Mercedes-Benz C63 vs Lexus NX300

What's the difference?

The Mercedes-AMG C 63 S Aero Edition is an absolute beast of a car, but it comes at a pretty hefty price. Yes you get a lot of performance, and the fact there are only 63 examples being made for Australia and New Zealand could be enough to get you to sign on the line. For me, though, if I was after a C 63, it’d have to be a wagon. It doesn’t need an Aero pack to look better.

The Lexus NX 300h F Sport is both a comfortable and luxurious family hauler that is held back by just a few things.

Of course, gripes like the underwhelming dynamics might not be an issue for all, but the less-than-stellar fuel economy (for a hybrid, at least), disappointing practicality and fiddly multimedia will affect all potential buyers.

However, this is balanced out by loads of equipment and premium appointments for a reasonable price, which should put the Lexus NX on your shopping list if you are keen for an inner-city premium SUV cruiser.

I’ve never been the biggest fan of the current C-Class Coupe’s styling. To me, it has always looked a little droopy, a little melted at the back. 

I have to say, the Aero Edition has changed my opinion somewhat, as the new graphic elements help lift it up a bit, visually raising its rear up like a stretching cat, tail in the air. I’m still not 100 per cent on it, but to my eye it’s better.

The carbon-fibre trim elements that have been added to the exterior certainly add some menace to the look, too, and I simply can’t help but constantly notice out of the corner of my eye the AMG pressing in the staggered, dished rims. At a glimpse, from a distance,  it looks like rim damage, but thankfully it’s not!

The staggered set-up does really add some width and mongrel to the look, as if it needed more, with its open maw lower bumper air dam, and the signature 'Panamericana' grille treatment which looks like an evil character out of a movie. If you know the one I’m talking about, let me know in the comments.

As much as the look matters when it’s parked in your driveway, it’s the cabin that arguably matters more, right? That’s where you spend your time, after all. Check out the interior images to see if you think it lives up to the exterior look.

Lexus might have been known for drab and dowdy styling in the past, but the NX’s sharp aesthetic is head turning and attention grabbing in all the right ways.

Though the NX first hit Australian showrooms in 2014, after six years we reckon it wouldn’t look out of place strutting down a catwalk, and can easily hold its own in the design department against the likes of the Audi Q5, BMW X3 and Mercedes-Benz GLC.

From the front, you can’t miss the trademark Lexus spindle grille, which, with its trapezoidal shape, gives the illusion of a wider and more aggressive car.

The high-set, slender headlights also gives the NX a wide stance, while the sweeping daytime running lights and sharp bumper design give the impression that the NX is cutting through water.

In profile, the NX is characterised by a strong shoulder line, chiselled lower doors and narrow glasshouse, while the black plastic wheelarch cladding hints at its SUV status.

The black trim detailing on the tail-lights almost make it look like the NX has narrowing cartoon eyes from the rear, but the subtle diffuser and large bumper soften its look a little.

If you can’t tell, we dig the aesthetics of the NX, especially the subtle exterior features such as crystal-like front foglights and the unique side mirror design.

Step inside and those neat little design touches continue.

From the almost folded fabric-like design of the door trims to the soft-touch surfaces throughout, the NX’s cabin oozes luxury, class and quality.

The centre stack shape mirrors the front grille’s trapezoid shape, while all the buttons and switchgear have a nice heft and weight to them, and are laid out in an easy-to-use, ergonomic fashion.

Sure, look a bit closer and you might see some carryover items from lower-end Toyota models, such as the cruise control stalk but, be honest, if we didn’t point it out, would you have even noticed?

No two-door coupe is going to offer you the space and comfort of a sedan or wagon, that’s just a fact. But that only matters if you plan to actually use the rear seats. If you don’t, then the Coupe version of the C 63 S might be perfect for you.

Even so, I managed to (only just) squeeze myself between the seat and the door opening to slide into the rear row. This won’t be easily achieved by all attempters, especially on the driver’s side.

Let’s just say I probably looked like I was doing something very weird to the driver’s seat as I spider-manned my way in. 

The rear space is tight for someone my height (182cm/6’0”) behind their own driving position, with knees hard-up against the seat in front and not much headroom (my noggin’ was brushing the ceiling) or toe space (size 12s don’t fit so well) to speak of.

It’s certainly a selfish car. Or maybe it’d be fine for smaller kids. There are two spaces in the back, both with ISOFIX child seat anchors and top-tether points.

But there is storage in the back - cupholders and storage caddies either side of the seats, though the storage situation improves in the front zone, with bottle holders in the doors, cupholders between the seats, loose item storage under the media screen and a covered centre armrest bin, too.

The front cabin is a special looking place, with carbon-fibre abounding across the dash and nice trim on the doors. The AMG steering wheel is a sight to behold - it’s a flat-bottomed unit with carbon-fibre and Dinamica (that’s Benz talk for microsuede) trim: perfect for sapping sweat as you manhandle the C63 through the bends.

The seats are AMG Performance sports units up front, and the trim used is reserved for this model specifically: Nappa leather with yellow stripes. There are yellow details elsewhere, including on the rear seats, centre console and dash, and it certainly adds some visual excitement.

Media is controlled by a 10.25-inch display and Mercedes-Benz’s touchpad control system, but there is no touchscreen - rendering the Apple CarPlay and Android Auto smartphone mirroring technology somewhat tedious.

I’ve always had a gripe with screens that don’t allow touch but feature the tech that’s designed to transfer your phone’s screen to the media unit, and I can tell you the longer you spend twiddling the dial to get where you want to go, the more annoying it becomes.

The Burmester sound system has 13 speakers and is rather good, but I prefer the sound from the standard fit variable sports exhaust. So maybe that quibble with CarPlay isn’t that big a deal.

And if you just want to charge your phone, and there’s a second USB port up front, as well. Note: in non-Aero Edition C 63 models without the carbon-fibre interior pack, you also get Qi wireless phone charging, but it’s deleted from this variant and any model with the carbon pack.

The driver has a 12.3-inch digital info display to show where you are and what the car is up to, and there’s a head-up display as well. Yep, there’s standard sat nav with live traffic updates (and even live fuel price updates) - it’s just a shame the maps still look early 2000s-spec in 2D layout.

Cargo space is okay. The claimed cargo capacity or boot volume is 355 litres (VDA) with the rear seats in place. That’s small for a coupe of this size, and the shape of the boot (with a hump behind the rear seat) isn’t great as things do move around quite a bit.

But, thankfully, Mercedes has included its clever foldable storage box system under the boot floor - it goes where you might usually expect a spare wheel, but there isn’t one in this car. Instead you get Mercedes’ 'Tirefit' repair kit with an electric pump.

Measuring 4660mm long, 1870mm wide, 1645mm tall and with a 2600mm wheelbase, the NX puts it foot firmly into the mid-size SUV class.

Front occupants can easily get comfortable thanks to seats with a wide breadth of adjustment, while drivers also get a telescoping steering wheel that automatically raises when the car is turned off for easier ingress/egress.

Generous door bins up front will swallow large water bottles and any other paraphernalia, while two deep cupholders are found between the driver and front passengers.

If you want to tuck any items out of sight though, the glovebox and centre console bin will do the job, but there is also a hidden compartment where the driver’s touchpad palm rest.

Lift up the flap and your precious valuables can be hidden away, but look underneath the flap and it doubles as a handheld mirror to check you don’t have any food in your teeth before a date.

The outer two second-row seats offer ample room for six-foot-tall passengers, and – even with the front seats in our preferred position – there is plenty of legroom in the back.

Like most vehicles, the middle seat is a bit compromised, but in the NX it feels especially narrow and uncomfortable.

This isn’t helped by the middle seat’s seat belt, which comes down from the roof and intrudes well into the backrest of the neighbouring seat when not in use.

It makes loading the NX full of passengers tricky as there is a bit of shuffling around to get all the belts in place and passengers comfortable.

Our advice? Use the NX as a four-seater and just fold down the centre armrest, which also exposes two cupholders, for extra comfort.

Other rear seat amenities include air vents and storage pockets in the doors, the latter of which will accommodate water bottles or small items.

Open the boot and the NX will swallow 475 litres of volume, which can expand to 1520L with the rear seats folded down.

Boot space is down on its rivals, with all of the German models offering at least 550L of volume.

In real-world terms, this means the NX’s boot won’t close with a large- and medium-sized suitcase sat side-by-side, but has no problem with smaller cases.

Boot space might be lacking in the NX, but the hybrid system’s batteries have to go somewhere, and at least Lexus offers up two big bag books and tie-down points.

The Lexus NX mid-size SUV range kicks off at $55,700 before on-road costs for the base 300 Luxury 2WD, but our NX 300h F Sport AWD test car carries a $68,700 pricetag.

Of course, the price goes up due to the petrol-electric hybrid engine (more on that below), all-wheel-drive set-up and sporty appointments of the F Sport grade, but the list of standard equipment is sizeable.

From the factory, our test car is fitted with privacy glass, roof rails, auto-dipping and heated side mirrors, 4.2-inch driver display, keyless entry and push-button start, dual-zone climate control, wireless phone charger and powered tailgate as standard.

F Sport grades also score unique 18-inch wheels, a lowered ride-height and sports bodykit, as well as a bespoke leather shift knob, steering wheel with paddle shifters, seats, and interior trim.

Speaking of seats, the front pair are heated and cooled, and also feature electronic adjustment with memory function.

Handling multimedia duties is a 10.3-inch widescreen that outputs to 10 speakers dotted around the cabin., Digital radio, satellite navigation, Bluetooth connectivity, Apple CarPlay/Android Auto support and a DVD player can be found within the multimedia system, which is controlled by a central touchpad or via voice commands.

The only option ticked on our car is the Titanium premium paint. The only standard colour for the NX 300h F Sport is Onyx (black), with all other colour options incurring a $1500 penalty.

Of note, Lexus keeps the sunroof and colour head-up display on the options list.

While the 300h F Sport might be close to the top-end of the NX hierarchy (only cheaper than the Sports Luxury trims), its $68,700 asking price is comparable to base grades of key German rivals, such as the Mercedes-Benz GLC ($67,400) and BMW X3 ($68,900) that are rear-driven and offer less equipment.

Open the shapely bonnet of the C 63 S and you’ll find a hand-assembled horsepower-monster engine with a printed name plaque to prove it.

The 4.0-litre twin-turbo V8 produces 375kW of power at 6250rpm, and 700Nm of torque from 2000-4500rpm. It runs a standard-fit nine-speed 'Speedshift MCT' (multi-clutch transmission) automatic, and it’s rear-wheel drive. And yes, that means it likes to boogie.

The claimed 0-100km/h time is just 3.9 seconds, and top speed is apparently pegged at 250km/h. Yeesh.

The name on the “Handcrafted by” plaque on this particular engine? Hat tip to you, Julian Rembold. This is quite a piece of work. 

Propelling the Lexus NX 300h F Sport is a petrol-electric mild-hybrid powertrain, combining a 114kW/210Nm 2.5-litre naturally aspirated four-cylinder petrol engine with two electric motors – 105kW/270Nm unit for the front axle and a 50kW/139Nm unit for the rear wheels.

The total system output is measured at 147kW, which is sent to all four wheels in our test var via a continuously variable automatic transmission (CVT).

The zero-to-100km/h acceleration takes 9.2 seconds thanks to a fairly hefty 1895kg kerb weight.

High numbers are what AMGs are about. Sadly that’s the case not only for performance outputs but also fuel consumption.

The official combined cycle fuel use claim for the C 63 S Coupe is 10.3 litres per 100 kilometres, and you need to fill it with 98RON premium unleaded fuel, too.

On test? Well, across a mix of different driving - urban, highway, back road and spirited stints - I saw an 'at the pump' return of 12.2L/100km, while the digital readout stated 12.0L/100km.

Given the performance on offer, and how much I took advantage of it during my week with the car, that’s not bad…

Fuel tank capacity is 66 litres. So go easy if you know there won’t be a fuel stop for a while.

Official fuel consumption figures for the Lexus NX 300h is 5.7/ litres per 100km, though we managed a 7.6L/100km figure in our week with the car.

Our driving consisted exclusively of inner-city driving for groceries and just two trips down the freeway upon collecting and returning the car due to Melbourne’s lockdown rules.

Just one word sprang to my mind when it comes to accurately describing the performance on offer from this car. The word is ‘brutal’.

Smash the accelerator and the power and torque on offer is enough to make your eyes feel like they’re not doing the right thing anymore. You get pushed back in your seat with a surge, and your ears are also rewarded with one of the best soundtracks in the automotive world. 

The engine builds pace with enormous intent, and the sound that comes from under the bonnet and out the back through the exhausts is addictive.

Yes, there is an active exhaust button which you have to press to make sure that you hear all that noise if you’re running around in 'Comfort' mode, and during my time with the car it was active the whole time.

I had some questions from neighbours over the week that I had this car about whether it was actually nice to live with on a day-to-day basis. And the answer is yes, if you put it in comfort mode it’s surprisingly amenable. 

The ride is really well sorted at pace despite having a bit of that trademark low-speed wobble that seems to afflict Mercedes products from A-Class through to the GLE SUV. But it wasn’t bad enough to really bother me, as most of my time was on highways and backroads.

The steering is direct and accurate. The only thing you need to be aware of is that you will lose traction at the rear axle when you put your foot down hard. And for the enthusiast that’s exactly what you want. 

I know I want to feel the thing squirm under throttle. It’s a rear-drive V8 coupe, after all. You want to feel like you’re a vein in its bicep muscle; you know, the one you see in a weightlifter’s arms – the one that wiggles around a lot. You want to have that. Right?

On the performance front it is exceptional. Twist the little dial on the wheel to 'Sport' or 'Sport+' (I didn’t sample 'Race' mode as I wasn’t at a racetrack), and everything feels like it’s had a protein shake.

Even so, in that mode it steers brilliantly, there's a nice feel through the wheel, and the ride, while stiff, controls the body brilliantly when you change directions. 

The transmission is very good, too. In Comfort mode it can take just a second or two at first to become accustomed to the idea that you want to drive aggressively.

But in Sport mode, or when you select the manual transmission mode using the trigger button on the steering wheel, you will certainly get the most out of the engine. That’s what I did when I was driving it in a ‘spirited’ manner.

If you are just after that high-end Coupe cruiser experience, it’s a relatively quiet car (provided the surface below isn’t the coarsest of coarse-chip bitumen), with enough luxuriousness to make it feel premium as well as sporty. That’s an important thing to consider, especially at this price point.

Though the Lexus NX might look sporty and dynamic from the outside, don’t be mistaken into thinking Lexus’ mid-size SUV is anything other than a comfy cruiser.

Steering remains light and lifeless in its default ‘Nomal’ drive mode, but even in ‘Sport S’ and ‘Sport S+’, weighting feels artificial and numb.

What this means is that the NX 300h F Sport is a joy to manoeuvre around town at low speeds, but is found lacking when the speedo climbs and the roads get a bit twisty.

Likewise, a stab of the throttle is met with a spike in revs and engine noise as the powertrain switches from its electric motor to internal combustion engine, but the expected thrust-burst never comes.

CVTs are generally tuned for better fuel economy, not a sporting drive, so it makes sense that the NX is a little more hesitant and lethargic to get up to speed, but the transmission does suffer from that ‘elastic’ feel where it can be slow to ‘shift up’ if it thinks you are wanting a sporty drive.

However, these shortcomings are especially evident when stacking it up next to the new Toyota RAV4 hybrid.

The NX is underpinned by Toyota’s MC platform, shared with the old RAV4, whereas the fifth-generation mid-size SUV that launched in 2019 is updated with a TNGA platform.

Much of our aforementioned criticisms in driving dynamics and snoozy drivetrain are fixed, or at least alleviated, in the latest Toyota RAV4, so here’s hoping the next-gen NX rumoured to break cover soon will be a welcomed step forward.

And while the current Lexus NX is certainly not the last world in SUV driving dynamics, it’s not trying to be.

As a daily runabout for the family, the NX is comfortable and predictable – just what some families might be after.

The suspension does a great job at soaking up road imperfections and little bumps you might find on your journey, helped by the comfy seats and great interior sound insulation.

What is noticeable though, is overcoming large bumps or any change in elevation at speed, where the NX 300h’s hefty weight means it takes just a touch longer to get settled again.

The cabin also feels a bit fussy from the driver’s seat, with the multimedia especially being fiddly and hard to navigate when on the move.

We reckon a rotary controller like those found on a BMW, or even better multimedia software as seen with a Benz, could go a long way in fixing Lexus’ multimedia woes.

Having said that, the system is compatible with Android Auto, and is laid out well on the widescreen, so you could easily forgo the annoying touchpad and janky software for a better experience.

All Lexus NX grades carry a maximum five-star ANCAP safety rating, applicable to all variants of introduced from October 2017 onwards.

As the NX was tested on ANCAP’s old standards, it scored 35.39 out of a possible 37, dropping only 1.61 points in the frontal offset test for ‘acceptable’ protection of the driver’s chest and feet, and passenger’s lower legs.

Like all NX models sold in Australia, our car came with the brand’s Safety System+ suite, which includes autonomous emergency braking with pedestrian detection, blind-spot monitoring, rear cross-traffic alert, adaptive cruise control and lane departure warning.

Other safety tech in our F-Sport grade includes hill-start assist, automatic headlights and adaptive highbeams, while eight airbags, seatbelt pretensioners and a tyre pressure warning system are found throughout the local NX line-up.

Mercedes-Benz is among the minority of luxury brands now offering a five-year/unlimited kilometre warranty plan - most still have three-year cover. So that’s a tick.

And the service intervals are pegged at 12 months/20,000km. Another tick.

Plus you can either pre-pay your service plan in three-year ($3800), four-year ($6000) or five-year ($6550) plans - roll it into the finance package, and it won’t hurt quite as much.

According to Mercedes, the three-year coverage option makes for a $900 discount over pay-as-you-go servicing.

Roadside assistance covers the five-year new car warranty period, too. So Mercedes seemingly takes good care of its customers. But if you have any concerns or questions over reliability, problems, issues or complaints about the C 63, check out our AMG C 63 problems page.

Like all new Lexus vehicles, the NX 300h F Sport comes with a four-year/100,000km warranty, along with roadside assist over the same period. A six-year anti-corrosion is also part of the aftersales assurance package.

Scheduled service intervals are every 12 months/15,000km, whichever comes first.

The first three years/45,000km of scheduled servicing is capped at $495 for each annual service, which falls under the brand’s Encore service that also entails pickup and delivery of the NX, loan car, and wash and vacuum.

Lexus ownership also means owners will be access to exclusive events, dinners and drive days, as well as promotions from partner hotels.

Although servicing costs are relatively cheap for the first three years, Lexus’ four-year/100,000km lags behind luxury brand leaders Mercedes-Benz and Genesis, who both offer five-years/unlimited kilometre assurances.