What's the difference?
Think of a Mercedes-AMG and the first words that spring to mind are probably not - understated, efficient and restrained. And yet those are probably the best words to describe the all-new C 43.
Of course, before we go any further it’s important to note that the C 43, even in its previous six-cylinder guise, was never meant to be as wild, raucous or powerful as the C63 flagship - that’s simply not its role in the AMG line-up.
But even so, this new model is a dive into fresh territory for the brand and puts a very different spin on the AMG sports sedan as we know it.
This is a four-cylinder model, complete with a Formula One-derived electric turbocharger, so it lacks the sound and fury you expect from something carrying the ‘AMG’ badge - but that doesn’t mean it’s a bad car, as we’ll explain.
When the BMW iX first showed up a few years ago, it was a promising look at what BMW seemed capable of when it comes to electric cars.
While mildly flawed, the iX was fast, comfortable and felt properly premium. Now it’s had a decent update, with the iX xDrive45 M Sport here to replace the former entry-level xDrive 40.
BMW claims among other mechanical and tech updates a power increase of 25 per cent, a 30 per cent greater energy content for the battery, a 38 per cent increase in driving range and a 17 per cent faster charging rate.
But in the time since the iX launched, there have been big strides in the premium electric SUV space, including new arrivals from European opposition like the Polestar 3; even a new American in the form of the Cadillac Lyriq.
The new AMG C 43 may lack the drama and excitement we’ve come to expect from the German performance brand, but that doesn’t mean it’s a bad car. Yes, it could be more extroverted and the ride could be improved, but this is still a sharp-looking sports sedan with loads of punch.
This is a car that speaks to its times, with ever-stricter emissions regulations making it harder and harder for car companies to produce loud, wild and charismatic cars. So Mercedes-AMG has worked within those boundaries and come up with a car that retains at least some of those core elements that has made the brand so desirable over the years.
Note: CarsGuide attended this event as a guest of the manufacturer, with accommodation and meals provided.
If anyone was worried that it would be too late to get a decent bit of value out of an entry-level iX, there's reassuring news.
With more power, range and features added to the model and the cost remaining close to its former sticker price, the iX has held up well despite now existing in a more competitive environment.
Mercedes has created something of a problem for itself with its decision to introduce AMG styling packages for the majority of its range, including the C-Class.
It means the C 43 has to walk a fine line between looking like a unique AMG model, rather than just a C300 with a bodykit and not out-doing the C63.
To that end it has AMG’s now familiar grille with vertical bars, the unique and complex-looking 20-inch alloy rims and a small lip spoiler on the boot. But otherwise it is surprisingly understated for an AMG, lacking the more obvious and muscular stance of previous AMG offerings.
Inside, there’s a similar theme, with the typical Mercedes-Benz luxury appointments but with a sportier, AMG twist. The steering wheel is chunky and comes with AMG branding, metallic shift paddles and a pair of rotary dials/buttons that allow you to alter the various drive modes and settings.
The one on the right allows you to switch between the pre-set Comfort, Sport, Sport+ and Individual modes, while the one on the left can scroll between the various individual aspects to tailor the settings to the conditions.
In typical modern fashion the design is tech-laden, with a digital display for the instrument panel (that can be switched between various graphics) and a large, tablet-style central multimedia touchscreen that controls the majority of the car’s non-driving functions.
The iX was a bit divisive upon its original launch, because it was one of the early adopters of BMW’s current ‘big grille’ era.
The good news for the iX is that many have adjusted their expectations on that front and it now feels pretty well at home in the brand’s line-up.
The addition of the 'Iconic Glow' grille surround might be a step too far for some, but overall the iX has aged well and its exterior design hasn’t changed much because of that.
The adaptive LED headlights have new DRL elements, and the M Sport pack is now standard, but if you were only casually familiar with the iX you’d have to be looking closely to spot the update.
The new colour palette for the iX also includes the pictured 'Arctic Race Blue metallic', though I’m personally a fan of the iX in all black, giving it a more monolithic look.
Inside, it’s a similar story - what was once perhaps ahead of its time is now the expectation in an electric SUV. Minimalism in terms of physical controls, but plenty of space.
Helping the feeling of spaciousness is the now-standard panoramic sunroof, though a lack of physical shade is one of the iX’s few interior let-downs. Instead, it can electrochromatically ‘shade’, which still lets in plenty of light.
At night, ambient lighting joins the glow of the iX’s rather large 14.9-inch multimedia touchscreen and 12.3-inch driver display.
The new C-Class has grown slightly in size compared to the model it replaces, most notably with a 26mm increase in the wheelbase which you can feel in the cabin.
The front seat space is good, with excellent adjustability for the power-adjustable seats and steering column. I had no trouble finding my ideal seating position which makes for a more enjoyable and uncompromised driving experience.
Rear space is a bit tighter (which is typical for this segment/size of vehicle), but thankfully the standard seats do have very deep sculpting in the backs which allow for more knee space and foot room.
However, at approximately 180cm (six-foot), I wouldn’t like to sit behind my seating position for long periods as my knees were touching the seat back, and headroom is compromised with the panoramic glass roof.
In terms of small item storage there’s a lidded console box in between the front seats as well as a pair of cupholders and a small tray where you can place your mobile phone.
It’s worth noting, though, that early examples of the C 43 in Australia do not have a wireless smartphone charging pad, with that reportedly being introduced from February production.
While that’s good news, it’s not really competitive in this day and age to offer a car costing six-figures without such technology.
There’s also only a single USB-C power outlet in the front, which is another disappointment, but there is a pair in the back.
Mercedes does win some points back for a respectable 455-litre boot, which has a nice wide load opening that will make packing luggage easier.
The space on offer in both rows of the iX is a huge plus, and it might even be enough to make you look past some of the small downsides to the electric Bimmer’s interior.
The iX’s clever two-level central console has the phone charger pad and drinks holders down out of the way and means you can put distractions (phone) and your tall bottles out of the way. There's a slot above for your phone to sit upright with a gap under for charging, too.
The storage bin under the armrest also has plenty of space as well as a little shelf for smaller items you don't want to go hunting for, but the iX’s control panel and dial are still reflective and, at certain times of the day, this means distracting light getting in your eyes.
Speaking of distracting, I have found BMW’s multimedia software to be less intuitive and more complicated with each major update, and ‘OS 8.5’ is no different. At this point, using the brand’s touchscreen feels like operating an iPad on the move, with dozens of menu tiles to sort through.
But back to the physical space that is the iX’s interior - the big EV makes a lot of sense as a family car, especially if your kids are old enough to appreciate (and keep clean) the fit and finish.
Not only does the drive have a nicely adjustable and comfortable sports seat thanks to the M Sport pack, there's also heating and a massage function.
The front passenger gets the same, and the second row is borderline palatial. There's heaps of kneeroom, headroom, and even space under the front seats at their lowest setting to slot your feet.
The four-zone climate controls mean arguments are avoided, there is of course a central armrest, though even with it folded up and a person in the centre there's enough room in the back to be comfortable.
Behind that, the iX’s 500 litres of boot space could probably be expanded but at the expense of rear legroom, so it's acceptable. There is space under the floor for cables, but no space saver spare, just a repair kit.
There's a switch that allows you to fold the seats down from the tailgate, but you can also manually fold the middle seat for a 40/20/40 split rather than the more expected 60/40.
We’ll get to the major change under the bonnet shortly, but another significant alteration for this latest C 43 is the price.
It now starts at $134,900 (plus on-road costs), which pushes it well above its market rivals, the BMW M340i xDrive and Audi S4, which start at $104,900 and $106,200, respectively.
However, Mercedes has added more technology under the bonnet and loaded the C 43 up with standard equipment, including its '4Matic' all-wheel drive system, adaptive damping, rear-wheel steering and 20-inch alloy wheels.
In terms of creature comforts, the C 43 is well-appointed, with leather upholstery, a head-up display, augmented reality navigation, a panoramic sliding sunroof, and a Burmester 3D surround sound system.
There are two option packages for the C 43. The 'Digital Light Package' costs $2400 and adds Multibeam LED headlights with 'Ultra Range' highbeam, 'Adaptive Highbeam Assist Plus' as well as active light function and cornering light function.
The 'Performance Ergonomics Package' includes AMG Performance front seats, an AMG Performance steering wheel in Nappa leather and microfibre and the 'AMG Track Pace' system for an additional $5200.
The sole entry-grade iX is the xDrive45 M Sport, which brings with it more than the original base xDrive40, but also a price a few thousand dollars higher.
It starts from $142,900 but can quickly become much more expensive when you start ticking options boxes. But in this market segment, it's not that unusual, especially considering recent arrivals like the Polestar 3.
Given it’s only a little more expensive than before, the extra kit and higher grade that now forms the iX entry-point is impressive.
The 'M Sport' pack is now standard as the name suggests, plus there’s M trim inside like the steering wheel, the M seats and silver design highlights.
The LED lights are now adaptive and the glowing grille surround has also been added.
There’s also now a panoramic glass roof as standard, rather than an option, plus the steering wheel is heated and there’s now a tyre pressure monitor.
Aside from that, there’s plenty that carries over, like the wireless phone charging, wireless Android Auto and Apple CarPlay, 18-speaker surround sound by Harman Kardon, four-zone climate control and heated front seats.
There’s also an 'Executive Pack' which adds some comfort features like soft-close doors, privacy glass and front seat ventilation with rear seat heating. That one’s $6500.
Then there’s active steering, which brings the rear wheels into play for more manoeuvrability and stability for $3000.
Adaptive air suspension is $4000, while the most expensive option is a 30-speaker Bowers & Wilkins ‘Diamond’ surround sound system for $9500.
The biggest talking point about this new car is the engine, with AMG downsizing from the old C 43’s six-cylinder to a 2.0-litre four-cylinder turbocharged petrol engine.
But it’s not just any turbocharged four-pot, because it is fitted with technology that Mercedes claims has been inspired directly from its Formula One team.
While the F1 team engine facility is based in England, this engine was designed and developed by the Mercedes-AMG team at its Affalterbach headquarters, but the concept of the electric turbocharger reportedly comes from the engine that powered Lewis Hamilton to multiple world championships.
The electric exhaust gas turbocharger - to give it its official name - uses a small electric motor on the turbocharger shaft to spin up the blades without having to wait for any exhaust gases to pass through it first.
To power the electric turbo the C 43 is equipped with a mild-hybrid 48-volt electrical system.
Mercedes claims this means reduced lag and improved throttle response for a sportier driving experience.
It also helps make this small engine produce big amounts of performance, with AMG extracting 300kW of power and 500Nm of torque from this 2.0-litre, which is more power than the previous six-cylinder C 43 managed.
The engine is paired to a nine-speed multi-clutch transmission, which isn’t a dual-clutch with a pair of clutches operating on every second gear ratio, but instead uses a “wet start-off clutch” for better take-offs and smoother shifting on the move (at least in theory).
Power is sent to the road via all four wheels thanks to Mercedes’ 4Matic all-wheel drive system.
The iX has, as the xDrive part of its name would suggest, a dual-motor electric set-up with all-wheel drive.
Power and torque now total 300kW and 700Nm for the system in the xDrive45 M Sport, up from the 240kW and 630Nm on offer in the outgoing xDrive40.
BMW says the iX is now good to hit 100km/h from a standstill in 5.1 seconds, with its claimed top speed a nice, rounded 200km/h.
Despite the smaller engine you can hardly call the C 43 miserly, with a claimed combined urban/highway cycle rating of 9.1-litres per 100km. That’s only a 0.2L/100km improvement over the old six-cylinder.
On test, which included a return trip from Sydney to Bathurst via motorways and some dynamic back road driving, we saw a return of 11.8L/100km on the car's onboard computer.
While hardly hybrid-worrying, it’s impressive to think that driven modestly, such a potent engine can return a single-digit fuel figure.
The iX’s 94.8kWh battery allows a range up to 522km, but relatively low efficiency because of the size and weight.
Its 20kWh/100km is on the higher side of power use for cars around this size and this is part of the reason its huge battery capacity results in a fairly average driving range.
Maximum power input for DC fast charging is, however, up from 150kW to 175kW with the update, which is good news for those long drives.
Let’s start with the good news. The new Mercedes-AMG C 43 is a quick car. The engine may be small in size but the electric turbocharger does its thing and provides plenty of punch.
You can get a performance boost, too, thanks to the belt-driven starter generator, which acts as a mild hybrid and gives you a surge of 10kW for a brief period if you need a sudden burst of extra speed.
The chassis is well-sorted, too, at least from a dynamic point-of-view. The rear-wheel steering can provide up to 2.5 degrees of turning, which improves handling at speed and manoeuvrability when parking.
However, there are some less-impressive elements to the C 43, too. The obvious one is the drama, or rather the lack thereof.
As I said at the beginning, the C 43 has never been as wild or raucous as the V8-powered C 63, but when you buy an AMG there’s a rightful expectation that it will provide some thrills.
The C 43 simply doesn’t have that character about it. Yes, it’s fast, but it produces that speed with efficiency rather than excitement.
And it’s not an engine size problem, because even the 2.0-litre four-cylinder A 35 and CLA 35 offer more ‘wow factor’ than the C 43.
Yes, the engine makes noise under acceleration (and it can be altered between discreet and sporty) but even at its best it sounds muted and lacks the evocative tone of a V8 or six-cylinder engine.
Another disappointment is the transmission calibration, with the gearbox awkwardly shifting out of first gear on multiple occasions during our test drive.
In the taller gears it felt smooth enough cruising along, but given its low speed shifts we’d like to spend more time in the urban environment before passing final judgement.
The other notable element of the driving experience we struggled with was the ride quality. While fine on the smoother motorways, our test drive included time on some patchy country back roads and the C 43, even in the ‘Comfort’ suspension setting, was simply too firm.
Riding on low profile tyres, the adaptive dampers struggled to isolate the cabin from the imperfections in the road, leading to a fussy ride at times.
Overall the C 43 is a good car, but it feels like there are still some areas where Mercedes could improve it to make it really live up to the AMG badge.
The BMW iX was a relatively early entry into the catalogue of electric cars I’ve driven and because of that it had a couple of (in hindsight) unfair criticisms levelled at it.
For a start, it felt heavier than expected and its ride quality didn’t feel up to BMW’s standards - both things that plenty of electric SUVs have struggled with since.
But its drivetrain, design, and interior all impressed, aside from perhaps some of the aforementioned interior reflections.
Now years on, and the iX has aged well.
Some of the mechanicals and suspension also copped a tweak along with the entry iX now being a more powerful ‘45’. The result is a big electric SUV that holds up better than I remember.
‘Smooth’ is the key word that comes to mind in regards to a lot of the iX’s characteristics. While it’s still not perfect and feels heavy, the iX rides well in comparison to many SUVs on the market, including some of its close rivals.
Perhaps key to this is the fact its standard 21-inch wheels leave plenty of tyre to help the suspension soak up sharp edges on bumps, while we’re sure BMW’s handling engineers have learned more about getting the best out of a big, heavy electric vehicle in the last couple of years.
Road noise is well-muted as a result, and the shape of the iX doesn’t seem to lend itself to excessive wind noise. Even when you’re getting rather quick.
Despite being a 2525kg beast, its 5.1-second sprint to 100km/h is in the muscle car realm - the last of Holden’s V8 Commodores would do about that, for reference.
Its acceleration is also nicely progressive, rather than giving you an almighty but unnecessary jolt of torque right as you put your foot down. But once there’s traction and you’re rolling, the xDrive45 is impressive.
Meanwhile, its cornering and braking still reveal the heft behind the iX, it’s not something you can chuck around like a go-kart, but that’s also not really its area.
Anyone familiar with BMW’s steering characteristics will find the slightly higher force required for its weight (and thickness of the steering wheel rim) standard, though it’s still unnecessarily on the heavier side.
The C43 gets a comprehensive list of safety equipment that leaves little out. Obviously there are the usual passive safety items, like 10 airbags, including dual-front combined pelvic/thorax airbags and a front centre bag that drops between the front seat passengers to minimise the chances of a head clash.
Also included as standard is autonomous emergency braking front and rear (covering speeds between 7.0-200km/h), adaptive cruise control with active stop/go, a 360-degree parking camera, 'Active Parking Assist', 'Active Lane Keeping Assist', 'Blind Spot Assist' and, of course, anti-lock brakes with 'Brake Assist' and 'Adaptive Brakes' with Hold function and electronic stability control.
Also included are dusk-sensing LED lights, rain-sensing wipers and run-flat tyres with tyre pressure warning.
The C43 also comes equipped with Mercedes’ 'Driving Assistance Package Plus', which adds even more safety gear. This includes 'Active Blind Spot Assist', 'Active Brake Assist with Cross-Traffic Function', 'Active Emergency Stop Assist', 'Active Lane Change Assist', 'Active Lane Keeping Assist', 'Active Steering Assist', and 'Active Stop-and-Go Assist'.
While the C43 hasn’t been specifically crash-tested, the latest C-Class was rated by ANCAP with a five-star score for all models except the upcoming C 63 S E Performance.
The BMW iX holds a five-star ANCAP rating, which it earned under slightly more lenient testing back in 2021.
Seven airbags, auto emergency braking with cyclist and pedestrian detection up to 80km/h, lane-assist, rear-cross traffic alert and intersection assist, plus a surround view parking camera all help immensely.
The C 43 is covered by Mercedes’ five-year, unlimited kilometre warranty, which has become the new standard for the luxury car market.
Service intervals for the car are at 12 months/25,000km, which is on par with industry standard.
Mercedes-Benz Australia will offer a service plan for the C 43, prices were yet to be confirmed at the time of publication but the company has indicated it will be similar to the C300.
That means $550 for year one, $900 for year two, the third service costs $1000 and the fourth year service costs $2450 - for a total of $4900 for the first four years of ownership.
BMW offers a five-year/unlimited kilometre warranty with an eight-year/160,000km warranty on the battery.
BMW servicing takes place as needed rather than on a schedule, meaning you’ll be alerted via the car or app when a service is required in the near future.
For the iX a six-year all-inclusive service pack costs $3475, regardless of how many km you drive.
BMW has 54 servicing dealers listed in Australia, with each capital city covered and many more locations in the eastern states.