Mitsubishi eK X EV vs Subaru Impreza

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 2024 Impreza delivers on all the key things which have made the nameplate so well regarded for the last 30-odd years.

The issue is, buyer expectations have moved on. Hatchbacks need to do more than ever to compete with small SUVs, and with today’s fuel prices it’s far more valuable to offer hybrid rather than all-wheel drive.

This is why, despite the sixth-generation Impreza being a tidy high-tech offering with an admirable commitment to safety, I think it will ultimately continue to shrink its market share. This Impreza really is one for the fans.

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.

Over the years the Impreza has changed in its design and intention so much.

Once known primarily for its sporty sedan variants, today’s Impreza is a far more contemporary hatchback, forgoing the once wagon-like shape for something with the traditional bubble silhouette to align with its rivals.

For better or worse, it also syncs up with the rest of Subaru’s range, with the brand’s current design language on full show, but it also barely evolves from the previous-generation version from the outside.

It trades the chunky square light fittings from the previous car for something a bit more refined this time around, with a similar look and feel to the WRX and Outback.

Inside also gets a similar fit-out to other Subarus in the range, complete with a raised centre console, shapely dash, and the same huge screen from the Crosstrek and Outback which dominates the space and helps simplify things compared to the busy interior and multiple screens of the previous car.

It’s a cosy space with chunky comfortable seats and the signature bumper car steering wheel is a stand-out bit of Subaru design.

Even the base car with its plastic trimmed wheel and basic cloth trims in the door is basic in an almost refreshing way, but unlike some rivals manages to be comfortable, too, thanks to soft trims for your elbows in the doors.

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.

Living up to the adventure-ready Subaru promise, the Impreza's interior is quite functional.

Even though many controls have moved to the big central screen, there are individual buttons for temperature adjustment and a permanent touch function for fan speed on the lower third of the screen.

It would be nice to see a full set of physical buttons for climate functions, but this seems like a decent compromise.

Elsewhere there are large bottle holders in each door with a small accompanying pocket, two more rigid bottle holders in the centre console, a small tray behind them, and a huge armrest console box.

Under the multimedia screen there is a bay with a wireless phone charger, but like the Crosstrek, it is finished in a hard plastic material, which means your phone will easy slide around and out of the charging area in the corners, which seems like an oversight.

Adjustability is great, even in the base car, with flexible seats and a wide range of movement for the wheel, letting you easily find a suitable seating position. Width in the cabin is okay, but headroom is excellent.

The back seat offers a solid amount of room for myself behind my own seating position, at 182cm tall, but the middle position is no good for an adult thanks to the presence of a large raise in the floor to allow for the all-wheel drive system underneath.

Amenities for rear passengers are only okay in the base car, with a large bottle holder in the door and a further two in a drop-down centre armrest. There are no adjustable rear air vents or USB power outlets in the L, but outlets are added in the R and S.

Boot space is on the small side, with only 291 litres (VDA) on offer. The high floor means a limited amount of space with the luggage cover in place, although I was surprised to find we could fit the full three-piece CarsGuide luggage set once it was removed, so long as you’re okay not being able to see out the rear window.

Under the floor, the Impreza sports a space-saver spare wheel - a must-have for long-distance regional travellers.

Now in sixth-generation form, the 2024 Impreza range has been trimmed down to just one hatchback bodystyle and three trim levels - the base L, mid-spec R, and top-spec S.

True to Subaru form these variants are all priced quite close together, and the base L comes with pretty much all the kit you’ll need, with the R and S grades adding mainly luxuries to the equipment list.

Now starting from $31,490, before on-road costs, the Impreza is not as affordable as the previous-generation version, and while it manages to pack a relatively high level of standard equipment, some of its key rivals are a bit cheaper in a segment where every dollar matters.

For example, you can get into a hybrid version of Toyota’s Corolla (Ascent Sport Hybrid - $32,110) for similar money to the entry level 2.0L, the Kia Cerato can be had for under $30,000 (Cerato S Auto - $27,060) while the outgoing Hyundai i30 is significantly cheaper in its most basic trim level (i30 Auto - $26,000).

What might make you think twice is the Subaru’s standard all-wheel drive, where all of its rivals are front-wheel drive, but in an environment where fuel costs are high, I can understand why people would prefer to see a hybrid version instead.

Unlike the Impreza’s Crosstrek small SUV relation, there’s no ‘e-Boxer’ hybrid variant.

Still, standard equipment is high even on the base 2.0L. Included are 17-inch alloy wheels, LED headlights, a massive 11.6-inch multimedia touchscreen with wireless Apple CarPlay and Android Auto and you even get a matching wireless phone charger.

Elsewhere the base car gets cloth seats with manual adjustment, a plastic steering wheel, analogue instrument cluster with a small digital display, and importantly, the majority of Subaru’s very good active safety equipment is standard.

So, what do you get for stepping up the range? At $34,990, the 2.0R adds premium cloth seat trim, additional charging ports in the rear, eight-way power adjust for the driver, heated front seats, a leather steering wheel and shifter, steering responsive LED headlights, and LED fog lights.

At the top of the range, the $37,990 2.0S adds a 10-speaker audio system, built-in sat-nav, an electric sunroof, and synthetic leather seat trim.

The cabin tech, safety, and standard all-wheel drive are the real draws, but you have to want them. The Impreza isn’t the stellar value buy it once was.

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 Impreza is equipped with just one engine and transmission for its sixth-generation, a 2.0-litre (FB20) four-cylinder horizontally-opposed ‘boxer’ engine mated to a continuously variable automatic transmission, driving all four wheels via the brand’s signature ‘symmetrical’ permanent all-wheel drive system.

The FB series is a development of the successful EJ series engines which lasted from 1989-2021. This more recent engine has new material science, heads, and seals which have helped the brand push service intervals out to 12 months rather than six, and should address issues which the older engines developed over time.

Power is on-par, but not a stand-out in the segment, with peak outputs of 115kW/196Nm.

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.  

One issue with having a non-turbo, non-hybrid 2.0-litre engine with all-wheel drive is relatively high fuel consumption. The Impreza has an official combined cycle fuel consumption figure of 7.5L/100km which is less than impressive in today’s market of hybrids and downsized turbocharged engines.

In my week of mostly stop-start city driving, the test example drank 11.1L/100km, which is disappointing.

Mercifully, it is capable of running on 91RON unleaded. For those who care, the CO2 output is officially 170g/km which is well above the 140g/km it would need to be at to avoid the wrath of incoming vehicle emissions regulations.

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.

Have you driven a Subaru in the last 10 years? The drive experience here is pretty much uniform with the rest of the automaker’s range.

This means a lot of very appealing traits. For example, the new Impreza has a comfortable, compliant ride, really nicely weighted steering, and solid handling even on slippery surfaces courtesy of the all-wheel drive system.

The FB series engine also has a good bit of pull fairly early in the RPM range which makes it deceptively spritely, although power really hollows out the more you push it.

This makes it nice to drive around town, but less impressive when it comes to overtaking on the freeway.

This is reinforced by the continuously variable automatic which lends the engine a thrashy, rubbery character when pushed, but is nice and predictable at lower speeds.

The rev-happy engine is also quite noisy when a lot is asked of it, and like a lot of Japanese cars, but Subarus in particular, tyre roar picks up in the cabin above 80km/h.

It’s a comfortable and family-friendly drive, and I particularly like the way the plethora of active safety systems sit by the wayside and don’t interfere with the overall experience.

It is just a bit of a shame it doesn’t move the drive experience forward by a huge amount. The current Impreza doesn’t feel meaningfully different from the fifth-generation version which debuted in 2016.

The majority of active safety equipment is standard across all three Impreza variants including auto emergency braking up to freeway speeds with reverse auto braking, lane support systems, blind-spot monitoring with rear cross-traffic alert, traffic sign recognition, lead vehicle start alert, driver attention alert, and adaptive cruise control.

Stepping up to the 2.0R or 2.0S nets you the front parking camera for a 360-degree parking suite, and high-beam assist for the LED headlights.

Expect the usual traction, brake, and stability controls, alongside the more modern torque vectoring system and an impressive suite of nine airbags. The new Impreza is yet to be rated by ANCAP.

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.

Subaru offers its fairly standard five-year and unlimited kilometre warranty on the Impreza, with 12 months of roadside assist included.

There is also a five-year fixed-price service program covering the first 75,000km, although it’s nowhere near as affordable as the Corolla or i30, coming in at an average annual cost of $464.64.

The Impreza needs to be serviced once every 12 months or 15,000km, whichever occurs first.