Hyundai Elexio vs Mercedes-Benz E400

What's the difference?

The Elexio doesn't really push any boundaries in terms of its exterior design, its powertrain, or its battery. It doesn't drive itself. It doesn't look like a spaceship. And apart from some interior quirks, it's all pretty familiar in the way it goes about its business.

And I think maybe that's the point. Maybe that's what people are really looking for. Because Hyundai says this will be its best-selling EV in the country. And on our short test, we can't find too many reasons to disagree.

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

Note: The author, Andrew Chesterton, is a co-owner of Smart As Media, a content agency and media distribution service with a number of automotive brands among its clients. When producing content for CarsGuide, he does so in accordance with the CarsGuide Editorial Guidelines and Code of Ethics, and the views and opinions expressed in this article are solely those of the author.

A convertible that doesn't feel like one when the roof is in place is no easy task to build, but it's one Merc's engineers have pulled off with the E400 4Matic Cabriolet. Effortless power, a tonne of technology and a comfy, leather-wrapped cabin all make Merc's drop-top E-Class a strong proposition.

I don't want to sound boring, but the thing I really like about the Elexio exterior package is there's nothing too challenging about it. Some of the Hyundai Ioniq cars can be a bit more polarising (and, in the case of the Ioniq 6, a lot more polarising) but there's none of that going on here.

It feels very clean, fairly timeless and like it's going to age pretty well. In short, it looks like a familiar family SUV with only really the full-width light bar, the cubed headlights and a bit of an architectural flourish at the rear three-quarter – which actually reminds me a bit of the Kia EV5 – giving it a more modern edge.

The wheels are 20 inches, there are only a handful of fairly predictable colours and it all just feels really familiar. But, as I mentioned, things do get a bit more out-there in the cabin.

Let's start with the good. I really like the fit and finish. It all feels very high quality and the materials used are lovely, including the velvet-like fabric in the door panels. I also like the square-edged steering wheel.

But the not so good? Now, the central screen looks great, but it controls everything – and I do mean everything. Apart from the steering-wheel controls, I couldn't locate a single physical button in the cabin.

Elegance. That's the word that springs to mind when you first clamp eyes on the E400 Cabriolet. While the Coupe version has a crouched-over sportiness about its exterior design, the convertible is all about big and boat-like proportions, especially with the fabric roof opened.

Like nearly all drop-tops, the E400 looks best with the cabin open to the elements, and the side profile especially paints a picture of well-heeled wafting, with only the AMG alloys and body styling hinting at the performance on offer under the bonnet.

Inside, expect perfectly executed modern luxury, with soft leather seats, touchpoints that melt under the fingers and a sprinkling of woodgrain trim. All of which feel like old-world luxury, nicely juxtaposed by the huge twin-screen display that dominates the dash.

At just over 4.6m long, just under 1.9m wide, and just under 1.7m tall, the Elexio fits snuggly between the smaller Kona Electric and Bigger Ioniq 5 among Hyundai's electric family. In family vehicle terms, it's marginally shorter than the brand's petrol and hybrid-powered Tucson.

But owing to the magic of EVs and their flat floors, the Elexio feels massively spacious in the backseat. I'm 175cm, and had no trouble getting comfortable behind my own driving position, with plenty of leg and headroom. 

Tech is pretty strong, too. There are twin wireless charging pads up front, a total five USB-C ports, and a household style plug (which car companies call Vehicle to Load) located in the boot.

There's storage in the doors and centre console, including a storage drawer, and cupholders up front and in the pulldown divider that deploys over the middle seat in the back.

But the weirdest thing is the driver screen, which is the only straight-ahead access the driver has to things like speed or navigation directions. It's a very cool 3D-effect display, but it utterly disappears if you're wearing polarised sunglasses. 

That's actually pretty common with all head-up displays, but they usually are projected above a traditional driver's binnacle. In the Elexio, it's the disappearing screen or nothing.

To be fair, the central screen also displays speed and crucial information, but I hate having to turn my head to look at it. It's my least-favourite thing about Teslas, and if you're wearing polarised sunglasses, the Elexio ends up feeling a lot like that.

I do love that there is an actual control to select Drive, Reverse or Park, and I adore the addition of a physical stop/start button, too.

There's also an auto-opening boot which reveals a 506-litre space with the rear seats in place, and 1540 litres with the 60/40 split rear seats folded flat. Keep in mind there's no spare tyre taking up space, though. You'll be leaning on the repair kit should you get a flat.

It's a two-door, four-seat convertible, so practicality isn't at the very top of its list of strengths.

That said, life is peachy for upfront riders, both of whom will travel in spacious luxury. There are two cupholders hidden beneath a woodgrain cover underneath the climate controls - also home to a power outlet - as well as a clever double-hinged central storage bin that can be opened by either the passenger or driver, and which opens to reveal two USB points.

There's room in the doors for bottles, too, and the entertainment system can be controlled via a touchpad controller mounted above the traditional click wheel - although, to be honest, using it is harder and more time consuming than simply pretending it doesn't exist.

Climbing into the back (and we mean climb - there are no rear doors) is made easier by the fact you can fold and slide the front seats automatically by pulling a lever mounted near the headrest. Once there, though, you'll find space is a little tighter, and you feel weirdly cocooned, owing to the huge raised tunnel that runs through the middle of the cabin, and the low roof line.

There are two cupholders that live in the space where the middle seat would normally go, and there's a little bottle-holder cubby to the left of both backseat riders. There are air vents back there, too, but no temperature controls.

The front doors are huge and really very heavy, requiring considerable heft to open them.

The boot space is predictably a little limited, with 385 litres on offer. There's also a little flip-down separator, which shows you how much room the roof will need to come down, reducing boot space to 310 litres. Speaking of which, the soft-top can be lowered in just 20 seconds, and at speeds up to 50km/h.

One practicality quirk, though. The front (and only) doors are huge and really very heavy, requiring considerable heft to open them, especially if you're parked on a slight angle. Honestly, I was reduced to kind of pushing them open with my foot at times.

At $157,400, the Cabriolet is the most expensive model in the E400 family, and is roughly $20k more than the sedan and $10k more than the coupe variants.

That money buys you a comprehensively kitted-out ride - as it really should - with the E400 Cabriolet arriving with 20-inch AMG alloys, LED headlights (made up of 84 LEDs) with high-beam assist, proximity unlocking with push-button start, air suspension and Merc's AIRCAP - a lip above the windscreen that's designed to push air up and over the cabin when the roof is down.

Inside, you'll find leather seats, dual-zone climate control and the clever 'AirScarf' system, which pumps hot air onto your neck when the roof is down (and it's cold out). You'll also nab heated front seats, power windows front and back and an automatic belt feeder, which saves you reaching over your shoulder to get to your seatbelt. So exhausting.

On the tech front, expect a killer 590W, 13-speaker Burmester stereo, controlled by the seriously impressive widescreen cockpit; two 12.3-inch screens that spill from about the centre of the dash all the way to the driver's binnacle, and control everything from navigation to Apple CarPlay and Android Auto.

There's a whole bunch of safety stuff, including semi-autonomous technology, but we'll drill down on that under the Safety sub-heading.

There’s just the one powertrain on offer here — with a front-mounted electric motor, so front-wheel drive, that produces 160kW and 310Nm. That makes the Elexio feel spritely enough, but it’s no rocket ship.

It's a fabulous engine, this twin-turbocharged V6 - even if it doesn't feel quite so lively in Cabriolet form as it does in the hardtop equivalents.

The 3.0-litre unit produces 245kW/480Nm, sending it to all four wheels via a nine-speed automatic transmission, linked to the standard 4Matic all-wheel drive system.

Delivering the driving power is an 88.1kWh LFP battery, which Hyundai says equates to a WLTP driving range of 546kms.

The Elexio’s E-GMP platform is a 400-volt architecture, which does limit DC fast charging to around 120kW – the Ioniq 5, for example, will charge in excess of 230kW. 

Hyundai says you’ll go from 10 to 80 per cent in around 38 minutes plugged into our fastest chargers. AC home charging is capped at 10kW.

Mercedes claims 7.4L/100km on the combined cycle (but you can expect to be pushing nine litres in real-world conditions), with emissions pegged at 170g per kilometre of CO2.

The 66-litre tank will only accepts 95RON fuel.

Ok, let's skip to the good part quickly. I really like the way the Elexio drives. Honestly, Hyundai (and, to be fair, Kia, Porsche, Polestar, Tesla, some German brands and Leapmotor with the new B10, amongst others I'm surely forgetting) are restoring my faith in how an EV can feel from behind the wheel.

It turns out they don't have to feel soft and saggy and come with a light sense of seasickness as standard. They can be engaging, connect you to the car and to the road below, and attack corners with some athleticism, too. 

And so it is with the Elexio, which – to be fair – has a spec sheet that reads a bit like a bedtime story, such is the lack of excitement in the numbers. A two-tonne-plus, front-wheel-drive family SUV that produces less power than a Toyota Camry doesn't exactly quicken the pulse.

And it's true that the flat-footed acceleration on offer won't knock your cap off (though it feels perfectly perky enough to get you up and moving). But the numbers don't tell the whole story here.

A sports car this ain't, but its driving nature perfectly suits the ethos of the car. The ride can feel a little harsh at times, but irons out most road imperfections to the point that you notice them, but they're not uncomfortable.

The steering is direct without being overly aggressive –though I prefer the sportiest setting with the heavier feel – and the body roll is minimal, too.

In fact, you can push the Elexio harder than you might think along twister roads, with plenty of confidence-inspiring stability and without too much complaint from the tyres. Because there's not a huge amount of power underfoot, and this is going to sound absolutely crazy, but it gave me (much-heavier) Mazda MX-5 vibes, in the sense that you can really feel like you're driving it without feeling like you're going to get yourself in too much trouble.

Sure, the E400 Cabriolet can drive itself, but we’re equally pleased to note that it’s still a lot more fun handling the steering duties yourself.

And that is mostly due to that fabulous engine; quiet and effortless at city speeds, rorty and enthusiastic at pace, and genuinely angry with the drive setting switched to their most hardcore Sport+ mode.

We’ve already spent time in the sedan version, and while this Cabriolet is heavier (1935kg vs 1820kg) and slightly slower to 100km/h (5.5sec vs 5.2sec) it doesn’t immediately feel it behind the wheel, with a similar and satisfying lurch into the future when you plant your foot.

But hard charging is not what this car is about, and the E 400 is at its peachy best when rolling about the city or the ‘burbs with the top down, and the warm summer air washing through the cabin.

In its normal drive settings, the steering is light but engaged, and the ride on offer from the standard air suspension is outstanding, cosseting the cabin from all but the very worst road imperfections, while the torque from the V6 serves up effortless, unobtrusive acceleration.

With the roof up, Merc’s designers have done a stellar job of hiding the fact this thing is a convertible at all. It’s a solid-feeling cabin with the fabric roof fastened, and the cabin is quiet and free from wind noise.

There are few cars on the road as overloaded with safety technology as the E400 Cabriolet.

The standard stuff is all there, of course. There's a 360-degree parking camera, as well as nine airbags (dual front, dual pelvic/thorax for front-seat passengers, dual sidebags for rear passengers, dual head bags in the doors and a knee airbag for the driver), rollover protection and tyre-pressure monitoring, as well as braking and traction aids.

But the E400 adds some really clever technology, including Merc's Driving Assistance Package Plus, which adds active lane keeping, blind-spot assist, cross-traffic alert and evasive steering assist.

It's this suite of systems that allows the E400 to navigate freeways autonomously, including changing lanes on demand. At the moment, the system will warn you to keep your hands on the wheel every so often, but you can sense a time when that will no longer be required. And that time is soon.

The E-Class range scored the maximum five-star ANCAP safety rating when crash tested in 2016.

The Elexio is covered by Hyundai’s new seven-year, unlimited-kilometre warranty, provided you service with Hyundai. If you don’t, then it's five years of coverage.

Service intervals are a pretty luxurious 24 months or 30,000kms, and Hyundai’s service plans will see you paying $779 at the two-year mark, and another $1118 at the four-year mark, which puts your annual cost at around $475.

I'd say that's about average, with the happily extended service intervals counterbalanced by slightly higher servicing costs than you might find with some competitors.

Expect the usual three-year, unlimited-kilometre warranty, with service intervals pegged at 12 months or 25,000km. Mercedes' capped-price servicing scheme limits maintenance costs to $2280 for the first three years of ownership.