Mercedes-Benz AMG GT vs Ferrari GTC4

What's the difference?

The GT63 4Matic+ is a breathtaking example of everything that Mercedes-Benz and AMG are.

Ferociously fast, incredibly agile and superbly sophisticated, it should be on anybody’s shortlist, if that also includes a Porsche, Aston Martin, Maserati or even a Lamborghini. And it’s definitely much more than yesterday’s SLC ever was – for similar money in today’s terms, as it turns out.

But, around Tasmania’s glorious roads at least, the Mercedes-AMG lacks the ride comfort and road noise isolation to be a fully-rounded-out GT, and that’s a disappointment for a brand with such formidable history in making such cars.

The Ferrari GTC4Lusso is a properly fast, beautifully composed, and supremely luxurious four-seat coupe.

Sadly, evermore stringent emissions regulations have put atmo V12's on the knife edge of extinction, with Ferrari, Lamborghini, Aston Martin and a few others hanging on for grim death.

In fact the twin-turbo V8 Lusso T (powered by the same engine used in the California T and 488) will arrive and be sold alongside this car in Australia later this year.

But we’d like to propose a captive breeding program to keep the big V12s alive because this engine’s soundtrack and the GTC4Lusso’s overall driving experience is magnificent.

This is still clearly a Mercedes AMG GT coupe, like the 2014 C190 original, but a ground-up redesign sees it subtly yet significantly altered.

Some 270kg heavier than before, the larger-in-every-dimension body combines aluminium, steel, magnesium and fibre composite materials for improved rigidity and a lower centre of gravity. Length (4729mm) and wheelbase (2700mm) have been stretched by 177mm and 70mm respectively. Width (1984mm) and height (1352mm) are also up.

The nose treatment is similar to before, especially with the bulgy bonnet and signature vertical slatted grille fitted. These, combined with the LED digital headlight shape effect, is reminiscent of, but far-better executed than, the goofy-looking MG5’s face.

Underneath, it's an all-new platform shared with the SL, with the rear transaxle of the old car replaced by a permanent AWD system, leading from 46:54 front/rear weight distribution to 50:50 as a result.

That aggressive, exaggerated cab-backward/ultra-long bonnet silhouette that visually connected it with the SLS gives way to more-conventional and practical coupe proportions that is striking if not especially original, since they do look quite 911-esque. Along with the longer wheelbase and wider tracks, the result allows for two small rear seats to be fitted, while liftback cargo access remains.

Similarly, in the name of way-more usable interior packaging, Mercedes-AMG says it pushed the driving position nearly 180mm forward compared to the previous GT. Let’s see what that all looks like inside.

Revealed to the world at last year's Geneva motor show, the GTC4Lusso is a substantial evolution of the out-going FF, and follows classic Ferrari GT form, with a glorious, 6.3-litre, naturally aspirated, V12 sitting majestically in its nose.

The car's proportions echo that configuration with a long snout and rear-biased, gently tapered cabin maintaining essentially the same silhouette as the FF. But Ferrari has remodelled the nose and tail; tweaking the aero detailing at the same time.

There's a host of new vents, ducts and louvers contributing to a claimed six per cent improvement in drag coefficient.

For example, the diffuser is a work of aerodynamic art, following a keel shape, with vertical fences channeling air flow towards the centre to reduce drag and increase downforce.

A wide, single-piece grille dominates a smoother front end that moves from upright to a distinct forward lean, with a neat chin spoiler enhancing the racier look.

Larger, triple-blade vents in the front wings add more aggression, and the treatment of the rear side glass and tailgate have been refined and simplified.

Always a subjective call, but we think the restyling work, done in-house by Ferrari Design, has made an already distinctive car even more appealing.

Ferrari says the interior was developed around a 'dual cockpit' concept, to “enhance the shared driving experience”, and the cabin is beautiful.
 
There's a new 10.3-inch colour touchscreen, with the interface for the climate control, sat nav and media all refreshed. It's backed up by a more powerful 1.5Ghz CPU with 2GB of RAM, and it’s much, much better.

'Our' car also boasted the optional ($9500) 8.8-inch ‘Passenger Display’ incorporating performance read-outs, and now, the ability to select music and fiddle with the nav.
 
The attention to design detail and the quality of its execution is breathtaking. Even the slender sunvisors in our test example were hand-stitched leather. And the pedals are drilled alloy. Not alloy covers, or some other faux creation – real aluminium, right down to the passenger footrest pad.

The first impression inside is that of space, despite the falling roofline and coupe-like upsweep of the side windows and you look back. While, again, similar to a 911s, a kink at the door gives the GT a unique character.

Even larger people will appreciate the generous amounts of room up front, with space to stretch, sat in sumptuously comfy bucket seats. Note that the standard ones are better than the racier but firmer Sports versions.

The driving position is perfect, ahead of a dashboard that is very typical modern Mercedes in appearance and layout.

To that end, the tablet-style integrated touchscreen (11.9 inches) is clear, fast and intuitive once time is taken to learn it. And points are also won for the multi-configurable electronic instrumentation, that allows for a variety of screens, including track, classic and minimalist views.

The trademark turbine air vents, the quite beautiful material and trim finishes and just the general solid feel are further typical contemporary Mercedes cabin treatments, as are the excellent ventilation and ample storage options.

And while rear vision isn't great, that's what cameras are for. It's all pretty much on brand.

It is a shame, given how elevated the Mercedes-AMG engineering is underneath, that the GT’s interior look and ambience is so similar to those of a (albeit higher-spec) C-Class or GLE. It's simply not as special as some of the company’s previous sports cars.

More annoyingly, the ride is too firm and bumpy for a GT, and this has the unhappy effect of provoking random rattly trim sounds within the cabin. It’s a bit like scrunched-up cellophane. In a $420K (as tested) Merc, that’s very disappointing, especially as it can be heard over the copious amount of road and tyre noise droning through, particularly on coarser bitumen surfaces.

Further back, the rear seat is strictly two-plus-two, and nobody over 150cm tall is recommended to travel there by Mercedes itself. That sloping roofline is the culprit. That said, brief trips with a bowed head are possible, as the fixed cushions and split-folding backrests are actually surprisingly comfy. But only for short journeys. Kids should love it though, and the second row does open up the GT’s usefulness enormously.

As does a near-doubling of the AMG’s cargo capacity, jumping 146 litres to 321L with backrests erect, to a whopping 675L (+325L) in two-seater mode. The flat floor is accessed via a large electrically-operated liftback door, offering quite a large aperture for easy loading/unloading.

Having no spare wheel helps here, with a tyre inflation kit included in lieu of that.

Meanwhile, at the front, under the bonnet, things have definitely changed for the better as well.

For once we can mention Ferrari and practicality in the same breath because the Lusso offers generous accommodation in the front and rear. Forget '2+2', the back seats are for grown-ups.

With all its drive and dynamic tech on board it's hard to think of a more elegant and capable four-seater for your next trip to the chalet for a cheeky weekend skiing off piste.

In fact, Ferrari says the FF attracted a new, younger batch of owners that make greater use of their cars.

Admittedly, Ferraris don't generally rack up huge kays, but clocking mileage 30 per cent higher than average is significant.

Front seat passengers slip easily into generous and intricately sculpted sports seats, with slim map pockets in the doors and space for bottles, a single large cupholder in the substantial centre console, as well as a lidded storage box (which doubles as a centre armrest) housing 12 volt and USB outlets.

There's also a decent-sized glove box, and a second tray sits further towards the dash to store your black credit cards, Vertu phone(s), and assorted jewellery. Its leather trimmed, double-door closure is reminiscent of the finest Milanese cabinet.

The long, leather-wrapped transmission tunnel continues uninterrupted through to the back, dividing the individual rear bucket seats. A pair of jet fighter style vents sit in the centre, slightly ahead of another two cupholders and a small oddments box containing additional USB ports.

But the big surprise is the amount of head, leg and shoulder room on offer back there. The door aperture is enormous and the front seats quickly tilt and slide forward with the flick of a single handle, so entry and egress is relatively easy.

It's an ultra-comfortable and relaxed place to be, and at 183cm I could sit behind the front seat set to my position with heaps of headroom and three to four centimetres of knee clearance. Finding space for your toes under the front chair is more of a challenge, but an extended journey in the back of the Lusso would be fine.

The only caveat there is the test vehicle’s optional 'Panoramic Glass Roof' ($32,500!), which essentially removes the roof lining, and it would be interesting to sit in a car without it.

Cargo space is real-world useful, with a substantial 450 litres on offer with the rear seats upright, and a full 800 litres available with them folded down.

There’s no spare tyre; a 'can of goo' repair kit being your only option.

At $578,000, the GTC4Lusso is in serious money territory, and as you’d expect, the standard features list is equally imposing.

Highlights include, bi-xenon headlights with LED indicators and daytime running lights, LED tail-lights, 20-inch alloy rims, electric cargo door, front and rear parking sensors plus rear parking camera, cruise control, dual zone climate control air, integrated peripheral anti-theft system (with anti-lift), keyless entry and start, the 10.3-inch touchscreen interface managing 3D navigation, multimedia and vehicle settings, eight-way adjustable electric seats with heating, pneumatic bolsters and lumbar adjustment, plus three memories, carbon ceramic brakes, electric steering column adjustment with memory and ‘easy entry’ function, a tailored car cover and even battery conditioner.

And that’s before you get to the 'usual' stuff like a herd’s worth of leather lining the interior, cranking nine-speaker audio system, electric windows and mirrors, and all the dynamic and safety tech we’ll get to shortly. 

Then, there’s the options list.

There’s a persuasive theory that says once you cross a certain car purchase dollar threshold, let’s say $200k, those options had better be pricey or owners won’t have anything to brag/complain about when introducing their latest acquisition to colleagues in the yacht club car park.

“You know how much that sunroof cost me… just the sunroof? Yep, 32 grand… I know, right!”

By the way, the price of that ‘Low-E’ glass roof will buy you a Subaru XV Premium that Richard tested recently… complete with standard sunroof! 

Short story is ‘our’ car featured $109,580-worth of extras, including the roof, forged rims ($10,600), ‘Scuderia Ferrari’ shields on the fenders ($3100), ‘Hi-Fi premium’ audio ($10,450), and a (must have) front and rear suspension lift system ($11,000).
 
The carbon-rich steering wheel with F1-inspired LED shift lights is a lazy $13k, and the super-cool enamel badge under the lip of the rear spoiler is $1900.

You can point fingers and feign shock at numbers like these, but it all goes to the ultimate personalisation process that is the Ferrari purchase experience; to the point where the factory is now installing a sizeable plaque in each of its cars, listing the options fitted and confirming its original specification for evermore.

There’s a plaque signifying which engineer “handcrafted” the GT’s engine – in this case, the famous M177 in 3982cc, 4.0-litre twin-turbo intercooled V8 petrol guise.

Delivering 430kW of power at 6500rpm and 800Nm of torque from 2500-4500rpm, it sends drive to all four wheels via a nine-speed multi-clutch transmission (dubbed MCT in AMG-speak), catapulting the GT63 4Matic+ from 0-100km/h in just 3.2 seconds, on the way to a top speed of 315km/h.

How does it do that?

With AWD, the GT is now nearly 15 per cent heavier than before, but it still manages a punchy 218kW/tonne. Active aerodynamics over, inside and under a more-rigid body structure also helps.

The AMG 4Matic+ AWD system goes from 50/50 front/rear, to 100 per cent rear, variable torque distribution according to conditions and settings, and backed up by an electronic limited-slip differential. Among the many driving settings are Race Start, Drift Mode and good-old Comfort, if it all becomes too much.

Also keeping all that performance in check is a high-performance composite brake setup with improved cooling for faster responses.

Interlinked active roll bars improve body control, the five-link independent suspension features adaptive dampers for a softer ride.

And, as for that 4WS tech, the rear wheels steer opposite to the fronts at up to 100km/h (by some 2.5 degrees) for tighter and tidier handling, or 0.7 degrees in the same direction above 100, for greater stability and road-holding.

Its effect on the way this near-two-tonne coupe zigs and zags around corners is something you need to experience to really appreciate.

The Lusso is powered by a 6.3-litre, 65-degree, naturally aspirated V12 producing a monumental 507kW (680hp) at 8000rpm and 697Nm at 5750rpm.

It features variable valve timing on the intake and exhaust side, the rev ceiling is a lofty 8250rpm, and revisions from the FF installation include redesigned piston crowns, new anti-knock software, and multi-spark injection, for a four per cent gain in power and two percent rise in maximum torque.
 
Also new for the Lusso is the adoption of six-into-one exhaust manifold with equal length pipes and a new electronic bypass valve.

The Lusso features an insanely rapid-shift, seven-speed 'F1 DCT' dual-clutch transmission, working in parallel with Ferrari’s new and improved '4RM-S' system, which combines all-wheel drive, and now, four-wheel steering to enhance power down and dynamic response.

The drive and steering tech is integrated with Ferrari's fourth-gen side slip control, as well as the 'E-Diff' electronic differential and 'SCM-E' suspension damping syste.

Actually, the GT’s economy isn’t horrendous considering how fast it can go.

Even blasting a few times around beckoning country roads, we managed an indicated 13.0L/100km, which is an improvement on what Mercedes-AMG says the GT averages the 14.6L/100km average that Mercedes-AMG officially states.

That translates to a carbon dioxide emissions rating of 334g/km.

Using 98 RON premium unleaded petrol, an average of just under 480km between refills of the 70L tank is possible. The urban run sees consumption rocket to 21.8L/100km (for just 321km of range), or 10.4 out on the highway run, meaning that over 670km is possible should you decide to drive in a docile manner.

In case you're interested - and if a Lusso is genuinely on your shopping list, you're almost certainly not - claimed fuel consumption is reassuringly voracious.

Ferrari’s claimed figure for the combined (urban/extra urban) cycle is 15.0L/100km, emitting 350g/km of CO2 in the process. And you'll need 91 litres of premium unleaded to fill the tank.

Nobody will drive the GT63 4Matic+ and think, ‘Oh, this is OK’, because its breadth of performance is phenomenal.

No matter which mode you're in, from Comfort through to track-tuned Race, the Mercedes-AMG blends forceful pace and commanding control without ever breaking a sweat.

Flex your right foot and the two-tonne coupe bounds into action like a giant on a mission, striding past posted speed limit signs in nanoseconds and way, way faster than the law will stand if diligence isn’t exercised.

And there’s no point relying on seat-of-your-pants sensations, either, because the chassis below embraces the road with an almost zealous devotion. Which is astounding, given how agile the four-wheel steering-enhanced handling is.

The 63’s super power is exactly that – it dulls your sense of speed. One tester admitted to exceeding 150km/h before noticing. An odd confession considering the sonic boombox that is the bi-turbo V8’s howl.

But jailbait performance is not even the 63’s most lingering joy. That would be its steering perfection, that delivers that rare trifecta of keenness, crispness and communication. The wheel feels eager and alive in your hands, even when powering between tight turns, backed up by sensational grip and control. How can a two-tonne GT handle so sharply?

Warm, dry roads were the order of the day, so we can’t tell you how the 4Matic+ permanent AWD system deals with wet or slippery surfaces, but the slick multi-clutch transmission, seamless torque-vectoring tech and sticky tyres more than cope with the 63’s formidable outputs.

So, that's the gushing part out the way, then.

Despite the adaptive dampers, rigid architecture and exquisitely sophisticated suspension, the ride is simply too stiff in Comfort mode, and downright jittery on some of the Tasmanian roads we tested on, for the 63 to be considered a true luxury grand tourer. It just isn't comfortable, luxurious or supple enough.

Plus, grippy as they are, the 21-inch wheels transmit too much road and tyre noise through to the cabin, meaning that the GT isn't as quiet as you'd hope. Add the aforementioned trim squeaks, and the expected cocooned silence isn’t always there.

The upshot is that the 63 possesses more of a sports car character than a luxury GT character. Great news if you're a 911 type buyer and are seeking a high-performance 2+2 alternative, but a disappointment if comfort and refinement are priorities.

Still, it is impossible not to be deeply moved by this Mercedes-AMG.

Although the big V12's maximum torque doesn’t arrive until close to 6000rpm, 80 per cent of it is available from just 1750, and that means the Lusso is flexible enough to dawdle around town or storm towards the horizon with massive acceleration available via a single twist of the right ankle.

We were able to burble up more than gentle inclines (at reasonable speed), in seventh gear, with the engine more or less ticking over at 2000rpm. In fact, in auto mode, the dual clutch is always keen to march towards its highest ratio.

But if the mood is a little more urgent, despite its substantial, 1.9-tonne kerb weight, (with the help of ‘Performance Launch Control’) this family-friendly force of nature can storm from 0-100km/h in just 3.4 seconds, 0-200km/h in 10.5, and on to a staggering maximum velocity of 335km/h.

From a gruff blare on start-up, through a muscular bellow in the mid-range, to a heart-pounding howl at the top end, pushing the Lusso towards its 8250rpm rev ceiling is a special event… every time.

Channelling all that forward thrust into lateral force is the job of the double wishbone front, multi-link rear suspension, with magnetic dampers and other electronic gee-whizzery in support.

Despite the 4WD system, weight balance is an ideal 47 per cent front, 53 per cent rear, with the 'SS4' torque vectoring set-up distributing torque to the front axle when required even faster than the FF.

The 20-inch Pirelli P Zero rubber grips like a Donald Trump handshake (as do the sports front seats), and the monster brakes - ventilated carbon discs front and rear - are mega.

Even in tight, first gear corners the Lusso turns in quickly and progressively thanks to the four-wheel steering and excellent electric assistance set-up, remains neutral mid-corner and slams its power down on exit.
   
Switch the wheel-mounted Manettino dial from 'Sport' to 'Comfort' and the Lusso settles into an impressively supple mode, deftly soaking up even sharp imperfections.
 
In short, this is a big beast, but point-to-point, it's a fearsomely rapid, surprisingly agile and hugely entertaining drive.

You could easily characterise the Lusso’s entire drivetrain as one big active safety system with the all-wheel drive, four-wheel steering, side slip control and E-Diff keeping even the most determined attempts to overdrive the car under control.

Add in ABS, EBD, 'F1-Trac' traction control, and tyre pressure monitoring system, and it's safety fast all the way. But a big black mark has to sit next to the lack of AEB. 

If you do manage to overcome all of that and engage in a crash, there front and side airbags for the driver and front seat passenger, but no curtains front or rear. Sadly, not good enough for a car in this performance and price bracket. There are ISOFIX child restraint location anchors in each of the rear seat positions though.

The GTC4Lusso has not been tested by ANCAP.

What’s the GT like to own?

Mercedes-Benz offers a five-year/unlimited km warranty, with five years of roadside assistance. This is average for most mainstream and luxury brands, but superior to most sports-car makers like Porsche and Lamborghini.

Intervals are every 12 months or 20,000km, and while no capped-priced servicing is offered on the GT, pre-paid three-, four- or five-year service plans are available, ranging from $5165, $7700 and $8665 respectively.

Big performance demands big maintenance bills, it seems.

Ferrari offers a three year/unlimited km warranty, the latter part of that equation being somewhat hilarious because most Ferraris don't travel very far… ever.

Service is recommended every 12 months or 20,000km, and the seven year 'Genuine Maintenance' program covers scheduled servicing and labour along with genuine parts, oil and brake fluid for the original owner (and subsequent owners) for the first seven years of the car's life. Brilliant.