Mitsubishi eK X EV vs Mini Aceman

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.

In many ways - range, performance and purchase price, for instance - the Mini Aceman is decent value, somewhat par for the course and would give its logical competition a proper marketplace run. But it’s better than that. The car’s big point of difference is its retro charm and the fact that it’s been tuned to be a fun drive rather than the non-confronting experience some carmakers strive for.

The performance is strong and the handling and steering serve up a bit of entertainment as well as giving the car a particular flavour. Which, as electric drivelines threaten to homogenise cars even further, must count for something.

Yes, some of what you’re paying goes towards that arguably nebulous notion of 'driving-spice' but once you’ve driven it, you’ll probably know what we’re talking about. A new car purchase is always special, so why not make that specialness last a bit longer with a car that will still be an entertainer long after the showroom thrill has worn off.

Meantime, it’s easy to see why Mini has already begun to run-out stocks of the cheaper E model. The SE still manages to play on that cheeky charm, but offers a more mature vehicle into the bargain. Not a bad trick, really.

Note: CarsGuide attended this event as a guest of the manufacturer, with accommodation and meals provided.

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.

Though vaguely retro on the outside, the real nostalgia hit comes when you step inside the Aceman.

The huge, round central display that’s been associated with the Mini brand since day one, returns, but this time in 240mm, OLED screen form.

The display is also where you get to choose how the instrumentation and information looks, with configurable display incorporating a total of eight modes that alter the colours, sounds and visuals of the screen. Is it cool? Er, yes, actually.

There’s also the Mini personal assistant at your service to crank up the heat when you’re cold and switch on the air conditioning when you’re not (all voice activated) and the personal assistant can also learn stuff such as knowing particular navigation co-ordinates mean you’re at the entrance to an underground car-park, at which point the car will wind down the driver’s window so you can flash your credit card. If you think about it too hard, that’s going to be more creepy than cool for some of us.

The move to electrification, of course, is environmentally driven, so the Aceman’s ethos leans into that, too. There is, for example, a complete absence of leather or chrome, the alloy wheels contain as much as 70 per cent recycled material and are produced with renewable energy.

The floor mats, floor structure and interior surfaces are made from at least 90 per cent recycled polyester, and Mini claims a 98 per cent reduction in greenhouse gases compared with the same stuff made from leather.

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.

Perhaps it’s the packaging designed to play the retro card, but I can’t help feeling the door openings on this car are pretty tight. The rear doors, in particular, seem designed for someone smaller than I, and even once I’m in the news doesn’t really improve.

The Aceman’s rear pew seems tight for both foot and legroom and should you have an adult in the back seat, they’re only going to fit by having somebody smaller in the front seats. The chances of a six-footer (183cm) sitting behind a driver of similar stature are pretty slim (over a distance, anyway).

This is all to do with Mini keeping the overall length of the car to just over four metres, and stuffing a compact SUV into that space.

Perhaps that also explains the giant blind spot formed by the thick B-pillar. Either way, taller drivers will find themselves peering around it when crossing or tuning into intersections.

The seats themselves, however, are quite charming. They look a bit small with their cloth trim, but in reality, they’re comfy and supportive. The pleated John Cooper Works front seats that are standard in the SE are phenomenally good. The only thing missing is that distinct smell of leather we’d normally associate with a 60-grand car.

The traditional row of toggle switches under the central screen remains… sort of. These days, they’ve been modified to act as the starter button for the keyless start system and also the gear selector. The problem is that they’re gloss black on a black background, so they can seem a bit indistinct.

The gear selector has also been reinvented – again – with a separate Park button now to the side of the toggle. The other ergonomic glitch I noticed was every time I went for the interior door handle to leave the car, I fumbled for a second till I located it, tucked up under the armrest.

The clean, uncluttered dashboard means a couple of items have moved to the space between the front seats. So, there’s a pair of cupholders, a small, lidded compartments and a pair of USB charge-points all living in the real estate between the front chairs. That’s in the SE, anyway, because the cheaper E retains only the cupholders.

The luggage space is deeper than a lot of EVs manage and the rear seat folds 60/40 to open up a huge area if you don’t need the seats. With the rear seat up, there’s 300 litres of capacity and, with the seat folded, that leaps to 1005 litres.

There are three child restraint tether points, and the luggage space is served by a 12 volt socket.

There’s also a luggage cover that can be quickly removed for taller items. The tailgate is manually operated.

There are also three ISOFIX attachment points for child seats; two on the rear seat and one on the front passenger seat.

Like the electric Mini Cooper launched last year, the Aceman is available in two versions with some important technical differences beyond the usual trim and equipment stuff most carmakers rely on to locate their models on the price totem.

The E (Electric) model is the most affordable five-door Mini EV with a price-tag if $51,990, driveaway. For that you get plenty of kit including adaptive cruise control, augmented reality navigation, heated front sports seats, a panoramic sunroof, sports steering wheel, 100-watt stereo and a cabin with splashes of nostalgia and piano black in equal measures.

There are also 19-inch alloy wheels and two-tone paint which teams a metallic body colour with a black roof. Wireless Apple CarPlay and Android Auto are included, too. So is dual-zone climate control, keyless entry and start, digital radio and folding exterior mirrors

The SE (Sports Electric) gets a different 19-inch alloy wheel, and adds an extra exterior colour as well as the lovely John Cooper Works front seats with electric adjustment, tinted glass, silver interior highlights, a Harman Kardon stereo upgrade and a different trim grade for the upholstery. All yours for $60,990 which sounds like quite a bit of extra money for those add-ons.

Until, that is, you realise the SE also packs a bigger punch with a bigger battery for more range and a perkier motor for better performance. Ah, so that’s where the money goes.

The catch is the E model is not long for the Australian market (I have never, till now, been invited to the launch of a car that was already in run-out). Local customers have voted with their feet and told Mini the more expensive SE is the one they want for a variety of reasons.

So, the E will continue to be sold here until stocks run out, probably around the end of 2025. And for that reason, the model we’ve driven here is the SE.

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.

Things kick off the with the E model’s 135kW electric motor that also produces 290Nm of torque. That, says Mini, is enough to get it from rest to 100km/h in just under eight seconds. The motor is powered by a 38.5kWh battery living under the floor

The SE gets more battery and more power; 49.2kWh and 160kW, respectively, with 330Nm of torque on tap as well. The claimed 0-100km/h time falls almost a second to 7.1sec.

A single-speed reduction transmission is fitted and the electric motor in both models is a single one, driving the front wheels in true Mini tradition.

Of course, the other aspect of a Mini’s driving experience is its go-kart handling. To that end, the Mini EV is tuned for handling and response and features a MacPherson strut front end and a multi-link suspension arrangement at the rear. Potentially offsetting that sidestep, however, is the car’s heft which, at 1.6 tonnes, is very un-Mini.

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.  

Mini claims a power consumption figure of 14kWh per 100km for the E and 14.4 for the SE. Theoretically, that should give the E a (WLPT) range of 310km and the SE a claimed maximum of 406km.

In reality, you’ll be looking for a power-point before that, because those are both maximum range projections and, in highway conditions, without the regeneration potential of suburban running, you’ll use more power per 100km travelled.

Both version of the Mini EV can use fast chargers, the E model capable of 75kW DC charging, and the SE’s bigger battery able to handle 95kW. Charging at home on an 11kW AC outlet is also possible but, obviously, takes a lot longer to reach full charge.

For DC charging, the Mini uses a CCS Type 2 charging plug.

Speaking of which, on that 75kW fast charger, the E’s battery will go from 10 to 80 per cent charged in 28 minutes, while the bigger battery in the SE will take 31 minutes, its faster charging offset by its larger battery capacity.

At 11kW AC, the Aceman E can go from discharged to fully charged in four hours, 15 minutes, while the SE will take five-and-a-half hours.

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.

Much is made by Mini of its tradition of go-kart-like handling. And fair enough, it’s one of the things that allows the Mini brand to justify a premium price-point. And the good news is that this version, electric driveline notwithstanding, continues that theme. Position the manually-adjustable steering column to the right spot and suddenly, you’re in a car that encourages you to enjoy the drive.

The steering is light but accurate and is actually one of the better calibrated modern, electrically-assisted set-ups we’ve sampled for a while.

The only thing it doesn’t do is give the feeling that you’re sitting right over the physical point in the car that it rotates around when it corners.

Instead, you get the impression of there being a fair bit of Mini nose jutting out in front of you, with the driver’s seat positioned well back in the cabin.

Given the extra length of the five-door layout, that’s not completely unexpected, but it’s something drivers of short-wheelbase Minis will perhaps note.

What that doesn’t affect is the way the car feels tied down pretty well, but never degenerates into a crashing, buck-board. Despite the flat cornering, there’s always some suspension travel left, it seems, and the damping is clearly spot on as it arrests wheel movement without interfering with the fun.

There’s plenty of grip, too, and if you play the Mini game and hustle it through a few corners, the Aceman quickly reveals its fun side, which is precisely the point here.

The instant urge of an electric drivetrain is also very much in evidence and flooring the throttle pedal results in an instant surge of Newton-metres. I could do without the Warner Brothers soundtrack (and I did, by turning it off) but the acceleration itself is pretty impressive without being confronting (as some EVs with their brutal delivery can feel).

The only other thing we’d comment on is a level of tyre and road noise that is far from best in class. Okay, so a bit of tyre roar is okay, and it’s only audible at all because silence from traditional mechanical sources is such an EV thing.

Driver assistance packages abound in the Aceman, starting with adaptive cruise-control, parking assistance, rain sensing wipers and auto headlights, lane-keeping assistance, tyre pressure monitoring and a driver-attention monitor.

There’s autonomous emergency braking that works from 5.0km/h up and can detect cyclists and pedestrians. There’s also blind-spot monitoring, cornering brake control, stability control, rear collision prevention and rear cross-traffic alert and braking.

Inside, you’ll find front, side and head airbags as well as a centre airbag to prevent head clashes in the case of a side impact. There’s also a surround view camera system and rain-sensing wipers.

The Mini Aceman hasn’t been locally crash tested, but other variants of the same platform have been tested in Europe according to Euro NCAP protocols, in which they scored the full five stars for safety.

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 Mini factory warranty was extended a couple of years ago to five years/unlimited kilometres. That’s an improvement on the three years the brand previously covered, but it’s still well short of the seven, eight and even 10 years of some competitors. In the fully electric Aceman’s case, there’s also eight years/160,000km worth of cover for the high-voltage battery. There’s also five years of roadside assistance thrown in.

There are no set service intervals for the Aceman, Mini instead preferring to use the concept of condition based servicing which involves the car telling you when its ready for maintenance. There’s capped price servicing available which costs $1371 for the first four years.

Beyond that, running costs will depend heavily on where and how your charge the car. Charging at home form a solar array will be the cheapest, while using commercial fast-chargers will inevitably ratchet up your running costs.