Kia Ev4 vs Mercedes-Benz C43

What's the difference?

An electric sedan is really shrinking the buyer pool, which is why Kia has such gentle expectations for the EV4 in Australia. But it's a lovely driving EV with plenty of perks, and the design alone will brighten up Australia's roadways. For my money, I'd either be going for the cheapest one that's sharp value with plenty of kit, or the flagship GT-Line that gets the big battery and the works in terms of equipment. The Earth for me sits in no-man's land.

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

Note: The author, Andrew Chesterton, is a co-owner of Smart As Media, a content agency and media distribution service with a number of automotive brands among its clients. When producing content for CarsGuide, he does so in accordance with the CarsGuide Editorial Guidelines and Code of Ethics, and the views and opinions expressed in this article are solely those of the author.

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.

The slippery-looking unit that adorns this page is the EV4 sedan. There’s also a hatch, but it comes out of Europe, while this one comes out of Korea, and that would likely make the hatch far more expensive than this bad boy. It's under study, apparently, but yet to be confirmed.

Anyway, to steal a hackneyed football analogy, for mine this is a game of two halves. I actually really like the front end. It looks sleek and slippery and there’s a real presence from the swollen arches.

I am, however, a little less sold on this rear end, which looks sharp and blocky and almost like it has been bolted on. Also annoying is the fact that it looks like it should be a liftback, with the boot hinged up above the rear windscreen. But nope, it's hinged below it, so you still get a dinky little opening to squeeze your stuff through.

Kia's international designers are pushing the boat out at the moment, and they deserve credit for making things different. Whether it sinks or swims with the general public, though, will be the real test.

Inside, it's all pretty traditional Kia, with all three models sharing the twin 12.3-inch digital displays, along with the little climate panel in the middle. Kudos to Kia for keeping some physical buttons, too. I'm less sold on the use of some cheap, hard plastics, even in the top-spec cars.

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.

At 4730mm long, 1860mm wide and 1480mm tall, the EV4 sits between the Model 3 and the Seal in terms of its outright dimensions. Kia says the EV4's wheelbase and interior packaging has been designed to maximise backseat space, which I must admit, there is plenty of.

Sitting behind my own 175cm driving position, I had miles and miles of leg room, and enough head room, though there is some kind of optical illusion that occurs in the backseat of the EV4 – even though you definitely have enough space, the dark materials of the GT-Line still leaving me feeling a little claustrophobic somehow.

Something else not to be sneezed at is the inclusion of the household-style power plug in the back. My laptop died while I was taking notes on my test, and I plugged it straight in and powered it up. Super handy.

At the back, there is 490 litres of boot space, which is about middle ground. The Seal is more like 400 litres, but the Model 3 offers more.

Sadly the EV4 is yet another EV that does not have a spare wheel of any kind. Instead you have to make do with a tyre repair kit.

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.

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.

All EV4 models are front-wheel drive, with a single front-mounted motor producing 150kW and 283Nm, fed through a single-speed gearbox. That’s enough, Kia says, to knock off the sprint to 100km/h in around 7.5 seconds. The Air is the fastest, at 7.4s, while the heavier Earth and GT-Line claim 7.8s. Top speed is a claimed 170km/h.

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.

Let’s talk about range for a moment, because it's bloody impressive. Not quite the best out there, but the furthest any electric Kia has ever travelled between charges.

There are two battery options, a 58.3kWh NCM battery in the Standard Range, and a 81.4kWh unit in Long Range models. The Standard will deliver 456kms in driving range, but the Long Range ups that to 612kms, both on the WLTP cycle. 

The EV4’s 400-volt architecture does slow down charging a little, though, with DC fast charging capped at 128kW. That means going from 10 to 80 per cent in around 30 mins when using the fastest chargers. If you’re using a 50kW charger, it’s up to almost an hour and 20 minutes for the bigger battery, which is a long coffee stop.

Plugged in at home, provided you have an 11kW wallbox, it’ll take just under five and a half hours, or just over seven hours, to go from 10 per cent to fully charged, so an overnight charge no matter the battery size.

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.

I learned something new and exciting (well, to me, at least. You might be very bored) from Kia's ride and handling guru on this launch. And that is that the tuning frequency for common city road imperfections, like bridge expanders, is actually the same as for the bigger, bouncier undulations you get on country roads. And so you can tune to prioritise one or the other, not both.

In real terms, it means a car that feels custom-built for the city, gliding over urban roads with mega comfort (which is exactly what the EV4 does), feels slightly less at home out of town, where there is more obvious movement in the cabin.

Bored yet? Ok, the point is that, while never uncomfortable, the EV4 feels right at home in the city, which is where it's expected to spend most of its time, but weirdly firmer on longer adventures. 

This really is easy, city EV motoring, done well. There's no alienating floatiness to the ride, no lifeless lightness to the steering, it's comfortable, quiet and – despite no headline-grabbing power figures – more than potent enough to get you up and moving.

There's nice weight to the steering, and though the front tyres gave up their grip a couple of times when pushed with some steering lock on, there isn't much in the way of aggressive body roll, and it all feels pretty confidence inspiring. 

The power is most effective from around 10km/h to 80km/h, before the urgency starts to fall away – it's slower to respond at freeway speeds – but that too just leans into its city credentials.

There's really not much to complain about here. It feels well sorted, and quite fun to drive. There is nothing that really stands out as spectacular about the drive experience, but nor is there anything to complain about. It's just really solid motoring, which isn't always guaranteed these days.

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 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.

Kia ownership proposition is simple, and pretty strong. You get a seven-year warranty no matter how far you travel, an eight-year warranty for the high-voltage systems, again no matter how far you travel, and capped-price servicing. Pre-paying your service costs will set you back $688 for three years, just over $1300 for five years, or just under $2000 for seven years.

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.