Mitsubishi eK X EV vs Rivian R1T

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.

Having finally experienced the Rivian R1T from the driver's seat I think this is a ute that would have plenty of appeal in the Australian market. Not as a competitor to a Toyota HiLux Workmate or similar working-class ute, but as an alternative to the likes of the HiLux Rogue, Ford Ranger Raptor or even the new Ranger Platinum.

This is a high-end, luxury ute that also happens to be electric, which only expands its appeal. It has seriously impressive performance and, while we didn't get to test them first-hand, strong off-road credentials. Add to that a premium look and feel to the cabin and loads of practicality and it's easy to see this finding an audience here.

The biggest question will be cost, because even at a direct price conversion (which isn't a clear reflection of shipping and local tariffs) the R1T will start well over $100,000. Even by today's standards of six-figure US utes like the Chevrolet Silverado 1500 and incoming Ford F-150, that will be a hard sell and could restrict its chances.

Which would be a shame because while Tesla has a clear head start in Australia, it's possible for Rivian to follow in its wheel tracks and have plenty of mainstream success.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, 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.

There's a lot to say about the design of the R1T. Unlike Tesla, which has gone radical in the design of its Cybertruck, Rivian clearly made a decision not to be too polarising but also leverage the advantages of electrification. The result is a ute that stands out even amid the glut of pick-ups on American roads.

Rivian also opted not to compete directly with the massively popular Ford F-150, Ram 1500 and Chevrolet Silverado in the US, instead sizing the R1T in what's considered the 'compact pick-up' market in the US. That makes it pretty much on par with the likes of the Ford Ranger and Toyota HiLux that we flock to in Australia. The R1T measures 5514mm long, 2077mm wide and 1986mm tall, which compares to 5446mm, 1852mm and 1977mm for the Ranger dual-cab.

Inside, like so many modern cars (and not just EVs), Rivian has opted for a minimalist design aesthetic, running almost every function through the central multimedia touchscreen, with only two physical buttons in the entire cabin, a pair of dials/buttons on the steering wheel and a pair of stalks behind the wheel (left for the indicators and right for the gear selector).

There isn't even a button to alter the power adjustable steering column, instead steering wheel position and mirrors are controlled via the touchscreen and the dials on the wheel. You have to select what function you want and that activates the wheel switches, allowing you to adjust for both reach and height.

It's arguably an unnecessarily complex system for something that should be simple, but for owners that can most likely do it once and then save their preferred position it's ultimately not a big deal; still, would one small button set on the steering column have been that complicated?

As you should expect for the price, the R1T quad-motor has a premium look and feel to its interior. The synthetic leather and dark ash wood make for a luxury car feeling, feeding to that simplistic but very hi-tech and polished design aesthetic.

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.

This is one of the areas that Rivian has excelled at and it makes the R1T a real standout in its class. Because it's a bespoke design there are a number of clever practical features around the cabin.

Starting with the Bluetooth speaker that slides out of the centre console. So you can play your music through the car's speakers or, when you leave the car, take your tunes with you. The sound system is another in-house Rivian set-up, like the multimedia, with the company splitting with original partner, audio specialist, Meridian.

Other clever interior touches include the charging pad (complete with tiny Rivian logo pattern), a sizable centre console box and a torch recessed in the door. There are also a power outlets in the cabin, rather than just USB ports, so you can charge your electronics on the move.

Rivian has also developed a 'Pet Mode' for the cabin, which the company claims allows owners to safely leave their pets in the car. The system allows the air-conditioning to keep running, even while the ignition is off, so your pet doesn't get overheated or freeze, and the media screen displays a message saying that your pet is okay (so no good Samaritan smashes your window to save your animal friend).

The R1T's other major party trick is the 'cargo tunnel' that runs the width of the car, taking advantage of the empty space between the cabin and the tray. This is a unique feature for the R1T, allowing for an extra 331 litres of lockable storage, which can be accessed on both sides or through the cabin via the rear seats.

Rivian even showed off a 'Camp Kitchen' that could slide in and out of the tunnel. This elaborate accessory was designed to make camping easier, featuring an induction cooktop, sink and crockery, but it has since been removed from the company's website as it is reportedly redesigned. Hopefully it's available again by the time the R1T makes it to Australia.

This would work in tandem with the 'Camp Mode' function that lets the ute self-level its suspension so the body is flat on uneven ground and turns off the exterior lights and sounds not to distract others, while still allowing you to use the power outlets in the tray and cargo tunnel.

As for the space in the cabin, it's good in the front and rear. With a 3449mm wheelbase there's generous room for the rear occupants that allows for two adults to sit in comfort, and Rivian claims it's wide enough for three child seats.

As for storage, in addition to the cargo tunnel, there's under bonnet storage measuring 314 litres, so there's plenty of out-of-sight space despite it being a ute.

The tray measures quite square, at 1374mm long and 1297mm wide, but Rivian has designed the tailgate to sit flush with the tray bed, which can extend the usable length to 2131mm.

The tray itself has several handy features. These include multiple power outlets and an air-compressor, so you can add extra pressure to your tyres if you let them down to go off-roading or pump up camping equipment.

Underneath the tray is the housing to keep the spare tyre on the off-road package, but as a spare isn't available on all models as standard, it can be used as storage for wet or dirty items because it's washable and has a drainage hole.

As many of these new car companies have found, including Tesla with its long-gestation periods for the Model 3, Model Y and now Cybertruck, mass-producing motor vehicles isn't an easy task. So, to simplify things and help get its business up and running, Rivian has focused on a single R1T variant for the US market initially.

This is the range-topping quad-motor R1T, with four electric motors (two per axle), which is priced from US$89,000 (approx. A$139,000)

That should give you an idea of where Rivian has positioned the R1T in the US market. This isn't a 'working-class ute'. This is one of the new breed of lifestyle vehicles that have become increasingly popular in the US and Australia.

Rivian has plans for a more affordable dual-motor (one per axle) model, which will start at US$73,000 (approx. A$114,000), and be able to be upgraded with a 'Performance' motor package for US$5000 or the choice of a 'Large' battery for US$6000 (approx. A$9000) or the 'Max' battery for US$16,000 (approx. A$25,000). We'll explain the technical difference between those motors and batteries below.

As for standard equipment, the R1T comes with a 21-inch alloy wheel and 'road' tyre, a built-in air-compressor, 'Gear Guard' security cable (again, we'll explain in-depth later), synthetic leather trim, dark ash wood inlays, heated and ventilated seats and a heated steering wheel.

Notably absent is Apple CarPlay and Android Auto, with Rivian preferring its own bespoke Google-powered system.

There is an 'All-Terrain' package available, too, which swaps out 20-inch alloys with all-terrain tyres, underbody protection and a full-size spare, that's stored under the tray.

Rivian also offers a variety of accessories including MaxTrax recovery boards, first aid kits for humans and pets and an off-road recovery kit that includes straps, hitch link and gloves.

The company has also partnered with Yakima, an American company that specialises in adventure accessories, to offer a roof-mounted tent for the R1S (but doesn't currently offer it on the R1T configurator).

And if that's not enough accessories for you, Rivian sells a huge array of branded merchandise via its website, including shirts, hats, chargers, bike mounts, drink bottles and even pet gear.

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.

There are three main powertrain options for the R1T - Dual-Motor AWD, Performance Dual-Motor AWD and Quad-Motor AWD.

Even as the entry-level model the Dual-Motor AWD makes 397kW/827Nm and can sprint from 0-60mph (96km/h) in just 4.5 seconds.

The Performance Dual-Motor AWD steps things up to 495kW/1123Nm and a sprint time of 3.5 seconds, while the Quad-Motor makes a very potent 622kW/1231Nm and takes just 3.0 seconds to run 0-60mph.

The Quad-Motor we tested comes standard with eight 'Drive Modes' that adjust the ride height, suspension stiffness, brake regeneration, stability control and torque distribution. The eight modes are - 'Sport', 'Off-Road Drift', 'All Purpose', 'Off-Road Auto', 'Off-Road Rock Crawl', 'Off-Road Rally', 'Conserve' and 'Towing'.

The ability to change torque distribution is the key function, as it allows for a wide variety of driving characteristics. For example, in Sport and Off-Road Drift it can send the majority of the power to just the rear wheels, allowing the R1T to perform like a rear-wheel drive vehicle. While in the Conserve setting it can send power only to the front motors to save energy. Or in the Rock Crawl setting it can send power to individual motors to help climb over obstacles.

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 range of the R1T depends on how much you're willing to spend. The standard battery provides 435km for the Dual-Motor AWD but if you pay for the Large battery that extends to 560km while the Max battery buys you a range up to 640km.

The Performance Dual-Motor comes standard with the Large battery, so it has a range of 560km with the option of 640km with the Max battery.

The Quad-Motor comes equipped with the Large battery as standard and has a 530km range, but it isn't available with the Max battery.

Rivian claims the R1T has a 220kW max charging rate on a DC fast charger. The company is rolling out its own network of charging stations in the US but crucially it also recently signed a deal with Tesla. 

A new 'Magic adapter' is now available so Rivian owners can access Tesla's network of more than 12,000 chargers in the US. Hopefully that deal carries across to the Australian market when Rivian arrives here.

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.

Like all EVs the R1T manages to combine rapid performance with a whisper-quiet powertrain, but what stands out is how refined the Rivian feels. For a car company's first effort the level of isolation you feel from the outside world is impressive. It doesn't have any of the squeaks, rattles and mechanical groans that plagued some other start-up EV car companies in their early days.

Instead, the R1T feels like a very complete and well resolved package. Like many modern EVs, starting it up is as simple as climbing into the driver's seat, with a sensor immediately preparing the car for you to head on your way without needing to press a 'start/stop' button.

Tap the gear selector stalk down for 'Drive' and you immediately experience the immense torque from Rivian's quad-motor powertrain. Even at suburban speeds you get a sense of the power that lurks beneath the surface of this ute.

Once we found a safe spot to unleash the full potential of the four motors they did not disappoint. It has the kind of sickening acceleration that we've come to expect from electric vehicles, with Rivian's 0-60mph (0-96km/h) claim of just 3.0 seconds feeling completely legitimate.

The regenerative braking is extremely powerful, and that's a pro and a con. That's because there are only two modes - standard and strong - but even in the lower setting there's powerful retardation as soon as you release the accelerator. This is very much an EV that can be driven on one pedal, which is fine, but it does take some getting used to.

A number of carmakers have begun offering much lower levels of regen braking, which allow you to drive more like a conventional internal combustion engine vehicle by using both the accelerator and the brake pedal, so perhaps a lower setting is something Rivian will have to consider in the future.

It also doesn't help that adjusting the regen braking is another function that requires you to dive back into the touchscreen menu, rather than using steering wheel-mounted paddles like other EVs have adopted.

The ride felt quite firm on the streets of Los Angeles, but that's not entirely surprising for what is a very heavy vehicle (it tips that scales at just over 3250kg) that's riding on 21-inch alloy wheels. However, given air suspension is standard across the range, it feels like it could be tweaked to make for a more compliant ride, especially on Australia's choppy roads.

The standard air suspension also allows for a variety of ride heights for improved off-road performance, with R1T able to adapt from as low as 241mm in 'Sport' mode all the way up to 378mm in its 'rock crawl' setting.

The R1T comes fitted with the usual array of airbags and passive safety systems, but Rivian founder Scaringe spent years working on autonomous vehicles as he built up his company so there's an array of active safety features that make the ute semi-autonomous.

Rivian calls this system 'Driver+' and it features all the now-normal active safety items like autonomous emergency braking, adaptive cruise control, lane change assist, lane keeping assist and blind-spot warning. The combination of these systems allows for some mild autonomous functions under the right circumstances.

Another interesting safety feature is called the 'Gear Guard' system. It's a complex system that includes a camera array, an external warning system and a physical cable in the tray.

Rivian calls it a 'family' of technologies but in simple terms it uses five of the pick-up's 11 cameras to monitor the surrounding area and sound an alarm if people are getting too close. If it sets off the alarm, the car will also send you a text message alert so you can check what's happening.

It also includes the Gear Guard cable, which is a braided steel cable with a nylon cover that you can thread through anything - such as a bike or other sporting equipment - and then lock into a connection built into the tray. Again, it uses the cameras to record anyone getting too close so you know who's tried to pinch your stuff.

The system also includes a cute monster mascot that pops up on the media screen to let people know they are being recorded. Plus it gives Rivian something to put on t-shirts to sell on their website.

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.

In the US Rivian offers a five-year/60,000-mile (approx. 96,000km) warranty for the quad-motor models and a four-year/50,000-mile (approx. 80,000km) warranty for the rest of the range. But the battery and drivetrains are covered for up to eight years.