Mercedes-Benz EQS vs Volvo Ex90

What's the difference?

It’s unquestionably fast, certainly luxurious, but I’ll be honest, I don’t think the EQS is going to be for everyone. The styling will be challenging for some and the glittery interior tech offering might be a bit much, even for the more rusted-on Benz traditionalists.

Then again, shouldn't an electrified flagship be all about challenging the status quo, trying new ideas, and bringing new fans to the brand? If anything, I think that might be what the EQS does best.

The new Volvo EX90 Ultra Twin Motor Performance strikes a great balance between sophistication and practicality. It looks sharp, drives beautifully, and delivers a solid range with fast charging to match. Adding to that is a comfortable, family-friendly cabin with space for seven. It’s hard not to be impressed.

There are a couple of technology beats it misses but it's still an easy SUV to live with.

We’re going to start with design, because from the outset it is a topic which simply must be addressed.

Mercedes has flipped the script when it comes to its next-generation design language worn by its dedicated range of ‘EQ’ electric cars. It follows a trend we’re seeing across the industry of larger, more amorphous vehicles which need the space to accommodate batteries, but also the aerodynamic traits to extend driving range and keep energy efficiency as high as possible.

The issue when it comes to the EQS is it essentially puts the iconic S-Class shape, refined over generations, in the bin, and replaces it with something a bit more challenging to the eye.

Gone are the angles, louvres, and deeply three-dimensional grilles, replaced by sleek rounded edges, wheels which reach to the very edges of the chassis, a blank, almost plasticky grille and a more liftback-like profile than one of a traditional sedan.

You’d better get used to it, too, because the smaller EQE is near identical in shape, a trend which will no doubt continue across other EQ models.

It’s the finer details that add character, particularly for the 53 with its AMG-leanings. The lack of shapeliness down the side makes the massive 22-inch wheels stand out more, and the rear three-quarter might be this car’s best angle, with a colour-matching spoiler flicking up off the small bootlid, and delicate badgework illustrating this car’s place in the world. Our car, which appeared in a silver shade timeless on Mercedes-Benz models, made the black AMG highlights on the front and rear bumpers shine, and some of the usual Benz shape is claimed back through the EQS’s LED light profile, both at the front and rear.

There’s no doubt it’s a step into the future, and an overall shape which is a marriage of both form and function. While looks are always subjective, I still think it may be a hard sell, even to some of the most committed fans of Mercedes design.

The EX90 has swathes of smooth body panelling and a closed-off grille, as we've come to expect from a modern EV. The rear roofline tapers gently, giving it a sleek profile, while the black body moulding around the base and frameless mirrors add some visual interest.

It’s a clear departure from the boxier XC90 and you won’t mix them up but it still features those signature 'Hammer of Thor' LED headlights, which I really like.

The Ultra rides on 22-inch alloy wheels which help fill the arches nicely without making the car look oversized or flashy. The soft-close doors are a luxe touch and the overall fit and finish is up there with the best in the segment.

It shares its platform and technology with the Polestar 3, so if you're familiar with that model, the dashboard and centre console layout will feel very familiar.

I’m a fan of the clean, minimalist look and it works well with the panoramic sunroof, which brings in loads of light. A future update will let you switch the roof from clear to opaque, which should be a nice touch come summer.

The ambient lighting is cleverly integrated with the birch wood trim, and there are subtle ambient lights throughout the cabin that give it a business-class vibe.

And since it’s fully electric, there’s no transmission tunnel, so the middle row gets a completely flat floor. That also means extra space, with a handy storage cubby added under the centre console.

The EQS is enormous, so it’s a good thing there’s huge amounts of interior space, even for what is ostensibly an S-Class, and with its bespoke electrified underpinnings, it also scores the kinds of innovations we like to see from electric cars.

These include things like a huge cutaway under the floating dash for extra storage, which the brand has seen fit to add elastic tie-downs so your objects don’t go flying in corners!

Storage up front is otherwise excellent with decent bins in the doors with height-limited sections for bottles, a flip open tray which houses the wireless charger and a set of fold-away bottle holders, and split-opening armrest console box which is deep and features yet another set of USB-C outlets.

Adjustability is great for front passengers, but ergonomically I found something a little weird about the digital dash. For me to rest my arms and hold the wheel, I had to set it so low the top of the wheel obscured the instruments, and if I set it high enough to see the full cluster, to comfortably hold the wheel my elbows would need to float above the armrests. Weird.

It doesn’t end there for the entirely touch-based controls either. While the (admittedly very cool-looking) wheel is packed full of buttons and touch sliders, they require near-surgical precision to operate with your thumbs, distracting while you’re driving, and the enormous centre screen’s main drawback is the fact CarPlay, for example, was not designed for the buttons and functions on the far left to be a metre away from where the driver’s hand is. Again, it’s distracting to have to lean out of your seat to hit the ‘back’ button on most context menus.

I would like to tell you at this point the Mercedes-Benz menus are mercifully simple to aid you with such an overwhelming system, but this isn’t true either. For some reason, there’s a ‘vehicle settings’ menu accessed easily through the main panel, or another menu with a separate set of key functions activated by a car-shaped shortcut button on the floating console. Why? Why aren’t these menus the same? I discovered this in my attempts to use the ‘raise vehicle’ function when faced with a steep driveway. You’re going to need to use this function often in a car measuring over 5.2 metres long, so hiding it in a confusing menu is an interesting choice.

The back seat is where the EQS should shine, and in terms of space it’s stellar. I can barely touch the seat in front of me when set to my own (182cm tall) driving position. It comes with some soft pillows which attach to the headrests, the sunroof extends back there nicely while not impeding on the great headroom, and the lavish trims all continue into the doors and seat bases, too.

The drop-down armrest has a trick pop-out bottle holder in it, and there are a further two on the doors. Amenity-wise rear passengers score four adjustable air vents with two climate zones adjusted via their own touch-panel, but I was interested to see there was a lack of screens back there.

This is particularly notable as most S-Classes are bought to be driven in rather than to drive, and the screens are so much in the front, I was expecting a matching offering for rear travellers. Not so.

You also can’t adjust the rear seats at all, and unlike some EVs coming out in this space, there’s no recliner mode for the full business-class experience.

The boot is much larger than in the smaller EQE, with the EQS making use of its extended dimensions nicely. The floor is fully flat, and has a secret compartment underneath for the storage of both your included Type 2 to Type 2 public AC charging cable, and Type 2 to wall-socket converter for garage charging.

With a total space of 580 litres, the EQS comfortably consumed our entire CarsGuide luggage set with space to spare.

The EX90 nails the balance between luxury and everyday usability. Up front, there’s loads of head, leg and elbow room, and it’s easy to get in and out thanks to the 216mm ground clearance and wide door apertures.

That said, the flush door handles can be a bit temperamental as they don’t always pop out when you approach and the key card only works from the driver’s side, which can be annoying.

Once you’re in, the front seats are superb. They’re seriously comfortable, with heating, ventilation, massage and extendable thigh supports that make long trips a breeze. It’s easy to find a great driving position and just settle in.

Storage up front is clever and generous. There’s a large glove box, a deep centre console with a hidden cubby, a shelf under the floating centre stack, plus cupholders and big door bins. It's well thought out and practical.

The 14.5-inch multimedia screen looks fantastic and is responsive. Now, I’m a button girl, and usually having to rely on a screen for everything would bug me but this set-up works.

You can pin your favourite features like climate and media controls to the bottom of the display for easy access, and the voice assistant is usually really capable, so you can stay hands-free when needed.

Built-in Google Assistant, Google Maps, YouTube, Spotify, plus wireless Apple CarPlay and Android Auto make tech integration smooth. Navigation directions show up clearly in both the 9.0-inch digital instrument cluster and the colour head-up display, which is a nice touch.

I experienced a couple of tech gremlins toward the end of my week with the car. The Google Assistant stopped picking up my voice commands and calls wouldn’t route through the sound system once connected.

Thankfully, both issues seemed to resolve themselves without intervention, but it's worth noting in case it’s a software quirk that pops up from time to time.

The second-row seats are ergonomic but a little firm - still comfy enough for long trips, especially with heating for the outboard seats.

Access is easy, and my eight-year old had no trouble climbing in or out. The booster seat integration has moved to the middle seat only (instead of both outboards), which might limit flexibility for some families, but for us it works fine.

There are ISOFIX mounts on the outboard seats and three top-tether points across the second row, and yes, you can fit three child seats side by side. Amenities in the second row are excellent with two USB-C ports, air vents, dual-zone climate, map pockets, cupholders and decent storage bins.

The third row is, as expected, best for kids, as toe room is limited and the access is child-sized. Still, it’s well-appointed with two cupholders, USB-C ports, and air vents built into the C-pillars. Even better, it gets two top-tether anchor points, which is a huge bonus for big families.

Boot space is solid because even with all seats up, you get 324L, including a useful underfloor compartment. Fold the third row and it jumps to 697L.

You can also manually raise or lower the boot height thanks to the active air suspension, and the third row folds electrically. There’s also a 12-volt socket and a powered tailgate you can operate via the Volvo app or the multimedia screen.

Up front, there’s a 34L frunk which is ideal for storing charging cables or a tyre repair kit, keeping everything neat and separate.

There are two grades available for the new Volvo EX90, and for this review, we're testing the flagship Ultra Twin Motor Performance.

While it shares the same motor configuration as the lower Plus variant, the Ultra gets a performance tweak that improves its 0–100km/h sprint time. Naturally, it also comes with a suite of luxurious extras befitting its flagship status.

Starting at $134,990, before on-road costs, the Ultra sits comfortably in the middle of its electric upper-large SUV rivals.

It’s more expensive than the Kia EV9 GT-Line (from $121,000) but undercuts the luxury-laden Mercedes-Benz EQS 450 4Matic (from $222,400). It also only costs $6600 more than the top-spec PHEV XC90, making it a compelling step up if you require electric performance and efficiency.

With a claimed WLTP driving range of 570km, the EX90 Ultra holds its own in the segment, offering solid long-distance capability.

The Ultra is well-equipped as you’d expect with electric front seats that feature heat, ventilation and massage functions. There is a heated steering wheel, fixed panoramic sunroof and a 25-speaker Bowers & Wilkins sound system.

Volvo has confirmed the panoramic sunroof will have an adjustment setting between clear and opaque in a future update, as it currently doesn’t have a blind.

Some great practical and family-friendly features include heated rear outboard seats, powered third-row seats, a powered tailgate, a 34L frunk for charging cables and an integrated kid’s booster seat in the middle row for those transitional stages.

The well-rounded suite of technology is based on the EX90's new Polestar 3 cousin and includes four USB-C ports plus a digital key via the Volvo app. The app also allows you to check on the status of the vehicle, open and close the boot lid, remotely unlock/lock the vehicle and pre-set the internal climate.

There is a large 14.5-inch touchscreen multimedia display that features wireless Apple CarPlay and Android Auto, satellite navigation (with live traffic updates and directions that are pulled into the colour head-up display) and a 9.0-inch digital instrument cluster. The system also has a suite of built-in apps like Google Assistant, Google Maps, YouTube, Spotify etc. 

In the electric era, do performance figures matter? AMG would argue a resounding ‘yes’ although I would argue the art for premium automakers like Mercedes is now in producing suspension setups that can handle the weight of batteries.

Regardless, the EQS has a dual-motor setup, capable of providing a whopping 484kW/950Nm in its standard form, or an even more incredible 560kW/1020Nm with the Dynamic Plus package. Look, you’re spending over $328,000 already, what’s an extra $8k or so to put pretty much any other four-wheeled object in your rear-vision mirror? With the Dynamic Package, a sprint time of 3.4 seconds is… brutal.

The four-wheel drive system is necessary to keep all that power under control. While some enthusiasts may be turned-off by the four-wheel steer function, I’d read on to the driving section to see why it’s not only worth having (try turning a 5.2-meter long sedan around without it) but also not as intrusive as you think it’s going to be in the corners.

The Ultra is all-wheel drive with twin electric motors, one on each axle. Combined, they deliver a hefty 380kW of power and 910Nm of torque. That translates to a 0–100km/h sprint in just 4.9 seconds, which is seriously impressive for a big SUV.

Do we need it to be this fast? Absolutely not. But do I appreciate the gumption? You bet I do.

Even at the official energy consumption of 23kWh/100km, the EQS’ drivetrain is essentially the electric equivalent of wielding a massive V8 under the hood. It’s not by any measure impressive, but then, with 107.8kWh of lithium batteries under the floor, it’s perhaps impressive it’s not worse than an Audi e-tron, particularly since the EQS weighs in at nearly three tonnes.

The battery is one of the largest on the market in Australia, offering the EQS a driving range of 585km on the WLTP cycle. Very impressive.

On the charging front, the EQS can charge at up to 200kW on DC thanks to an advanced cooling system, and on AC charges at 11kW in its stock form or 22kW with an optional $2490 upgrade. Again, at $328k, why wouldn’t you want the best charging system you can get for so little extra?

You can also package in a Mercedes-Benz branded wallbox for your home garage, valued at $1450 before installation costs.

To give you an idea of charging times: Expect a little over two hours (from 10 per cent) on a common 50kW DC public charger, nearly ten hours from an 11kW AC public charger, and a number not even worth mentioning from a home wall socket.

The official WLTP energy consumption figure for the EX90 Ultra is 16.9kWh/100km, and after a good mix of open-road and urban driving, I averaged around 20kWh/100km which isn't bad at all for a vehicle of this size.

The strong regenerative braking helps here, and if you time your deceleration right, you can enjoy a proper one-pedal driving experience, which makes city driving feel effortless.

The EX90 uses a Type 2 CCS charging port and packs a massive 111kWh lithium-ion battery, good for a driving range of up to 570km (WLTP).

Charging speeds are impressive as it supports up to 11kW on AC and a hefty 250kW on DC fast chargers. That means you can go from 10–80 per cent in as little as 35 minutes on a 250kW charger, or in around 10 hours on an 11kW home set-up.

The EQS is quite surreal to drive, and you’ll notice a whole bunch of odd things first.

Immediately the driving position will be surprising. It’s nothing like what a traditional sedan feels like. This is because you sit high in the EQS. This helps facilitate extra under-floor space for the batteries, but the way Benz puts it, this driving position is deliberately SUV-like to grant buyers the more desirable view of the road which they now (apparently) seek.

It has some oddities, as mentioned earlier, with the fixed digital instrument cluster, and the way the wheel can block it depending on your height, but on the whole I found visibility in the EQS to be pretty good, despite limitations out the distant rear window.

Sound-wise AMG has created a bespoke soundscape for its electric models, two soundscapes, in fact. One sounds like a facsimile of a distant, digitised, V8 (weird) while the other is a bit more sci-fi. I can’t decide which one I really like, but props to the brand for thinking of individual sounds for things like accelerating, regenerative braking, as well as turning the car off and on. There’s even a humming tone for when the car is idling. 

AMG says “it doesn’t work without sound” and I suppose it does add some sort of feedback to the experience which would otherwise be missing. I’d rather have it than not I suppose is the take-away here.

The acceleration is completely over-the-top in Sport or Sport+, allowing you to move such a large vehicle forward in an almost comically quick fashion. It has the sudden urge of a Tesla, but with an element of grace that follows courtesy of the adaptive suspension which, not only settles the ride, but keeps the car comfortable.

It is the suspension though which sets cars like the EQS (and even rivals from BMW) apart from the likes of Tesla. The ride in the EQS is superb, befitting the heir apparent to the S-Class throne. It’s hard to find a ride so void of issues, particularly in the everyday Comfort drive-mode. It’s not just the fact I can’t complain about brutality from this car’s oversized 22-inch wheels, but also there has clearly been delicate work conducted to control the rebound, body-roll, and jiggle which can occur as a result of moving around a near-three-tonne chunk of aluminium, steel, lithium and leather at enthusiastic speeds.

This settled ride combines gloriously with the four-wheel steer system to make the EQS a keen corner carver, despite gravity constantly working against it.

I was surprised to find the four-wheel steer system to be pretty much identical in feel to the system also employed in the EQE and new C43, in that it is unobtrusive to the overall feel of the car, only helping to add a little extra turn-in to the corners when need be.

In a vehicle as long as the EQS it’s a bit more noticeable, and requires a moment of brain-adjustment, as the car (bizarrely) goes exactly where you point it, requiring no over- or under-adjustments, the grip from the enormously capable four-wheel drive system refusing to let any shift under sensible driving conditions. 

So, it’s comfortable enough to be an S-Class, fast enough to be an AMG, but I must say there is something a bit clinical about how it attacks the road. Missing some of theAMG drama we’ve become so used to from the brand’s combustion range, perhaps?

Smooth and effortlessly powerful - that’s the best way to sum up the EX90 on the road. Despite its size, you don’t feel the bulk from behind the wheel. It’s nimble when it needs to be and wickedly quick off the line. Even under hard acceleration, I always feel in control, which is a huge plus for something this punchy.

You can customise the steering feel, and I preferred it on the firmer setting as it gave the best feedback without feeling heavy. The active air suspension does a great job of absorbing rough surfaces without softening the handling, so there’s no floatiness, just a composed, comfortable ride.

Inside the cabin, it’s beautifully quiet. That signature EV silence makes the space feel refined, with just the occasional tyre rumble at higher speeds, depending on the road surface but it’s never intrusive.

Visibility is mostly great from the front and sides, but the rear window feels miles away in the mirror, and the B-pillars are a little thick, so there’s a minor blind spot to be aware of.

Parking is easier than you’d expect for something of its size. The 360-degree camera is super clear, and there are plenty of parking sensors. The 12m turning circle is pretty standard, but it still felt totally manageable in tight shopping centre car parks.

The EX90 hasn’t been ANCAP-tested yet, so it’s currently unrated but being a Volvo, you can bet it’s packed with safety smarts.

It features a comprehensive suite of advanced safety tech, including side exit assist, emergency call functionality and a child detection system using radar sensors to monitor for movement in the cabin after the car is locked, designed to prevent children being accidentally left inside.

The second- and third-row seats all feature top-tether points, with ISOFIX anchors on the two outer second-row positions.

There are seven airbags, including a front-centre airbag and curtain airbags that cover all three rows, which is a win for families.

On top of that, it’s equipped with Volvo’s 'Pilot Assist' suite, which includes adaptive cruise control with lane centring, lane departure alert, lane keeping aid, blind-spot monitoring with steering assist, rear cross-traffic alert with automatic braking, 360-degree camera system, front/rear parking sensors and autonomous emergency braking with forward collision warning.

Volvo is also working toward occupant sensing and driver monitoring systems that go beyond the usual alerts. The EX90 includes an interior radar system sensitive enough to detect the micro-movements of breathing, aimed at preventing hot car deaths.

It’s being pitched by Volvo as one of the more safety-forward SUVs on the market, even before it earns its official crash score.

Like many electric cars, the warranty on the EQS is twofold. Firstly, there is the whole vehicle warranty, which from Mercedes-Benz is five years and unlimited kilometres, but the high-voltage battery is covered by a separate, and quite healthy, ten-year, 250,000km promise.

Benz throws in a three-year subscription to ChargeFox, offering owners free charging for the duration (to give you an idea, it cost me about $30 to charge the EQS to nearly full from 20 or so per cent).

Service intervals are surprisingly standard, at 12 months and 15,000km, and the EQS’ pre-paid service program is $1750 for three years, $2750 for four years, or $3250 for five-years, working out to about $650 a year. Far from the cheapest we’ve seen for an EV, but chump change for owners considering the up-front cost of this vehicle.

The EX90 is covered by a five-year/unlimited km warranty, which is on par with most rivals, though Kia still has the edge with its longer coverage. Servicing intervals are every 12 months or 15,000km, whichever comes first.

As for costs? For the first five years, servicing is included in the purchase price, so while it’s technically not ‘free,’ it does mean no extra out-of-pocket expenses for scheduled maintenance during that time and that’s pretty solid value in this segment.