of a sunroof or an exterior roof storage box, the latter of which seriously eats into the driving range.

You can choose three different powertrains in the RX - a 3.5-litre V6, a 2.0-litre turbo four-cylinder, or this one, the 3.5-litre V6 with hybrid.

As a series hybrid it can run for short distances on electric only before firing up the V6 to supply charging and motivation.

The 3.5 produces 193kW/335Nm along with the electric motor. That torque figure seems low and it probably is, but that's a function of the weird way of measuring torque from a hybrid unit. The combined power figure, however, is 230kW.

The hybrid system is hooked up to Lexus' CVT auto and sends power to all four wheels. Lexus says the 450h will complete the sprint from 0-100km/h in 7.7 seconds, which isn't bad for a 2210kg SUV.

The Hyundai Inster Standard Range kicks off power proceedings, with a single front-mounted electric motor producing 71kW and 147Nm.

Next is the Extended Range, which shares its outputs with the Inster Cross. Here, the front-mounted motor’s outputs have been ticked up slightly, now producing 84kW and 147Nm.

Those aren’t big numbers, but then neither does either Inster feel particularly slow or underpowered. 

The official combined cycle figure is listed as 5.7L/100km. And, uh, yeah, we didn't get that. I did manage 8.9L/100km over the week, which included a long motorway run from Sydney up to the Blue Mountains (a roughly 160km round trip).

Standard Range cars get a 42kWh lithium-ion battery, producing a driving range of 327km. The Extended Range and the Cross get a bigger 49kWh battery, increasing the range to 360kms. Now, that roof box. It does look cool, but you’re going to really need to carry stuff to choose that option, given it increases energy consumption by 25 per cent, reducing the Cross’s range to just 293km.

When it comes to charging, the Inster is set up for 120kW DC fast charging, or 10.5kW AC charging - provided you have that much power available at home, as most wall boxes are more like 7.1kW.

Right. So this is a salutary lesson about tyre pressures. The first few days the tyres were only pumped up to 200kpa (29psi). That's an easy 100kpa (14psi) short of the required 300 (43psi).

Every time I, or my wife, went around a corner, the big Dunlop Sport Maxx SPs would squeal and squirm and it was most unsatisfactory.

So check your tyres, because the extra 100kpa makes all the difference. Also, the number of service stations it took to find a working pump was unacceptable. Pull your socks up, Sydney.

Anyway.

Correct tyre pressures enacted, the big Lexus turned into a comfortable, competent cruiser. Its motorway performance is super-impressive, purring along the M4 and it's ridiculously poor surface like it was born to it. Which it sort of was.

The hybrid drivetrain allied to the CVT is mostly whisper quiet. It's not the most responsive combination, the initial step-off of the electric motor's torque soon giving way to the rubber band effect of the transmission.

It doesn't feel as swift as the claimed 7.7 seconds and it would be nice if the drive select dial made a genuine difference to the throttle and transmission's response.

In the city, it's a proper wafter, moving about the broken down city streets of Sydney without fuss and a plush ride that's a bit of a surprise given the huge wheels and substantial weight of RX.

It's all very easy and pleasant but the wild looks do not match the experience. Which is not a criticism, just an observation.

Honestly, the impact electrification has had on vehicles in this class is staggering.

It wasn't so long ago that these micro cars were fitted with underwhelming petrol engines, four- or five-speed gearboxes and all the noise-deadening technology of a tin of beans.

As a result, they were cute, but painful. It always felt like you had to wring their neck to get the most out of them, and when you did, they were loud, buzzy and annoying.

But the Inster is none of those things. While not ludicrously powerful, the electric propulsion offered, and the nature of the way it's produced, feels ample in the little Hyundai, with the acceleration smooth, silent and easy,

It's also just generally quiet. Hyundai says it has double-sealed the doors, used thicker glass and fitted full underbody coverings to reduce the NVH - or noise, vibration, harshness - levels, and all of that, combined with the peace and quiet of an electric motor, have created a mostly blissful cabin experience.

The ride and handling hasn't been through the full Hyundai Australia ride and handling calibration of old. Instead, it's undergone the brand's more modern approach, which is to take the best componentry from what's available overseas and then build the Aussie-spec cars from there.

Either way, it all works pretty well here. Only really big bumps clang into the cabin, with the Inster otherwise riding well over all of the road surfaces we encountered.

The point, I guess, is that it's a drive experience stuffed full of happy surprises. The ride, the acceleration and the refinement are all well up on what you might expect from a city car.

The Hyundai Inster is yet to be crash tested, but does arrive with a solid safety offering including seven airbags, as well as active equipment like a auto emergency braking (AEB), rear cross-traffic avoidance, lane keep assist, and active cruise control.

The Cross ups the equipment a little more, including a surround-view monitor, blind-spot monitoring and front parking sensors.

Lexus offers a fence-sitting four year/100,000km warranty with roadside assist thrown into the bargain for the same period. 

Service intervals arrive at 12 month/15,000km and there is, sadly, no capped-price servicing.

Lexus will, however, promise you a car for the day or come and get your car from you and drop it back when the service is done. And it will be washed and vacuumed. The website makes a big deal about that.

The Inster delivers super long service intervals, requiring a trip to the service centre every two years or 30,000kms, but each service is priced at $655. A Toyota Yaris Cross, for perspective, will see you visit the service centre twice as often, but each visit will only cost you $255, or $510 every two years.

The Hyundai warranty is five years/unlimited kilometres, while the high-voltage battery is covered for eight years.