Lexus LS vs Mercedes-Benz CLA-Class

What's the difference?

The LS500 is the least logical version of the most logical option in the ultimate luxury sedan segment in which logic doesn’t often apply at all. 

Take from that what you will, but if it was me being driven around I would definitely be opting for the hybrid version of the LS instead for its smooth electrified driving characteristics and lower operating costs.

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 distinctive but conservative style of Lexus is on full show across the LS’s massive frame. Like other cars in its class, it’s very much the image of the brand itself with styling points strong, but to me not as impressive as the LC500, which is a definitive expression of the brand.

The LS also has many styling points of the previous-generation Lexus design language which are in the process of being phased out.

The car was only updated last year, bringing with it a more recent interpretation of the brand’s big spindle grille, pointy headlight profile, and angular but traditional rear.

The LS - even in this Sports Luxury guise - does look quite menacing from certain angles. The width and stance of this car is accentuated by its curvaceous rear guards and big square front bumper, with the elegance of a classic three-box sedan maintained in a side profile.

The chrome wheel finish is a bit much for my taste, but there’s no doubt they’re real show pieces. They’d better be, too, because I hear they are incredibly expensive should you need to replace one.

The inside has highs and lows but it’s the place where you can most tell the LS has been on sale for a while.

I love the plush seats, big screen, integrated analogue clock and three-dimensional door card design, which sell the flagship luxury feel.

But this car’s age is on show with its clunky and much maligned 'Remote Touch' pad controller (which Lexus is at long last phasing out in its new cars), last-generation software suite, and its small, crowded instrument cluster.

There are a whopping nine interior trim combinations to choose from and ours has the most recently added black leather and ‘Nishijin Haku’ themed highlights which are meant to be inspired by the way "moonlight sits on an open sea".

The feel is a bit '90s, a rough textured fabric with a silver detailing and elements clad in a thin platinum foil, making you feel like you’re in a classic high-class Japanese taxi.

But I’ll admit it plays well with the ambient lighting effect in the doors, and is a unique selling point compared to the standard leather finish.

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.

For passengers, as you’d expect, the LS is stellar. The massive outboard rear seats offer plenty of room, and are complete with reclining, message, and cooling functions.

Adjustable vents feature, with quad-zone climate, and the screens come with individual headphone jacks and HDMI-in so you can bring with you all sorts of entertainment options for those longer journeys.

Other suitable additions worth noting include the wine cooler (although it’s a bit small for anything other than minibar-sized beverages, hardly the 007 trope of rolling out a full-size bottle of Bollinger), flip-down mirror with a light in the roof, and the touch panel controls in the armrest. I also appreciate the built-in sunshades. Nice touch.

Less impressive is the general vibe of the middle seat. With a large raised centre split in the floor and such wide and lavish outboard seats, the middle seat feels a bit forgotten.

Up front, the practicality offering includes a high level of adjustability for the seats to suit a wide range of driving positions, electrical adjust even for the steering column, and a nice wide seat which you simply sink into.

Of course, soft finishes adorn even unseen parts of the cabin so you’ll never touch a nasty hard plastic, and there are large storage areas in both the doors and centre console box.

This big armrest console also hides the USB connectivity within, and there’s a set of big cup holders with a flip-away lid if you want the wood grain design uninterrupted when they are not in use.

I have to mention the useless touchpad controller here, but hand the brand props for offering a collection of climate shortcut buttons on the dash, an actual volume knob, and truth be told you don’t need the touchpad anyway because the screen is touch. Just be ready for the matching last-generation software, which isn’t the best to use or navigate.

The boot has a volume of 440 litres which sounds plentiful, but the actual use of it is a reminder of one of the reasons SUVs are so popular.

Yes, it’s big and reasonably deep, but putting the largest CarsGuide case in there proved a bit clumsy as you have to lift it over the tall rear bumper and it only just clears the top of the relatively small opening.

I love sedans, but this is one area where you can see the benefit of a hatch opening, particularly if you were frequently doing the airport run.

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.

The LS500 packs a 3.4-litre twin-turbocharged V6 petrol engine with impressive peak outputs of 310kW/600Nm.

This engine is designed to replace a V8 in terms of its power and feel, and in a lot of ways it does.

It might surprise you to learn the only other place you’ll see this engine used in Australia is the Toyota LandCruiser 300 Series.

The alternative present in the LS500h is a hybrid version of the same engine, sans the turbos.

With its electric assistance, power outputs are lower than this turbo version, but get close with a combined total of 264kW.

While I like the walloping nature of the turbocharged V6 we drove, I think the hybrid is a no-brainer choice for reasons explained in the driving segment.

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.

Given the angry sounds emanating from under the bonnet of this LS every time I put my foot on the accelerator, I was surprised to find overall fuel consumption for the week was surprisingly good.

I used the LS to drive mostly around town, and yet it beat its own urban claim of 14.2L/100km, settling at 12.9L.100km, closer to the combined fuel figure of 10L/100km.

The hybrid is said to nearly halve this consumption, and I’m inclined to believe it based on previous experience with Toyota/Lexus hybrid systems. 

The LS500 requires at least 95RON unleaded fuel and has an 82-litre fuel tank. That means you're looking at a range of around 635km, using our real-world figure.

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.

For a seemingly very sophisticated car, there’s something decidedly unsophisticated about the way the LS500 feels from behind the wheel.

Immediately, it feels nowhere near as cutting edge or even as special as something like the LC500, which to me becomes the truest expression of everything Lexus.

No, the LS500 in this turbo V6 guise feels a little bit too old-fashioned. It’s quiet and under acceleration feels like a V8 of just a few years ago, but the Aisin-sourced traditional torque converter automatic transmission is, dare I say, ordinary, lacking the finesse of its German rivals. It’s a problem which is easily solved. Pick the hybrid.

Elsewhere the experience is decidedly Lexus. If you’ve driven even an IS the experience is very familiar in the LS. The touchpoints all match, the steering is light and smooth with a healthy serve of electrical assistance, and, for the most part, the ride is as floaty and comfortable as you’d expect.

I say ‘for the most part’ because there are limits to what the LS’s adjustable-height air suspension will filter out on the enormous 20-inch wheels, complete with run-flat tyres.

Small bumps and potholes are dispatched with ease. Anything too large which passes a certain thud-factor will definitely be communicated to the cabin, though, making for a strange all-or-nothing ride quality.

It is impeccably silent inside, though. The engine is distant, even under load, and tyre noise is virtually non-existent thanks to specially designed alloy wheels with hollow chambers designed to minimise this effect. Now that’s more like what I expect from a Lexus.

It handles very well for such a big unit, making it at least decent to drive for the few buyers who will actually take the helm themselves.

This is no land yacht, it’s a surprisingly agile and adept machine when faced with a bit of blacktop. And it's here where the turbocharged V6 comes into its own compared to the hybrid, offering superior driver engagement.

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.

Lexus offers a five-year and unlimited kilometre warranty, and LX buyers get three years of complimentary membership to the brand’s ‘Encore Platinum’ owner experience, which includes three years of capped price servicing, free loan cars at the time of service, invites to events, discounts on fuel at Ampol outlets, and four uses of ‘Lexus On Demand’ which lets owners swap into another Lexus model for up to eight days at a time, as well as eight free uses of valet parking at certain locations.

Servicing on the LS occurs once every 12 months or 15,000km and is fixed for the first three years at $595. Very cheap for the space it plays in.

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.