Mercedes-Benz C43 vs Lexus LC500H

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 truly fuel-efficient performance car, who’d have thought? There are some obvious trade-offs for trying to exist in two seperate worlds, but the Lexus LC 500h largely handles its dual roles with aplomb.

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.

It's a little curious, the LC 500h. For mine, it's stunning from a distance. All gleaming alloys and bulging rear arches and sharp snout angled downward like its caught the scent of its prey.

But weirdly, it can start to look a little less impressive the closer you get to it - a little swollen and vague in its lines. It's very likely it's eye-of-the-beholder stuff (fellow CarsGuide scribe Richard Berry adores it from every angle, for example).

Inside, the front of the cabin is a busy but stylish space, with multiple textures layered on top of each other to produce a premium-feeling, sporty space. The low-feeling dash juts out, giving the front passengers an ensconced, cockpit feel.

Everything is predictably leather-wrapped and lovely, and while it's not as streamlined as, say, an Audi interior, it's not without a genuine sense of Japanese charm in the cabin.

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.

It's not really. Especially in the backseats, which would make more sense if they were painted on. I'm no giant, but even my 175cm-tall head was pushed into the ceiling, and while there’s ample shoulder space for two adults, you’re unlikely to be able to convince two to get back there. 

Lexus has included something called the "Easy Access" function for 2020, which sees the front seats slide forward automatically to help with accessing the rear seats, and they do lower the Cirque du Soleil antics required to get back there, but this realistically not a car for carrying more than two adults, save an emergency. There are two ISOFIX attachment points in the rear, so child seats can be locked in there. 

That's not necessarily a drawback, though. This is a two-door sporty coupe, after all, and elsewhere, the sizeable dimensions (4770mm length x 1920mm width x 1345mm height) provide plenty of space for up-front riders.

You'll also find hidden cupholders, bottle holders in the doors, and all the power and connection points you need. 

A word on the tech, though. The LC 500h is crying out for a touch screen, though the brand's traditional mousepad system is improving.

Value is all about perspective, of course, and viewed the right way, the $195k sticker price of the Lexus LC 500h does provide a certain amount of value.

Yes, it's a lot of money. But Lexus' flagship coupe doesn't just get a performance-focused hybrid setup (pairing with a thumping V6 engine), but also just about every high-end feature the brand has in its deep bag of tricks.

It starts outside with giant 21-inch alloys, a glass roof with a sun blind,  LED headlights with cornering lights, hidden door handles, keyless entry, and rain-sensing wipers.

Inside, you'll find leather-accented seats, a colour head-up display, a 10.3-inch multimedia screen with Apple CarPlay and Android Auto, another 8.0-inch screen in the driver's binnacle, a heated steering wheel, heated and cooled front seats, DAB+, satellite navigation system with live traffic, and a killer 13-speaker, 918-watt Mark Levinson stereo.

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 LC 500h is powered by a hybrid setup that combines a 3.5-litre V6 engine with a 650-volt "Lexus Hybrid Drive" system and a lithium-ion battery. That setup delivers 264kW of power, and somewhere north of 350Nm in torque when the engine and motor outputs combine.

That power is sent to the rear wheels via a CVT automatic, and will produce a sprint to 100km/h of around 5.0 seconds. 

According to Lexus, 10 clear improvements were made the way the 2020 LC 500h drives, including a new transmission tune, more structural bracing added for rigidity, new suspension components and spring rates, and altered stabiliser bars. 

Has it made a difference? Read on. 

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.

Lexus says the LC 500h will sip 6.8 litres per hundred kilometres on the combined cycle - very impressive for what is ostensibly a performance coupe - and emit 152g/km. 

The LC 500h is equipped with an 82-litre fuel tank. 

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.

There’s something very strange about hitting the start button in what is ostensibly a sports car, and being greeted not by the bark of an exhaust, but by the gentle whirring on the car’s electronics coming to life.

But then, the Lexus LC500h is not your average performance car.

It essentially trades the out-and-out grunt of its V8-powered sibling (which produces a monstrous 351kW and 540Nm) for a kind of best-of-both-worlds approach that pairs the punch of the V6 engine with the fuel efficiency of a hybrid powertrain. 

If that sounds like an compromised approach to pure performance, you're right. But reframe the way you look at the LC 500h and it all starts to make a bit more sense.

Remember, this isn't a track-attack weapon, but a potent on-road bruiser, and the flow of power on offer always feels ample, and you never want for too much more off-the-line pace on public roads. 

Among the biggest selling points of the LC 500h is the sheer distance between its various personalities. Engage Eco, or even Normal, drive modes, and it’s a quiet, mostly very comfortable (though it can be unsettled by bigger bumps) kilometre-eater, but engage Sport or Sport Plus and it rightly transforms into something significantly angrier.

It might not be the absolute sharpest tool in the performance car shed, but the LC 500h does bristle nicely when those modes are engaged, the hybrid factor seemingly replaced by a satisfyingly meaty exhaust note and an accelerator that’s suddenly far more sensitive to the touch.

The steering feel is nice and the inputs direct, but there is something about the car’s 1980kg weight that doesn’t inspire the deepest of confidence, at least not on the rain-slicked roads we were travelling along .

A pure performance coupe? Perhaps not. But a sporty, stylish and, when you want it to be, comfortable cruiser with the ability to turn the volume up when you come across a twisting road? Bingo.

The Lexus LC 500h is yet to be ANCAP tested (the price would likely prove a sticking point), but the Japanese brand has fine form in attracting top marks, and there's certainly no shortage of safety features on offer here. 

There's a total eight airbags and a reversing camera and parking sensors, as well as a host of high-tech kit like AEB, Lane Keep Assist, Blind Spot Monitoring, active cruiser control and a bonnet that will sense pedestrian and pop up before impact in an attempt to minimise injury. 

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.

So, to ownership. Let's start with the basics first, before we move onto the new Encore Platinum benefits. 

The LC 500h is covered by a four-year/100,000km warranty, and servicing (capped for three years at $595 a pop) is required every 15,000km.

You will know already the Lexus's stellar Encore ownership program includes handy features like valet (pick-up and drop-off) servicing, but the new Encore Platinum level for owners of its more exclusive models unlocks some seriously cool stuff. 

One is a new On Demand service, which allows owners to book a different style of car when heading off on a holiday or business trip. So, say you own the LC 500h, but want to take the family to the snow and need a seven-seat 4WD like the RX L, then Lexus will lend you one at no charge, which you can keep for eight days.

The loans are available in your state or somewhere else in Australia if you're travelling, with your car waiting for you at Qantas Valet for you when you arrive. 

The One Demand service is available on four occasions over your first three years of ownership (which is also the length of the Encore Platinum membership). 

The Platinum level also provides eight examples of free valet parking at select shopping centres, as well as hotel and restaurant benefits, and invitations to Lexus' drive days around the country.