Mitsubishi eK X EV vs Toyota BZ4X

What's the difference?

And that’s the core takeaway from our time driving the Mitsubishi eK X EV – it’s a near-perfect tool for dealing with inner-urban congestion and tightly-packed city streets. After all, while cars have become progressively more bloated, our roads haven’t expanded in sympathy with that. The tiny measurements of the eK X EV and its slick and seamless electric powertrain allow drivers to flip that paradigm.

But even if Mitsubishi's Australian office chose to bring it here, it wouldn't be the first time the company has experimented with an ultra-compact EV in this country. Remember the i-MiEV from a decade ago? That too was a kei car EV with similar performance stats, however it languished in obscurity thanks to a high $48K price tag and a generally ho-hum offering.

By comparison, the eK X EV feels much more complete and better-equipped, though its price will need to be considerably sharper than the i-MiEV's if it's to convince would-be EV adopters to look away from the entry-level options from Chinese automakers like MG and BYD.

Will Mitsubishi take the plunge? It'll be chasing a niche within a niche if it does, but provided that audience uses the car within its urban-only design parameters, and provided Mitsubishi can offer it for a compelling price, the Japanese company could carve out a meaningful toehold in the EV space at the entry-level end of the spectrum.

The Toyota bZ4X base variant is an uncomplicated car to drive. It has some decent features for its grade level and it is plenty big enough for my little family of three but it doesn’t always come out ahead of its rivals.

It would be an easy EV to dip your toes in if you’re wanting something economical to maintain yet able to fit the family. But it's expensive for what it is.

My seven-year old likes the cool looks but has been confused about Mummy is reviewing the same car again.

As a member of the uniquely-Japanese kei class of vehicles, the eK X EV has to fit within a very specific footprint of 3.4 metres long, 1.48 metres wide, and 2.0 metres tall.

The eK X pushes up right to those limits, measuring just 5.0mm shy of those length and width restrictions while stretching to 1655mm tall, and in order to maximise interior volume each face is almost perfectly vertical and all four corners are right-angles.

The end result is a very angular one-box hatchback, with the raked-back windscreen and bonnet giving the front half a somewhat wedge-shaped profile.

Is it a beauty queen? Not by any conventional standard – it’s more bricklike than beautiful – but like most kei cars its shape is driven by its function.

All four wheels are pushed right to each corner, minimising intrusion into passenger space, and the generous side and rear glass areas allow a great view of what’s around you – ideal for staying out of trouble on crowded Japanese city streets.

Another pragmatic design feature is the presence of roof rails – optional in Japan (¥27,500, or $311), but probably a good idea for those wanting to gain some more cargo capacity by bolting on a roof pod (which would certainly make the eK X EV look even more comically proportioned).

The P grade also brings a roof spoiler and black plastic wheel arch trims (both of which can also be had on the G spec as part of a ¥71,500/$810 bundle that includes the roof rails), which gives the stumpy eK X a smidge of SUV flavour.

And as far as style goes, it’s certainly cohesive with other members of the Mitsubishi showroom. The brand’s narrow-eyed headlamps and X-shaped grille motif translate well to the eK X’s nuggety bod, looking very much like if an Outlander’s visage was squished into a compact 1.48-metre wide cube.

The two-tone paint of our high-grade test vehicle looks modern and appealing (though it’s an expensive option at ¥82,500/$935), while single-tone paint jobs are also available.

However, if you’re a fan of artful vehicle design then the blocky and boxy eK X EV probably won’t excite your retinas.

There’s not much separating the bZ4X from its Subaru twin other than badging and ever-so-slightly different front and rear fascias. The differences are so small only diehard enthusiasts will be able to tell them apart. To me, they look the same on the outside!

The overall look is sporty and fun with lots of pleating in the panelling to give it a futuristic vibe and sharply defined tail-lights for some edginess.

Against our test model's 'Liquid Metal' paintwork the heavy black plastic moulding wrapping around the base of the car doesn't stand out too much but will on a lighter colour.

The internals do differ somewhat and the best change is the more traditional round steering wheel. I prefer the look and feel of it compared to the squared-off shape of its twin's.

The 7.0-inch digital instrument cluster is set a fair way back on the dashboard and looks disjointed from the rest of the tech. The steering wheel also cuts into my vision of the screen and while I could shift my seating position to better accommodate, I'd be compromising my driving comfort to do so. A head-up display would be welcome here.

The dashboard, doors and seats all feature a grey knit-like fabric that looks warm and inviting but the cabin is elevated by synthetic leather trims throughout. Overall, the cabin is quite pleasant but wouldn’t be out of place on a much more affordable car.

While design might not be the eK X’s ace card, space efficiency absolutely is. 

Trust the Japanese to figure out how to make the best use of a compact volume – with compact apartments and ultra-dense cities being the norm for most Japanese people, it’s no surprise they’ve been able to extract the greatest utility possible from something the size of a kei car.

Those in the front seats get to enjoy some fairly cushy (though not super-supportive) chairs, with the driver’s seat being a little wider to cover the gap between it and the passenger seat.

Folding up the centre armrest also allows the driver to slide across to the left seat, perfect for getting out of a confined parking spot… or dates at the drive-in.

The steering column only adjusts for tilt and not reach, which is a bit of an ergonomics fail, but generally speaking there’s a surprising amount of room for ‘Western’ frames.

The manually-adjusted seats can slide a fair way back, headroom is substantial, outward vision is superb and, thanks to the narrowness of the eK X, literally everything is within arm’s reach.

The long shelf that spans the dash at mid-height is also a useful feature, an ideal perch for small items like keys, wallets, tissues and phones, while the cupholders are moulded into the dash itself and the climate control and shifter quadrant are housed in their own extension of the centre stack.

Below the climate controls, a bag hook is perfect for toting takeaway, purses or small grocery bags, and there’s some additional shelves and cubbies along with a USB-A, USB-C and 12-volt charger.

Peek under the passenger seat, and an under-seat stowage tray reveals itself, too. There’s even a pull-out compartment in the passenger door to house the owner’s manual. Everything in its right place.

Granted, with limited width there are some constraints on passenger space. The eK X’s rear bench only has room for two seats rather than three, but there’s enough shoulder room available to ensure it’s not as claustrophobic as you might think, and the rear bench is even mounted on sliding rails, has a reclinable backrest and offers more cushion length than the front seats.

With the seat slid all the way back there’s quite a lot of legroom for back seat passengers, while sliding it forward allows at least one piece of large luggage to sit in the boot while still giving enough space for passenger’s feet.

Other quality-of-life touches include some storage pockets high up on the front passenger’s backrest as well as bottle holders and cupholders integrated into the rear door cards, though, unlike the front seats, there’s no fold-down centre armrest or face-level air vents.

Mitsubishi doesn’t publish a cargo volume for the eK X EV, but the boot opening measures 1105mm wide and 875mm tall, with depth variable depending on the position of the sliding rear seat.

The rear seat backrests also fold down (though not flush with the boot floor), and supersized cargo can also be accommodated by reclining the front passenger seatback all the way so you can tote objects up to two metres long.

Under the boot’s floor hides an inflator kit and charge cable storage, though there’s no cargo blind.

The cabin is very spacious with generous leg- and headroom. I have plenty of room for my 168cm (5'6") height but my 183cm (6'0") father was also very comfortable in both rows.

The seats in both rows are well-cushioned and up front, the driver’s side has ample support from the two-way powered lumbar. I also like the way both front seats are heated. You could handle a long trip even as a passenger prince/ss.

Individual storage is less generous than you’d expect for the class given you don’t get a glove box but there are still enough nooks and cubbies for some items and a shelf underneath the console can fit a small handbag.

My seven-year old discovered a secret pocket underneath a removeable box in the middle console where Toyota has stored the manual and logbook.

Up front you also get two cupholders, four drink bottle holders (two in each door) and a handy cubby behind the rotary transmission shifter. In the rear you get map pockets, two cupholders and a device holder in the fold-down armrest and a large drink bottle holder in each door.

No complaints from my kid regarding the amenities in the back and he likes having his own directional air vents and reading lights. But it's the 182mm ground clearance we all love because the bZ4X is super easy to get in and out of. Definitely no grunts in this one!

There's no frunk storage but the boot's 421L capacity will suffice for your bigger grocery run or odd trip but the capacity is lower than some rivals. Underneath the level loading space there's a retractable cargo liner, two cable pouches, a first aid kit and the tyre puncture repair kit. I like the powered tailgate on the base model. I find them handy with a kid in tow.

Technology is well-rounded and upmarket. The 12.3-inch touchscreen multimedia system is responsive and easy to use but the customisations for internal features are a little lacking. The built-in satellite navigation is clear and there is a dedicated Toyota services app, too.

The wireless Apple CarPlay is simple to connect to and I didn't have any dropouts with calls or connections, which is great. There is also wireless connectivity for Android Auto users.

Charging options throughout the car are solid with each row getting two USB-C ports, while the front also features a USB-A port and 12-volt socket. However, there’s no wireless charging pad or V2L (vehicle-to-load) capability which might annoy over long-term use.

There are two variants for the bZ4X range, with the base model tested here being a front-wheel drive and only sporting a single motor. This entry-grade is priced from $66,000, before on-road costs, and the top AWD variant is $74,990 MSRP.

Compared to the bZ4X's single-motor rivals, this price tag positions the Toyota right in the middle for costs with the most affordable rival being the Tesla Model Y RWD for $55,900 MSRP, then the Kia EV6 Air at $72,590 MSRP.

Although very similar, Subaru is offering its base variant as a dual-motored AWD, but for price comparisons it is $69,990 MSRP.

For a base model, you get some solid features like heated front seats, built-in satellite navigation, built-in Toyota connected services app and wireless Apple CarPlay and Android Auto.

The upholstery also features synthetic leather accents rather than just plain black cloth and you get an upgraded JBL sound system.

Like its Subaru twin, only the driver's seat is powered with lumbar support but both feature those heat functions.

Other standard features include keyless entry, push-button start, dual-zone climate control, Bluetooth connectivity, a tyre puncture repair kit and digital radio.

Technology is also rounded out by the 12.3-inch touchscreen multimedia screen, 7.0-inch digital instrument cluster and four fast USB-C ports.

There are a few items missing in this variant that feature in a lot of its rivals, which reminds you this is a base model. Things like heated rear outboard seats, a heated steering wheel and a sunroof, all of which would be easy to accept if the car wasn't edging close to $70K.

The eK X EV is powered by a single electric motor connected to the front wheels, and while all kei cars are limited by Japanese law to just 48kW, torque output has no such limitation.

Thanks to that loophole, and the generally torque-rich nature of an electric motor, the eK X EV produces peak torque of 195Nm, which is just 8.0Nm shy of the heavier petrol-powered Toyota Corolla.

A 20kWh lithium-ion battery pack supplies the motor with power, and is located under the vehicle’s floor. It’s a small battery, but it’s also a small car.

According to Mitsubishi, 20kWh is all most eK X EV drivers should need, but it’s about a third the size of typical EV’s battery these days.

The bZ4X base variant is a front-wheel drive and has a single electric motor producing 150kW/256Nm - which sounds a bit schlumpy compared to its rivals but its pick up is great and you don’t feel it's underpowered, even when you’re on the open-road.

Our short (just under 30km) test drive was done entirely at urban speeds, with no significant highway component.

That plays into an electric car’s strengths, with minimal energy being used to fight aerodynamic and tyre drag, while the constant speeding up and slowing down for traffic and stop lights means a lot of energy gets put back into the battery via the regenerative braking system.

At the end of it, after using 23 percent of the battery (4.6kWh) to travel 28.3km, our average energy consumption measured in at 16.25kWh/100km, which is about par for a modern EV.

However, we were expecting a significantly lower result given the eK X EV weighs only 1080kg – half the weight of a Kia EV6 AWD. And Mitsubishi claims an average energy consumption of 12.4kWh/100km, with a city-only figure of just 10.0kWh/100km.

Couple that result with a 20kWh battery, and the eK X’s real-world range looks a lot more like 123km instead of the 180km WLTC Mitsubishi claims.

Granted, Tokyo traffic and streets aren’t a perfect analogue for Australian conditions, but there seems to be a big disconnect between the factory numbers and what we could achieve. Even for a city car, a circa-120km range may not be seen as sufficiently generous in Australia.

That said, there’s more than one way to deploy this car’s stored energy. You can use the eK X EV’s vehicle-to-load function to power household appliances through an adaptor, while another intriguing feature is the car’s Vehicle-to-Home (V2H) bi-directional charge capability.  

With V2H, a single connector can make the eK’s battery pack the source of power for an entire building. Useful in the event of a grid power outage, which is a real consideration for disaster-prone Japan.

As for regular charging, the eK X EV has a slightly oddball configuration. Open up the charge port flap on the driver-side flank and you’ll see an old-school Type 1 CCS connector positioned above a chunky CHAdeMO port.

While the latter is useful for bi-directional charging and has significant headroom for high-voltage fast charging, the Type 1 CCS port is probably less useful in Australia given most modern electric cars have moved to the more capable Type 2 CCS design.

If the eK X is to make any sense in Australia, that’s something that would likely need to be addressed along with its seemingly short legs.  

The official energy consumption figure is 16.9kWh/100km and I averaged 16.1kWh over a mix of urban and open-road driving. The consumption is good and on par with some of its rivals but the official driving range from the large 71.4kWh lithium-ion battery is up to 436km, which is lower than most of its rivals by a good portion.

The bZ4X has a Type 2 CCS charging port which means you can benefit from faster DC charging speeds, up to 150kW. On a 150kW DC system you can go from 0-80 per cent in around 40-minutes.

On a 7.0kW AC charger, you can go from 10-100 per cent in 9.5 hours and that drops to seven hours on an 11kW system. All the bZ4X figures are good enough to avoid the inconvenience zone but aren't as fast as some of its competitors.

Kei cars are something of a unique experience to begin with, an electric one even more so. Besides those compact dimensions giving it the ultimate ability to cut through dense traffic, the addition of an electric powertrain endows it with the torque necessary to feel properly zippy around the city.

And by ‘zippy’, we’re not joking. With all of that torque being channelled through a pair of skinny eco tyres on the front axle, the eK X EV has little trouble squealing its tyres if you’ve got a heavy right foot.

It might be tiny but it moves with the feisty urgency of a Jack Russell, and thanks to its kerb weight of just over a tonne, it’s a nimble and light-footed thing.

It’s a shame the steering is so lifeless, though at least its fingertip-lightness makes easy work of lane changes, U-turns, and everything in-between.

There are three drive modes – 'Eco', 'Normal' and 'Sport', but they just change the throttle sensitivity and alter the strength of the regenerative braking.

Alongside this, a one-pedal accelerator model allows the bulk of speeding up and slowing down to be accomplished by modulating the throttle pedal, but you still need to move your foot to the brake in order to come to a complete halt.

We drove mainly in Normal mode without the one-pedal function activated, and the car felt smooth and easy-going.

Power delivery is linear, the regenerative braking feels natural, with no noticeable step between regen and mechanical braking, and there’s just a faint hum from the motor and inverter when power is being delivered or generated.

It’s difficult to form an opinion on the eK X EV’s suspension. Kei cars aren’t typically the best when it comes to ride comfort, handling, or any other discipline that requires suspension talent, but we can say that it was at least reasonably comfortable.

Take that assessment with a grain of salt, though. The perfectly-graded streets of central Tokyo are ultra-flattering to any car, and with little in the way of huge imperfections, weird camber or any other kind of challenging surface, we’d have to reserve suspension judgements until we can drive it on more varied roads.

That said, for its intended purpose of crushing short journeys through inner-city environments the eK X EV does a stellar job.

You don’t often notice this base model is a front-wheel drive until you accelerate too quickly from a standstill and tlose a bit of traction. Otherwise, power delivery is smooth and while you don’t get a tummy-sucking-sensation when you put your foot down the power satisfies for city and open-road driving.

The steering feels light and there's a fair bit of understeer when tackling winding roads. This made the handling a bit lacklustre at times but it’s not too intrusive in an urban environment. Just remind yourself it’s not a performance EV if you ever start thinking ‘fast and furious’ thoughts.

Ride comfort is very good and I’d attribute that to a well-cushioned suspension set-up. While you notice bumps, you’re not bothered by them, even in the back seat. The cabin is peaceful and quiet most of the time but road noise creeps up a lot at higher speeds.

Visibility is excellent and despite a few little things, like the steering, it’s an uncomplicated car to drive.

The bZ4X isn’t too hard to park because the reversing camera is relatively clear but this grade would benefit from the 360-degree view system which is available on the top-grade model. The 4690mm length, 1860mm width and 1650mm height makes it a happy-go-lucky friend in a small car park.

The bZ4X comes with some good standard safety features like a full suite of LED lights (including the DRLs), lane departure alert, lane keeping aid, traffic sign recognition, seatbelt warning, adaptive cruise control as well as a reversing camera supported by front and rear parking sensors.

Unfortunately, the base model misses out on items the top model features like blind-spot monitoring, 'Safe Exit Assist', driver attention monitoring, rear-occupant alert and rear cross-traffic alert. All of which are fairly big-ticket items and available on much more affordable Toyotas.

Still, the bZ4X achieved a maximum five-star ANCAP safety rating from testing done in 2022 and has seven airbags, including a front centre bag.

It has AEB with forward collision warning as well as car, pedestrian and cyclist detection which is operational from 5.0-80km/h (and up to 180km/h for car detection).

There are ISOFIX child-seat mounts on the rear outboard seats and three top-tether anchor points. Two child seats will fit best, though.

The eK X EV is not yet offered in Australia, so at this point in time it’d be premature to put a number on ownership costs, maintenance, warranty coverage and things like that.

However, with a 20kWh battery it would cost somewhere between $4.20 and $7.00 for a full charge on household power depending on where you live and the kWh rate your energy provider charges you.

As always, those with solar generation and/or home battery storage could whittle those running costs down to practically nothing.

The bZ4X comes with a five-year/unlimited km warranty and the battery is covered by an eight-year or up to 160,000km warranty. Both are usual terms for the class.

There is a five-year or up to 75,000km capped priced servicing plan and annual services cost just $180, which is very competitive.

Servicing intervals are more in line with a fuel-based car at every 12-months or 15,000km, whichever occurs first.