Mercedes-Benz S-Class vs Mini Aceman

What's the difference?

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.

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

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

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

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

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

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.

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

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

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

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

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

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

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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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

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.

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

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

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

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

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

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

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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

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

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

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