Mercedes-Benz CLS-Class vs Mini Aceman

What's the difference?

Comfortable when it needs to be and sporty when you want it to be, the CLS 53 is a bit like Mercedes’ Doctor Jekyll and Mr Hyde – or maybe Bruce Banner and the Hulk is a better frame of reference for some.

While it doesn’t excel in any one particular area, its breadth of useability is commendable, but ultimately it might be its all-too-familiar aesthetics that is the biggest letdown.

From the inside, it looks and feels like any other large Mercedes model (not necessarily a criticism), while the exterior – in my opinion – doesn’t go far enough to differentiate it from the CLA.

After all, if you wanted a stylish and sporty sedan, shouldn’t feel special too?

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.

Mercedes’ homogenised design is a bit of a double-edged sword, and while the CLS does wear its styling confidently, it probably looks a little too much like the cheaper and much smaller CLA for our tastes.

Both are swoopy four-door coupes from Mercedes-Benz, so of course there will be some similarities, but keen-eyed car spotters will notice some differences.

While the proportions are similar, the longer wheelbase and bonnet line gives the CLS a more mature look, and the extra details found in the head- and tail-lights, and front bumper stand it apart.

The changes to the 2022 version also brings in AMG’s 'Panamericana' front grille, which adds a bit of welcome aggression to the front end.

From the side, the steeply raked roof flows seamlessly into the rear, while the 20-inch wheels fill out the arches well.

All four doors are also frameless, which is always cool to see.

From the rear, quad-exhaust tips hint at the CLS’s sporty intentions, while a prominent rear diffuser and subtle boot lid spoiler also feature.

Inside, the biggest change to the CLS is now the inclusion of the MBUX multimedia system, which keeps it in line with the E-Class, C-Class and other Mercedes models.

AMG sports seats are also fitted, wrapped in Nappa leather and 'Dinamica' fabric upholstery for all pews.

Our test car also came fitted with red contrast stitching and seat belts, adding a racy streak to the CLS cabin.

Have to point out the new steering wheel that comes with the 2022 CLS, though, which mirrors the tiller offered in the new E-Class, and is a step back in terms of functionality.

It looks premium enough thanks to its chunky leather-wrapped rim and gloss black dual-spoke design, but using the buttons, especially when on the move, is difficult and unergonomic.

This design is definitely function over form, and might need a few more revisions to get it right.

Overall, we’d say the CLS is a good-looking car, but does play it a bit too safe with its styling?

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.

Measuring 4994mm long, 1896mm wide, 1425mm tall and with a 2939mm wheelbase, the CLS slots neatly between the E-Class and S-Class in size and positioning.

Up front, occupants are afforded ample room for head, legs and shoulders, while the electronically adjustable seats make it easy to find a comfortable position.

The steering wheel also features a telescoping function – an always appreciated feature – and the expansive glasshouse makes things feel open and airy.

Storage options include a deep door pocket, a cubby found under the armrest, two cupholders and a smartphone tray with wireless charging capabilities.

It’s a different story in the second row, though, as the sloping roofline does noticeably eat away at headroom.

Don’t get me wrong, a six-foot-tall (183cm) adult can still slide in there fine, but the roof is dangerously close to the touching the top of the head.

Leg- and shoulder-room is pretty good in the outboard seats though, while the middle position is compromised by the intrusive transmission tunnel.

In the second row, passengers have access to a bottle holder in the door, a fold-down armrest with cupholders, backseat map pockets and two air vents.

Opening the boot reveals a cavity offering 490 litres of volume, with an aperture wide enough to fit golf clubs or luggage for a weekend getaway for four adults.

The rear seats also fold in a 40/20/40 split fashion, but Mercedes-Benz is yet to detail how much volume is on offer with the rear seats down. And as a traditional sedan, the CLS is less practical than the liftback Audi S7.

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.

Powering the Mercedes-AMG CLS 53 is a 3.0-litre turbocharged inline six-cylinder engine, punching out 320kW/520Nm to all four wheels via a nine-speed automatic transmission and Merc's '4Matic+' AWD system.

A 48-volt mild-hybrid system, known as 'EQ Boost', is also fitted that serves up to 16kW/250Nm from take-off.

The result is a 0-100km/h acceleration time of 4.5 seconds, keeping it on pace with the likes of the 331kW/600Nm Audi S7 (4.6s) and 390kW/750Nm 250kW/500Nm BMW 840i Gran Coupe (5.2s).

While not as brutish as AMG’s eight-cylinder engine, the straight six strikes a great balance between pace and poise that perfectly suits a model like the CLS 53.

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.

Official fuel consumption numbers for the CLS 53 are pegged at 9.2 litres per 100km, while we managed an average of 12.0L/100km in our launch drive.

All of our driving was relegated to country back roads and high-trafficked urban areas however, with no consistent freeway driving.

We’ll reserve judgement on how accurate the fuel economy figures are until after we’ve had the car for longer, but the EQ Boost system is designed to help keep consumption down by being able to coast the engine in particular situations.

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.

There are certain expectations on a vehicle when it wears a Mercedes badge, namely it should be comfortable to drive while also dripping with the latest tech. And here the large four-door coupe delivers in spades.

Driving the car is smooth, easy and comfortable when in its default drive setting, you can really sink into the CLS and just eat up the miles in comfort.

There are small niggles, like the 20-inch wheels and low-profile tyres (245/35 front and 275/30 rear) throw up a bit too much road noise into the cabin, but for the most part, around town, the CLS is serene, supple and supremely soothing.

However, switch it over to Sport or Sport+ and the steering gets a bit heavier, the throttle response a bit sharper, and the suspension a bit stiffer.

Does it transform the CLS into a sports car? Not quite, but it certainly dials up driving engagement to a level where you can really have some fun.

Though this isn’t a full-fat AMG in the same vein as an E63 S and doesn’t feature the ubiquitous 4.0-litre twin-turbo V8, the CLS 53’s 3.0-litre six-cylinder engine is still plenty potent.

Coming away off the line feels particularly brisk, likely due to the EQ Boost system adding a bit of poke, and even flat-footing it mid-corner delivers a noticeable surge of urgency from the creamy straight six.

However, the best of the CLS 53 experience, in my opinion, is actually the sound, with the exhaust letting off the right sort of pops and crackles in Sport+ mode on overrun.

It’s rude and obnoxious, but also completely surprising coming from the motoring equivalent of a three-piece dress suit – and I love it!

The brakes are also up to task for scrubbing speed, but our relatively brief time with the car was in extremely wet conditions, so the 4Matic+ AWD system was hugely appreciated.

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.

Like all new Mercedes-Benz models sold in 2021, the CLS 53 comes with a five-year/unlimited kilometre warranty with roadside assist over that period.

This outclasses the assurance period offered by BMW, Porsche and Audi (three-year/unlimited kilometre), and matches that available from Jaguar, Genesis and Lexus, who recently upgraded their offering.

Scheduled service intervals are every 12 months or 25,000km, whichever occurs first.

The first three planned services will set buyers back $3150, broken down as $700, $1100 and $1350 apiece.

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.