Mercedes-Benz CLA-Class vs Holden Calais

What's the difference?

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.

A best-of-both-worlds option that should have us questioning our SUV obsession, the Calais Tourer delivers plenty of practicality perks and a higher ride height in a dynamic and car-like package. The equipment levels are spot on, including the comprehensive safety package, and it you act smartly, you'll get a hugely long warranty to boot.  

It sure is thirsty, though, and we can't help but think plenty of owners would be happier with a smaller, more-efficient engine. 

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.

Less an SUV (happily), and more a high-riding wagon, the Calais Tourer borrows a little from the Subaru XV in its exterior design, sporting the same plastic cladding over each wheel arch. Clearly there is a whole heap of shared DNA between the Sportwagon and Tourer, and so it offers similar perks; like its SUV-shaming boot space. 

Elsewhere, the Tourer shares the same soft and rounded edges as the rest of the Commodore range, and while it is genuinely quite handsome from most angles, it is at its best viewed front on, where a simple front-end is bookmarked at each corner by a narrow headlight on top, and an encased fog light below. It’s all a touch understated, sure, but it looks sharp in the metal.

Inside, it’s a clean and functional cabin design, with most of the touchscreen functions controlled by a simple row of four horizontal buttons, and with a gloss-black surround encasing the centre console. The thin leather wheel feels lovely under the touch, and the contrasting door trims and soft-touch materials find their way into the backseat, too. 

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 Tourer serves up identical storage space to its Sportwagon near-enough twin, with 793 litres of storage (to the roof line) with the rear seats in place, and 1665 litres with the rear seat folded down. That’s about 200 litres more than the regular Commodore hatchback.

Where the Tourer does differ from the Sportwagon is in its exterior dimensions, measuring 5004mm in length (versus 4986mm in the Sportwagon) and 1525mm in height (versus 1483mm). Width and wheelbase are identical, though (1871mm and 2829mm), and so the interior space dimensions - like headroom and legroom - are identical no matter which of the estate-style Commodores you opt for. 

The key dimension here, though, is ride height, with the Tourer offering 20mm more ground clearance (42mm greater height overall) than the Sportwagon. That, combined with the on-demand all-wheel-drive system, allows for some light off-roading - though you won’t be conquering Everest.

Up front, expect two cupholders hidden under a gloss-black cover, as well as power and USB connections located in a central cubby. The back seat is home to two extra cupholders hidden in a pulldown divider, and there is room in each of the doors for bottles. The back seat is also home to air vents (but no temperature controls) and two USB charge points located just below the vents.

The Calais has long formed the most luxurious rung of the Commodore ladder, and the wagon-ish Tourer is without doubt the most practical version. It will set you back $45,990 ($47,990 drive-away) in the guise we’ve tested here, and $53,990 In Calais V specification.

Not to be sneezed at, then. But it does arrive with plenty of stuff to help justify your investment.

Outside, you’ll find 18-inch alloys, a handsfree auto-opening boot, heated mirrors, keyless entry with push-button start, a remote start function, rain-sensing wipers and automatic headlights with LED DRLs. Inside, expect leather seats that are heated in the front, a leather-wrapped wheel, dual-zone climate control, standard satellite navigation and a wireless charging pad for compatible phones.

On the technology front, an 8.0-inch touchscreen pairs with an eight-speaker stereo, and it’s both Apple CarPlay and Android Auto equipped. There’s also a genuinely impressive standard safety package, too, but we’ll drill down on that under the Safety sub-heading.

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.

A really rather good 3.6-litre V6 engine Is parked under the bonnet, feeding 235kW at 6800rpm and 381Nm at 5200rpm to all four wheels as required, thanks to an on-demand all-wheel-drive system. The suspension is tuned specifically for its high-riding antics, too.

The grunt is fed through a nine-speed automatic, and while Holden doesn’t quote a specific zero-to-100km/h time, it’s no slouch from the lights. 

The 3.6-litre engine means a braked towing capacity of 2100kg, and an unbraked max of 750kg.

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.

Not so good, I’m afraid. The offical number is on the high-side at 9.1 litres per 100 kilometres on the claimed/combined cycle (though that's less than the equivalent Subaru Outback), but we were averaging a smidge under 14.0L/100km after what was admittedly quite a lot of city driving. Still, that’s high.

Emissions are pegged at 212g/km or C02, and the Tourer’s 61-litre tank will accept cheaper 91RON fuel, or an E10 blend.

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.

Really very good. That 3.6-litre engine (why they haven’t offered the Tourer with the smaller and smarter turbo engine is something of a mystery) might be a touch old-school and a touch thirsty, but it’s a rich and powerful thing, and it gives the Calais-stamped Tourer a perky personality that defies its dimensions.

The Calais Tourer was built in Germany, and fitted with an engine and transmission from the USA, before undergoing local tuning here in Australia (think bespoke steering and suspension tunes calibrated both at the company’s testing facility and after a 200,000km test on Aussie roads), and it’s the last of those Dr Frankenstein ingredients that have had the biggest impact here. 

The Tourer’s ride is fantastic, perfectly poised between firm composure and everyday comfort, and - like most good wagons - it will honestly leave you wondering why so many people are clamouring aboard the SUV train when you can all the space with better dynamics in a humble estate. 

The nine-speed ‘box is smooth and sharp in its operation, too. But the fuel use is a concern. Sure, we spent the bulk of our time in the city, where stop-start traffic naturally uses more fuel. But then, surely so would most owners? 

You’ve got to hand it to the Lion for the standard safety package here, which includes the Holden Eye camera system as standard, adding auto emergency braking (AEB), lane keep assist, lane departure warning and forward collision warning. You’ll also find semi-autonomous parking, a reversing camera and rear parking sensors.

The Calais Tourer adds blind-sport monitoring and rear cross-traffic alert to that pretty comprehensive package. All of which helps the Commodore range qualify for the maximum five-star ANCAP safety rating.

Finally, you can add six airbags and two ISOFIX attachment points to the mix.

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.

Holden has recently relinquished the initial warranty offering, now including the Commodore in its seven-year, unlimited-kilometre warranty program, meaning it mixes with the very best in the aftercare business. For now, at least; normally, the Commodore carries the brand's standard three year/100,000km warranty. But be on the lookout for the return of this deal if you miss out this time.

Service intervals are pegged at 12 months or 12,000kms, and the Commodore falls under Holden’s extensive capped-price servicing program, and it will cost between $259 and $359 for each of the first seven annual services.