Gac Aion Ut vs Mercedes-Benz S-Class

What's the difference?

The Aion UT is a cleverly-specified little hatchback and a great entry-point into electric motoring. The software needs a bit of work from a usability perspective, plus the spongy ride and cutesy styling might not be for everyone. 

However, with strong points including driving range, cabin space and value, there’s even a pitch for it in some cases to be an only car compared to most of its price rivals, which are more likely to be thought of as a second car runabout in a two-car garage.

The pick of the range is definitely the entry-level Premium. It comes in at a headline-grabbing price with specs to blow rivals out of the water, while only missing out on a few luxuries.

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

Mercedes-Benz set out to restore the S-Class' place amongst the greatest sedans in the world.

In the heavily-optioned, near-$250K-plus S450 as well as the extended S450L at $300K as tested (the sweet spot of the range for now), we reckon the Germans have succeeded, pushing safety, comfort and technology boundaries, in a package that is true to the heritage of the series.

Tax-fuelled sky-high prices will certainly keep the S-Class niche in Australia, but the car is more than good enough to dominate its tiny corner of the upper-large luxury car sphere.

The best new car in the world? We reckon it's highly likely. Mission accomplished, Mercedes.

GAC tells us the UT hatch was designed in Milan, Italy, but it also isn’t ashamed of the Chinese influence on its overall appearance, like the ultra-short bonnet and Chinese city-car style face.

Along the side it has a modern, aerodynamic profile, and the ultra-short overhangs and long wheelbase maximise the amount of room for batteries under the floor and interior space.

The rear feels a lot like a modern Mini, with its bulbous tailgate and protruding light clusters, spiced up with a sporty spoiler piece jutting out.

It’s not a bad looking thing and it’s available in an array of fun colours.

On the inside it seems to follow the established rule-book of Chinese automakers, with plush trims, big screens with minimal physical buttons as well as a contemporary two-spoke steering wheel.

There’s a trendy floating console which hosts the cupholders and wireless charger on the Luxury grade, and an array of interesting patterns and textures through the doors and dash which you wouldn’t have once seen on a car at this price-point.

However, it is worth noting that while the seats are quite nice, and the steering wheel is a stand-out touchpoint, the trims on the doors and across the dash-top are hard plastics, more so than some of this car’s rivals.

Most Mercedes models have followed the Russian Doll-style cookie-cutter styling theme, and the heavy family look continues with the W223.

Still, the flush door handles do add a touch of Tesla-esque modernity, while the elegant silhouette and clean lines are in keeping with the luxury aspirations. Larger in every dimension compared to the old W222, the S450 is some 71mm-longer in wheelbase (3106mm) than before while the LWB's has stretched out by 51mm (3216mm), benefiting proportions as well as interior packaging.

AMG-branded wheels look sporty but – in the S450 at least – they're perhaps a tad too gangster. A set of flush alloys would give it a more-modern and techier appearance, in our opinion.

Overall, however, the S-Class ‘7' possesses the prerequisite richness of design. It isn't as bold and mould-breaking as models like the W116 were back in their day, but the styling is still a success.

By the way, the latest S-Class is the first Mercedes to employ the MRA2 longitudinal platform, which is rich in lightweight steels (50 per cent aluminium), is correspondingly stronger than before but also 60kg lighter.

With a drag co-efficiency rating as low as 0.22Cd on some overseas grades, the W223 is one of the most aerodynamic production vehicles in history.

In terms of interior space, the Aion UT stands out with its spacious cabin. At 182cm tall, I am easily able to find a comfortable seating position, and visibility out the front sides and rear, while not as good as some small SUVs, isn’t bad.

There’s lots of headroom, and while I mentioned the hard plastic door cards before, there’s enough padding everywhere your elbows are going to touch to make it feel a bit nicer than perhaps it is.

The main drawback of this car for me is the lack of tactile buttons and the frustrating software.

The main screen isn’t particularly well utilised, being taken up by either a background or the navigation map, with an array of typically small shortcuts across the bottom for important features like the climate control or settings menus.

You can pre-set a few information panels which sit above the shortcut bar as in many rival cars and there’s also a shortcut tray which can be hosted on the driver’s side and configured with a variety of shortcuts and settings.

It’s just a bit clumsy to use, and the array of poorly-labelled settings menus for things like active safety equipment feel needlessly complicated.

I’d love to see this car with physical controls for climate and multimedia to make it easier to live with.

Up front the storage is decent. There are big pockets in the doors and a large storage tray between the driver and front passenger thanks to a flat floor. There’s also a slightly weird storage box under the touchscreen which has a net inside, good for more delicate objects you don’t want flying around the cabin.

On the floating console there are two cupholders which are a bit too shallow for my liking, and the wireless charger feels almost pointless because its made of a hard plastic, so your phone just slides right off in the corners. The cabled outlets are hidden beneath which allows for tidy cable management and the centre armrest console box is a healthy size.

The rear seat is comparatively basic, although touches on the key points. Its main advantage is how generous the space is. My frame was able to fit behind my own driving position with heaps of room for my knees, and just enough room for my head despite the dip in the roof for the sunroof shade in the Luxury-grade car we tested. There may be even more headroom in the base car.

The flat floor makes the space useful even for three across in a pinch and there’s a drop-down armrest with (again, shallow) cupholders. There are pockets on the back of both front seats and smallish pockets in each door. The array of soft trims continues, too, and the back of the centre console features a partially adjustable air vent. Luxury spec cars get a single USB rear power outlet.

As with many Chinese cars in this segment, the generous rear seat space comes at a cost to the boot. It measures just 321 litres, which is slightly smaller than its main opponents in this category, although larger than some hatchbacks like the Toyota Corolla, for example.

It has its advantages, though. The floor is two-tiered, and can offer a flat load area with the rear seats folded down, or a deeper boot in its lower position. Underneath there’s a cutaway good for charging equipment and the tyre repair kit (sorry, no spare wheel in here).

Unlike some EVs, the Aion UT doesn’t get a frunk (front boot) for additional storage.

For the beginning of our day with the S-Class, we were chauffeured from home to a mansion in Kew, a blue-chip Melbourne suburb. Our heavily-optioned S450L featured most of the aforementioned extras – including the Business Class Package and Rear Entertainment Package – and the experience was predictably, sumptuously memorable.

Reclining individual rear seats with easy-reach tablets, armrests offering access to all multimedia and available climatised and massaging cushions and backrests... we're no longer in our normal ride, Toto.

Yet, all these trinkets and gizmos are mere add-ons, that can turn a stretched Caprice into a flash hen's night carriage if enough money and glitz is thrown at it.

No, the new S-Class must impress in an altogether less tangible and more philosophical manner, involving all the senses, and not just what we see, hear and touch. It must appeal beyond the superficial. Otherwise, it is not a large Mercedes-Benz luxury sedan in the classic manner.

This is a Herculean task for the Stuttgart designers and engineers. By and large, though, the Three-Pointed Star has succeeded in achieving something special.

In its perception of peerless quality and engineering, the W223 is striving to move forward and look back simultaneously to the glory days of the seminal W126 (1980-1991). This is through meshing traditional virtues like solidity and quality materials while dazzling its passengers with technology that is still friendly enough to want to enhance your experience.

You can sink into the soft lounge seats, watch the world pass by silently outside and never be aware of the road underneath or the engine ahead. Double glazing, exquisite and aromatic fabrics and materials and lush tactile surfaces work their magic inside the car, while an airtight and aero body, solid platform, air suspension and a muted yet muscular powertrain all do their thing underneath. The atmosphere is special and rarefied. That's what an S-Class needs to be and that's what is happening in our $299,000 (as tested) S450L.

The same more-or-less applies up front, as the same trim, leather, wood and technology surrounds the driver and passenger. The spectre of the car that is surely The Car of the Last Decade – Tesla's Model S – is evident in the portrait touchscreen and sparse, almost wallflower dashboard design and layout. No big imposing architectures here.

Yet, while the American upstart actually takes stuff away, the S-Class packs the cabin with subtle features that – like when the planes stopped flying last year and the birdsong subsequently returned – only become obvious once the cabin's design simplicity clears all the white noise for you to be in a better frame of mind to enjoy them.   

Take the haptic interface, for example, as it is perhaps the best we've experienced; the sense of well-being garnered from the cumulative effects of profound seat comfort (the massaging function was never switched off), cocooning micro climate environmental control, orchestral levels of audio entertainment and the theatre of light and vision performed by the two available screens; it is an automotive experience like no other. And the eye-tracking 3D-effect navigation set within the electronic instrumentation. No need for cinematic glasses to get the effect. The driving position itself, by the way, is also first class.

Room to stretch and grow for sure, and in every direction. But room for improvement? You betcha.

Your tester had a headache after a little while staring at that woozy 3D map. The central vents – four at the front, two in the rear – look and feel cheap, leaving us mentally redesigning them; they are frightfully out of place here; the carryover column-stalk auto lever should have been binned in 2005. And, even though the digital instruments have a number of options, none are elegant enough for the S-Class. That's an especially subjective criticism, clearly, but one that – in the context of classic Mercedes luxury sedan contenders – is justified given how timeless the Bruno Sacco era of Daimler design was. Look him up, kids.

Still, after a couple of hours behind the wheel, with our senses reset to calm, it is obvious that the S-Class cabin is a unique and wonderful place – as it should be at a cool quarter-of-a-million dollars.

Job done.

PS At 550 litres (20L more than before), the boot is massive and luxurious enough to sleep in.

Right now, only two S-Class models are available – the S450 from $240,700 plus on-road costs and the 110mm extended-wheelbase S450L (LWB) for another $24,900 on top. Most buyers overwhelmingly opt for the latter.

Despite what the numbers may suggest, both are powered by a 3.0-litre in-line six-cylinder turbo petrol engine, delivering 270kW of power and 500Nm of torque to all four wheels via a nine-speed torque-converter automatic. Greater choices are coming later, including an all-electric version known as the EQS.

Almost every conceivable safety item is standard on the S-Class, including world-first rear-seat airbags located behind the front seats in the LWB model, taking the surround-airbag count to 10.

You'll also find route-based Speed Adaptation (adhering to the posted speed limits), Evasive Steering Assist (a sophisticated form of crash mitigation), adaptive cruise control with active stop/go, Active Lane Change Assist that automatically moves the car into the lane you indicate to), Mercedes' PreSafe crash-preparation tech that primes all the safety systems for impact, electronic stability program that encapsulates all the active driver-assist tech, Active Emergency Stop Assist, Autonomous Emergency Braking front and rear (including for cyclists and pedestrians), Traffic Sign Assist, Parking Package with Active Parking Assist and 360-degree camera and tyre pressure monitors.

On the equipment front there is the latest iteration of Mercedes' MBUX multimedia system with (another) world-first 3D display, complementing an OLED central display, powered closing doors, leather upholstery, air suspension, leather upholstery, velour floor mats, a multi-beam LED headlight system with adaptive high beams, heated and folding exterior mirrors, heat and noise-insulating acoustic glass for front side windows, dark privacy glass for rear windows, sunroof, roller sunblinds for rear windows, metallic paint and 20-inch AMG alloy wheels on runflat tyres.

Want cutting-edge multimedia? There's MBUX II's augmented reality for navigation and fingerprint scanner, as well as a more natural-speech Mercedes-Me Connect voice activation with global search.

Plus, predictive navigation with live traffic, parked vehicle locator, vehicle tracking, emergency call, maintenance management and tele-diagnostics, digital radio, Burmester 3D surround-sound system with 15 speakers and 710W amplifier, remote door locking/unlocking, geofencing, speed-fencing, valet parking, head-up display, Smart Phone integration with Apple CarPlay/Android Auto, wireless charging, ambient lighting, two-zone climate control, poplar wood trim, electric adjustment for front seats, steering column with memory function, climatised front seats, keyless entry/go with flush-fitting door handles offering hands-free access (including for the electric boot),

Besides the ‘forward facing' airbag for the rear-seat occupants, the S450L also scores electrically adjustable rear seats with memory and automatic rear climate control.

Key options – and the list is massive – include an $8700 Rear Entertainment Package, that brings rear-multimedia access, rear tablets with wireless headsets and rear-seat wireless smart phone charging, an AMG Line pack with a body kit, different alloys and larger front brakes ($6500), Business Class Package that includes aircraft-style reclining rear seating and tray tables ($14,500), Nappa leather ($5000), augmented-reality HUD ($2900), 21-inch wheels ($2000) and four-wheel steering ($2700). There's also a $14,500 Energising Package with contoured seating, heated-everything and massaging seats.

Please keep in mind our test cars featured many such extras. Tick all the boxes and you can add nearly $100,000 to the price of your S-Class.

So, is the S450 good value? Given some of the breakthrough safety and luxury features it offers, it is unique. Too bad the Federal Government's Luxury Car Tax makes them so much more expensive than they need to be.

The Aion UT has a front-mounted electric motor producing 150kW/210Nm. That’s plenty punchy for any hatchback at this price, and I like the way the brand hasn’t messed around with a sub-100kW motor in the base variant to push prospects towards the top-spec car.

It’s more powerful than all of its closest rivals and at the time of writing you’ll have to spend four to six thousand dollars more to get into something equivalent from BYD, Chery, Jaecoo, Leapmotor or MG.

It even has a claimed 0-100km/h sprint time as low as 7.3 seconds.

Where are the V8s?

Right now, the only W223 you can buy is powered by an all-new 2999cc 3.0-litre in-line direct-injection six-cylinder turbo petrol engine dubbed the M256, complete with double overhead cams, an electric compressor intercooler and assistance from a 48-volt mild hybrid system and integrated starter-generator, adding 16kW and 250Nm to the 270kW of power at 6100rpm and 500Nm of torque from 1600-4500rpm.

The 9G-Tronic torque-converter automatic transmission and 4Matic all-wheel drive system combination is a first for the S-Class in Australia.

Top speed is limited to 250km/h, while the 0-100km/h sprint-time takes just 5.1 seconds in both models. Impressive for a two-tonne-plus luxury limo.

The Aion UT has a 60kWh lithium-iron phosphate (LFP) battery pack, which grants it a WLTP-certified 430km of driving range.

That’s more than its closest rivals, like the entry-level Ora Standard Range (310km), BYD Dolphin Essential (410km) or BYD Atto 2 (345km).

Claimed efficiency is 16.4kWh/100km and the car I tested returned a consumption of 14.0kWh/100km over a 130km route of mixed conditions, which isn’t bad at all.

Charging speeds are less impressive, but realistically appropriate for the relatively small battery. The peak DC charging capacity of 87kW means a charge time which the brand quotes at 24 minutes, but this is from 30-80 per cent. Expect closer to 40 minutes for a 10-80 per cent charge.

AC charging is decent, at 11kW. This should have you charging from 10-80 per cent between four and five hours.

With the aid of the mild-hybrid system, the S450 returned a combined average of an impressive 8.2 litres per 100km, which translates to 187 grams of carbon dioxide emissions per kilometre. 95 RON premium unleaded (or higher) is recommended. In the urban run it consumes 11.3L/100km (11.5 for S450L), and just 6.4L/100km (6.5 for S450L) in the extra-urban result.

At 76 litres, the fuel tank will allow a combined average range of about 927km between refills.

The drive experience can be where a lot of Chinese cars fall down but I walked away less frustrated by the Aion UT.

That’s not to say it will behave as you might expect a low-slung hatchback to. The suspension, for example, is extremely soft as it maintains its original Chinese-market state-of-tune.

This makes the car waft over imperfections on city roads. And in that sense it offers supreme ride comfort in the scenarios it was designed for. However, at the extremes, like some speed bumps, or particularly deep pot holes there can be a surprisingly violent re-bound sending a thud through the cabin.

The other trade-off for soft suspension is less body control. I was surprised to find that the Aion UT holds it together mostly well on a flat country B-road, but when undulations and big dips introduce themselves, the soft suspension can be too slow to react, making the car lose confidence in higher-speed open road scenarios we’re more used to in Australia.

The steering, like many electric cars in this category, is relatively heavily electrically assisted. This makes it light and easy to adjust at low speeds for easy park and maneuverability in the confines of a city. It loses a little bit of road-feel at higher speeds but the Aion UT’s steering is far from the least connected I’ve experienced recently.

One thing it can’t be criticised for is a lack of power. With 150kW instantaneously available the Aion UT has some serious poke and while the ChaoYang tyre package is tuned more for efficiency than grip, it’s again not one of the worst I’ve driven with.

One thing which helps the whole experience along is this car’s hatchback layout. With the weight of the battery low and squat and the wheels all the way out to the edges of the frame, the Aion UT inherently handles decently compared to an electric crossover or small SUV.

Like all Chinese cars, the UT has a host of occasionally frustrating driver aids, which you can read about in the Safety section below. While I was inclined to turn some of the features off after testing them, the alerts are relatively quiet and non-invasive.

Is the UT any good to drive? It’s not bad for the segment, I was largely pleased with how it handled and the power on offer, and while it still has its annoyances, they’re not big deal-breakers. 

The MG4 rear-drive is a better allrounder, while the GWM Ora isn’t as good. I’d say it’s on par with the BYD Dolphin, but they excel in different areas. The Dolphin's a bit sharper in terms of handling but the Aion UT is more comfortable.

In former times, as the Germans say, a ‘450' on the boot indicated V8 power. In the W116 S-Class era it was one of the world's most evocative badges when ‘SEL' was also attached.

As mentioned earlier, though, it's the M256 3.0-litre turbo-petrol with a 48-volt ‘mild hybrid' electrical system that's doing the driving, to all four wheels. The real V8 W223 will probably surface later this year or in early 2022 with the S580L flagship. Bring it on.

This is not to say that S450 isn't good enough. With that electrified assistance, the blown straight six is smooth and swift off the line and rapid as the auto seamlessly steps up through all nine gears. Because it's so hushed and refined, it doesn't feel 5.1s to 100 clicks quick, but watching the speedo says otherwise – acceleration is assertive and strong right up way past the legal speed limit.

All that's missing is the burbling soundtrack of a classic Benz bent-eight. Oh well. Outstanding economy is a price we're literally willing to pay in lieu.

Even more impressive is the S450's ability to hustle along mountain roads like an overgrown sports sedan.

Now, for Australia, all S-Classes are fitted standard with an adaptive ‘Airmatic' air-suspension set-up, including air springs and self-levelling tech. In Comfort up to 60km/h, the ride height can be raised by 30mm, or lowered by 10mm under the standard 130mm baseline in Sport at any velocity, while in Sport+ it falls another 17mm.

With that in mind, yes, the standard air suspension performs a magnificent job smothering out most surface imperfections around town. Yet its real other party trick is to tighten up the chassis when corners get interesting and Sport mode is selected. Aided by progressively weighted and reassuringly responsive steering, the Mercedes tips into turns with precision and poise, slicing through with virtually no discernible body lean or understeer.

Now, we're not talking a leisurely drive on rural highways here, but Healesville's famous Chum Creek Road, where even a Porsche Cayman would feel like it's had a strenuous dynamic workout. The S-Class can be hurried along with confidence and finesse, displaying outstanding handling and roadholding for a 5.2-metre long limo. And the fact that the ride quality only suffers marginally when the red horns are out is all the more remarkable.

Back in the cut-and-thrust of inner-city peak-hour traffic, the Benz in Comfort mode continued to reveal its driver-orientated yet passenger-focused twin-personalities, zipping in and out of gaps while remaining comfy and composed inside.

Only when parking in tight spots are you truly aware that the W223 is longer than a Mazda CX-9. The optional four-wheel-steering system is claimed to slash the turning circle to A-Class hatchback levels. 10.9 metres is the claim.

The 2021 S-Class never ceases to amaze and delight.

The W223 S-Class has not been crash-tested yet by ANCAP or European affiliate EuroNCAP, so does not have a star rating. However, Mercedes-Benz claims it has striven to create one of the safety vehicles on the planet. Who are we to argue?

Almost every conceivable safety item is standard on the S-Class, including world-first rear-seat airbags located behind the front seats in the LWB model, taking the surround-airbag count to 10.

You'll also find route-based Speed Adaptation (adhering to the posted speed limits), Evasive Steering Assist (a sophisticated form of crash mitigation), adaptive cruise control with active stop/go, Active Lane Change Assist that automatically moves the car into the lane you indicate to), Mercedes' PreSafe crash-preparation tech that primes all the safety systems for impact, electronic stability program that encapsulates all the active driver-assist tech, Active Emergency Stop Assist, Autonomous Emergency Braking front and rear (including for cyclists and pedestrians, at speeds from 7km/h to over 200km/h), Traffic Sign Assist, Parking Package with Active Parking Assist and 360-degree camera and tyre pressure monitors.

The Active Lane Keeping Assist works in a speed range of between 60km/h and 250km/h while Active Steer Assist helps the driver follow the lane at speeds of up to 210km/h.

GAC covers this electric hatch with an eight-year and unlimited kilometre warranty, while the brand’s “magazine battery 2.0” is covered by a separate eight-year and 200,000km warranty. Five years of roadside assistance is included.

The Aion UT needs to be serviced once a year or 15,000km. The service price schedule extends all the way out to 240,000km with yearly visits costing between $199 and $640 but for the life of the warranty the average yearly cost comes in at $352.

There are currently 19 GAC dealers in Australia, confined mainly to Melbourne, Sydney and Brisbane with a single store in Perth and an outlier in Cairns. No representation yet in Tassie, Canberra, the Northern Territory or SA.

Unlike many luxury brands that persist with a sub-par three-year warranty, Mercedes-Benz offers a five-year/unlimited kilometre warranty.

Intervals are every year or 25,000km, with a capped price service plan starting at $800 for the first year, $1200 for the second year and $1400 for the third year, totalling $3400. Alternatively, there is a Service Plan starting at $2700 for the first three years (saving $700 from the normal capped-price service plan), $3600 for four years and $5400 for five years.