Subaru WRX vs Mercedes-Benz CLA-Class

What's the difference?

The new-generation Subaru WRX is a more accomplished, complete and mature car than ever before. If all of that sounds good to you, you’re going to love it - but I’m also totally going to understand if that would put you off, because it isn’t necessarily the same sort of car we’ve come to expect it should be.

But as the latest example of the breed, the WRX - especially as a sedan - is an engaging, fun car to drive. I just think the wagon would ultimately prove a lot easier to live with.

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

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.

You are going to make up your own mind about the look of the Rex. Let me just say this - don’t judge it by the pictures. It looks a lot more, er, agreeable in person. 

I’ll admit it - I was a bit uncertain about whether I would like it. I saw the pictures online and thought it looked a bit awkward. Those squinty headlights, the hexagonal wheel arches, the tapered rear quarter panels and small tail-lights… All of that makes it a bit hard to pick a “good” angle of the car. 

But in person it is a more cohesive piece of automotive design than it might appear at first glance. And look, the choice by Subaru to fit the WRX with the more aggressive looking lower body kit/rugged plastic finishes to the sedan, rather than the wagon, might seem weird to you.

But the brand insists the decision was made because the WRX sedan is more aimed at those who want the more angry look, while the wagon is more aimed at parents and family buyers.

Now, look, I’m a parent, and a potential buyer of a WRX wagon, and I’m frustrated Subaru doesn’t have a wagon with that lower body effect package. It looks narrower and less purposeful on the road as a result, and there’s even more reason for that - the wagon is narrower in the body, with skinnier front and rear guards.

You might be fine with the look of the wagon, compared to the sedan. But I think it would have benefited from less of the Levorg look, and more of the real Rexxy raucousness the sedan gets.

Now, Subaru has said it might consider customer feedback if there’s enough customer demand for a more macho wagon. And hey, the brand has a history of listening to customers and making the cars more appealing as the generation evolves - think about the third-gen WRX which launched with a narrow body but soon fattened up to look meaner…

Other notes on the design: the WRX wagon has different wheels, which are fitted with narrower, less aggressive tyres - it runs Yokohama Blue Earth GT tyres in 225/45/18 size, while the sedan, in keeping with its more intentful bent, runs far superior Dunlop SP Sport Maxx 245/40/18 tread. As a result, the wagon has a narrower front track (1550mm vs 1560mm) and rear track (1545mm vs 1570mm).

I’d love to see a more hardcore looking WRX wagon. Tell me if you agree or disagree in the comments below.

For context, here are the dimensions of the new WRX in sedan and wagon body styles:

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.

Obviously with a proper station wagon as part of the range now, it’s a much more practical WRX than we’ve ever seen before. But that doesn’t mean the sedan is impractical - rather, both are really quite well packaged and thought out for the most part.

Let’s start at the back, with the boot space. Cargo volume for the wagon is 492 litres with seats up and 902L with the back seats folded down (and 1430L to the ceiling). The cargo capacity of the sedan is 411L (RS and tS) to 414L (base model).

Hopefully we’ll get a chance to see how they fare with the CarsGuide luggage and / or a pram soon, but the boot openings for both versions are big and the load lips easy enough to contend with. All models have a space-saver spare wheel, too.

Back seat space is good for anyone who isn’t much taller than me. I’m 182cm (6’0”) and found my head was almost brushing the ceiling in the sedan, but I had a bit more head room in the wagon. Leg room with the driver’s seat set for me was good, and the toe room was only just adequate (I’ve got pretty big feet). 

Storage in the back is okay, with map pockets, bottle holders in the doors, and a flip-down armrest with cup holders. 

Parents will appreciate the ISOFIX child seat anchor points in the outboard seats, three top-tether hooks, and adjustable air-vents in all grades - so long as you buy an automatic model (manual versions miss out on rear directional air vents). The top two variants also have heated outboard seats and rear USB ports to keep occupants of all ages happy.

Up front the space is good, with a roomy feeling cabin courtesy of big windows and thin windscreen pillars.

The dashboard is dominated by that large 11.6-inch touchscreen, and it looks typically bold and colourful from Subaru. It’s mostly a really usable screen, with some hard buttons for the dual-zone temperature settings, demister, and volume and tuning knobs as well. The button that’s missing that I found myself cursing was air-con recirculation - it’s instead two touchscreen presses away.

There’s the requisite smartphone mirroring tech with wired Apple CarPlay and Android Auto, and the top models have sat nav. The top two specs also have a CD player hidden in the centre console bin, which is odd - but maybe the customer who appreciates built-in nav also likes CDs still… what was I saying about this car appealing to an older demographic…?

Storage is okay up front, with bottle holders in the doors, cup holders between the seats, that centre console bin, and a good glovebox. But a lack of wireless smartphone charging is a disappointment, and the section in front of the gear selector is too small for most smartphones.

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.

Gone is the old 2.0-litre engine of the previous WRX, and in its place is a 2.4-litre turbo-petrol four-cylinder ‘Boxer’ horizontally-opposed motor, with a power bump for this generation.

It now pushes out 202kW of power (at 5600rpm) and 350Nm of torque (from 2000-5200rpm), which represents a modest 5kW increase and the torque figure is dead on what it used to be.

You might be scratching your head at that, thinking Subaru has somehow made a mistake. The engine has 20 per cent greater displacement, but yet no significant difference in terms of the outputs? 

I questioned the brand’s boss and engineers about this, and they said “you don’t drive a spec sheet”. That is to say, the usability and drivability of the new engine is where you notice the more linear delivery of the torque, so admittedly, it’s not a wow-factor moment … until you drive the car.

There is a choice of a six-speed manual gearbox (sedan only), or a continuously variable transmission if you choose the wagon or one of the auto variants. Subaru insists it’s not like the CVTs of old, and in fact insists upon calling this gearbox the Subaru Performance Transmission. It has paddle shifters and throttle blipping, and eight ‘ratios’ available, with stepped ‘shifts’ as you accelerate decelerate.

It still sends power to all four wheels using Subaru’s symmetrical all-wheel drive system - manual versions come with a locking centre diff and viscous limited slip diff, where CVT models run a variable torque distribution system.

If you’re wondering, the 0-100km/h time for the manual is 6.0 seconds (identical to the last WRX) and the auto is 6.1 seconds (was 6.3). The auto figure is for both sedan and wagon.

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.

What price do you pay for WRX levels of performance when it comes to the pump? That’ll depend on the transmission you choose.

The automatic versions are better on the official combined cycle, with a stated figure of 8.5 litres per 100 kilometres. Choose the manual sedan and that figure jumps to 9.9L/100km.

On the test loop for the launch - which was hardly what I’d call “regular roads with a normal driving manner” - I saw 13.4L/100km indicated on the dashboard of the manual sedan, and an impressive 9.8L/100km for the auto wagon.

All models have a thirst for the good stuff, though, with 95RON premium unleaded required.

Fuel tank size is decent at 63 litres, so even if you’re driving it pretty hard you should be able to get more than 450km to a tank. 

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.

If you’ve scrolled down past all the other sections of this review to the driving part, I understand who you are. You’re the sort of person who actually cares about how a WRX drives – and the good news is that his new generation model drives very, very well. Well, actually, that depends on what you define as a good drive.

If you are after the immature, extremely enjoyable edge-of-your-seat experience that we’ve come to expect from the WRX, then you might think this new generation model has gone soft. And in some ways it has. 

The wagon, for instance, has a different suspension tune to the sedan. And it is indeed softer – and that’s intentional. Subaru says the buyer type for the Sportswagon is one who expects a level of comfort and ease of use that isn’t necessarily high on the priority list of the customer looking at the sedan.

As such, the sedan model has a more rigid suspension setup with stiffer springs and firmer dampers to ensure that the boy/girl racer is still appeased by the drive experience. And in the sedan you do feel a lot more of the road surface below you, with a firmer, more unapologetic ride. Where as in the wagon it is more disciplined and comfortable in almost every single situation.

The difficult bit is that the wagon in top-spec guise has even more intent to its suspension, because it is offered with the adaptive chassis control system. That means that it rides as firmly as the sedan when it’s in its sportiest drive mode setting. So, if you are after a more aggressive drive and you want a station wagon version of the WRX, then unfortunately you’re going to have to opt for the top spec wagon. That’ll leave some customers upset, because the extra $10,000 may not be easy to come by.

You need to consider that the tyre package is different between the two body styles as well. Even in the top-spec version of the wagon, you get a less aggressive tyre, and that means that it doesn’t have the same level of aggression in corners and isn’t as grippy, either. The easy solution in my mind would be to select the wagon but see if I could option a set of the sedan's wheels and tyres to improve the drivability and grip in the corners.

That isn’t to say that there isn’t enough grip, just that you can feel the wagon shimmy more in tight corners than is noticeable in the sedan, which has a significantly more sticky road presence. The Dunlops do it justice. The Yokohamas? Not so much.

The steering in both models is quite light and quite darty, and while I wouldn’t say that it’s the best steering of any car in its class, it does seem to be an improvement over the existing model. The drive modes can affect the way the steering behaves, and if you do happen to choose the top spec tS version then you can individually adjust the steering (as well as the suspension, power train, air conditioning, and safety systems). Even so, in the wagon the steering is still more likely to exhibit a bit of push-on understeer in tighter, faster bends. Not as evident in the sedan.

What about the elephant in the room then – it’s a bigger engine but with not a big power increase and has zero per cent torque adjustment over the existing model.

It is a better engine than before – like I said, it lacks that whip-crack personality of the old one, and it has removed a bit of the guesswork as to when you’ll be able to get the turbo to sing the tune that you wanted to. But, it is more linear in the way that it builds speed, and while it isn’t as visceral experience (a sports exhaust option would definitely be welcome, Subaru Australia!), it is a more refined and easy car to drive fast.

The other elephant in the room (yes it’s a big room) is the CVT automatic. This isn’t a new transmission – the last WRX auto had a CVT – but this one has been significantly reworked for a more aggressive characteristic and it is noticeably better. I wouldn’t say that it’s as technically pleasing as a dual-clutch automatic, especially in spirited driving, but it is definitely well suited to the character of the new car.

The auto does have paddle shifters so you can take matters into your own hands, and Subaru boasts that the up- and down-shift response times have been significantly improved. However, I didn’t like that the paddle shifters still overruled me in some situations - I felt like it took a bit of control out of my hands (no doubt in the name of mechanical sympathy, but even so, this is a sports car, right?).

The manual version remains a pick for those who really want to drive their WRX as a WRX ought to be driven. It’s the most engaging of the drivetrain options, and the shift action has been improved over the last model to offer a quicker feel between the gates, and the clutch action is nicely weighted as well. It is a serious shame that Subaru has missed the opportunity to sell a manual Sportswagon version of the WRX, and I sincerely hope that the brand rethinks that strategy at some point in the future. I know that for potential customers like myself, that would make the car even more appealing as a station wagon.

So, in summary, the fifth generation WRX is a more mature and high-tech drive experience than ever before. That comes at the expense of the larrikin nature of the earlier versions – but it isn’t necessarily a bad thing if you ask me.

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.

Subaru offers a five year/unlimited kilometre warranty covering the car, but just be aware that if you drive your car on the track, you might void that. Subaru says it has no plans to follow the lead of Hyundai N to cover track driving, but insists the brand will back its customers. 

Either way, the warranty cover is par for the course these days, and roadside assistance is included for one year from purchase. Other rivals offer years more coverage.

What has improved for this generation of WRX is the servicing situation.

There is capped price servicing for five years or 75,000km, meaning the intervals are finally set at 12 months/15,000km - no longer the pesky six-month/10,000km maintenance schedule of the previous model.

It depends on whether you choose manual or auto as to what price you’ll pay for maintenance, but there’s not a whole lot in it. The six-speed manual versions average $487 per annum over the five-year capped price period, while the auto versions are a little more affordable to maintain, at an annual average of $473.

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.