Mercedes-Benz AMG GT vs Ferrari 488

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 488 Spider is a brilliant machine. It's properly supercar fast, in a straight line and around corners. It looks stunning, and attention to design detail, engineering refinement and overall quality oozes from its every pore.

Is it the best car I’ve ever driven? Close, but not quite. Others may disagree, but for what it’s worth, I think the Ferrari 458 Italia, in all its high-revving, naturally aspirated glory is still the sweetest ride of all.

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.

Launched in 2015, the 488 is the fourth mid-engine V8 Ferrari based on the aluminium space-frame architecture unveiled with the 360 Modena back in 1999, and unlike its Pininfarina-penned predecessors, was designed in-house at the Ferrari Styling Centre, under the direction of Flavio Manzoni.

The key focus this time around was aero performance, including the additional breathing and cooling needs of the 488’s 3.9-litre twin-turbo V8 (relative to the 458’s 4.5-litre naturally aspirated unit); hence the car’s most obvious visual identifiers - substantial air intakes in each flank.

Measuring 4568mm nose-to-tail, and 1952mm across, the 488 Spider is marginally longer (+41mm) and wider (+15mm) than its 458 equivalent. That said, it’s exactly the same height at just 1211mm tall, and the 2650mm wheelbase is unchanged.

Ferrari is a past master when it comes to sneaky concealment of spectacular aero trickery, and the 488 Spider is no exception.

Inside, the design is all about simplicity and focus for the person with the steering wheel in their hands.

Upper elements of its F1-inspired double front spoiler direct air to the two radiators, while the larger lower section subtly pulls flow under the car where carefully tuned ‘vortex generators’ and a yawning rear diffuser (incorporating computer-controlled, variable flaps) dial up downforce without a significant drag penalty.

The ‘blown’ rear spoiler manages air from intakes at the base of the rear screen, its specific geometry allowing a more pronounced (concave) profile for the main surface to increase upward deflection and maximise downforce without the need for an oversize or raised wing.

Those side intakes are divided by a central, horizontal flap, with air from the upper section directed to exits over the tail, pushing the low-pressure wake directly behind the car further back to again reduce drag. Air flowing into the lower section is sent to the turbo engine’s air-to-air intercoolers to optimise intake charge. All brilliantly efficient and tastefully incognito.

Putting the engine in the centre of the car and fitting only two seats doesn’t just pay off dynamically, it delivers the perfect platform for visual balance, and Ferrari has done a superb job of evolving its ‘junior supercar’ with a nod to the line’s heritage and an eye on extending its reach.

The tension across its multiple curved and contoured surfaces is beautifully managed, and the Spider’s crouching stance screams power and single-minded purpose.

Inside, while the passenger might be enjoying the ride, the design is all about simplicity and focus for the person with the steering wheel in their hands. 

To that end, the slightly angular wheel houses a host of controls and displays including a very red start button, driving mode ‘Manettino’ dial, within-thumb’s-reach buttons for indicators, lights, wipers and ‘bumpy road’ (more on that later), as well as sequential max rpm warning lights across the top of the rim.

The steering wheel, dash, doors and console are (optionally) carbon-rich, with the familiar buttons for Auto, Reverse and Launch Control, now housed in a dramatic arching structure between the seats.

The compact instrument binnacle is dominated by a central rev-counter with digital speedo inside it. Readout screens for on-board info across audio, nav, vehicle settings, and other functions sit either side. The seats are grippy, lightweight, hand-crafted works of art, and the overall feeling inside the cockpit is an amazing mix of cool functionality and special event anticipation.

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.

Okay, so how do you approach practicality in a car that’s so obviously not engaged with the concept?

Best to say there’s cursory consideration in terms of cabin storage, with a modest glovebox, small pockets in the doors, and a pair of piccolo-sized cupholders in the console. There’s also a net and some general oddments space along the bulkhead behind the seats. 

But the saving grace is a generous, rectangular boot in the nose, offering 230 litres of easy-to-access load space.

Another attribute fitting broadly under the heading of practicality is the retractable hardtop which smoothly unfolds/retracts in just 14 seconds and operates at speeds up to 40km/h.

Let’s get the big number out of the way. The Ferrari 488 Spider costs $526,888 before on-road costs.

Included in that not inconsequential figure is the ‘E-Diff3’ electronically-controlled differential, ‘F1-Trac’ traction control, ASR & CST, ABS, an anti-theft system, carbon-ceramic brakes, Magnaride shock absorbers, dual-zone climate control, racy leather seats, bi-xenon headlights with LED running lights and indicators, keyless start, Harman multimedia (including 12-speaker, 1280-watt JBL audio), 20-inch alloy rims, tyre pressure and temperature monitoring, and… a car cover.

But that’s just the starting point. Any self-respecting Ferrari owner will need to put a personal stamp on their new toy and the prancing horse is happy to oblige.

If you want an exterior colour to match your favourite polo pony’s eyes, no problem, the Ferrari Tailor-Made program will do whatever it takes. But even the standard options list (if that makes sense) offers more than enough scope to make an already spectacular four-wheel statement even more distinctive.

Our test car featured six new Mazda3’s worth of extras. That’s just under $130k, with the highlights being more than 25 grand in exterior carbon-fibre, $22k for the special, two layer, iridescent effect ‘Blue Corsa’ paint, over $10k for chrome painted forged rims, and $6790 for Apple CarPlay (standard on the Hyundai Accent).

But you’ve got to remember an inverse logic applies here. While some may see $3000 for cavallino rampante shields on the front wings as somewhat pricey, to a proud Ferrari owner they’re badges of honour. In the yacht club carpark, showing off their latest acquisition, you can script the satisfied boast - ‘That’s right. Two grand. Just for the floor mats!’

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 488 Spider is powered by an all-alloy, mid-mounted 3.9-litre, twin-turbo V8, featuring variable valve timing and dry sump lubrication. Claimed outputs are 492kW at 80000rpm and 760Nm at a usefully low 3000rpm. Transmission is a seven-speed 'F1' dual clutch driving the rear wheels only.

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.

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.

We had the rare opportunity of driving the 488 Spider on road and track with Ferrari Australasia handing us the keys for a rural run from Sydney to Bathurst, followed by some private bonding time on the roads around town, then a batch of unrestricted hot laps on the Mount Panorama circuit in the lead up to this year’s 12 Hour race (which the scuderia won in emphatic style with the 488 GT3).

On the freeway, cruising at 110km/h with roof open, the 488 Spider is civilised and comfortable. In fact, Ferrari claims normal conversation at speeds over 200km/h isn’t a problem. Top tip (no pun intended) is to keep the side glass and small electric rear window raised to minimise turbulence. With the roof up, the 488 Spider is every bit as quiet and refined at the fixed roof GTB.

The 458 Italia atmo V8’s rising fortissimo howl is one of the world’s greatest mechanical symphonies.

Even with the multi-mode Manettino in its regular ‘Sport’ setting and the seven-speed ‘F1’ dual-clutch gearbox in auto, all it takes is a gentle crank of the right ankle to despatch pesky road users with the temerity to impede the 488’s progress.

On the quiet, open and twisting roads around the outskirts of Bathurst we may have flicked the switch to ‘Race’, slipped the gearbox into manual and given the 488 Spider a nudge. In some sweeping corners on Mount Panorama we might have even tested Einstein’s theory that matter bends the fabric of space and time. In short, we were able to get a good feel for the car’s dynamic abilities, and they are monumental.

Relative to the 458, power is up a lazy 17 per cent (492 v 418kW), and turbo-fed torque leaps a staggering 41 per cent (760 v 540Nm), while kerb weight is trimmed by 10kg (1525 v 1535kg).

The result is 0-100km/h in 3.0 seconds (-0.4sec), 0-400m in 10.5 (-0.9sec), and a maximum velocity of 325km/h (+5km/h).

If you must know, given fuel efficiency and emissions performance was the key driver behind Ferrari’s move to a turbo powerplant, all this is balanced by claimed 11.4L/100km combined economy (down from 11.8 for the 458).

A full blown launch in this car is like lighting the wick on an Atlas rocket, with a seemingly never-ending surge of thrust pinning your back to the seat, and each pull of the column-mounted carbon gear paddle delivering a seamless and near instantaneous shift. Ferrari claims the 488’seven-speed ‘box shifts up 30 per cent quicker, and down 40 per cent faster than the 458’s.

The lofty summit of the twin turbo’s torque mountain arrives at just 3000rpm, and once you’re up there it’s a table top rather than a peak, with more than 700Nm still on call at close to 7000rpm.

Maximum power arrives at 8000 (perilously close to the V8’s 8200rpm rev ceiling), and the delivery of all this brute force is impressively refined and linear. To improve throttle response, the compact turbos incorporate ball-bearing-mounted shafts (rather than the more common sleeve bearing type), while the compressor wheels are made from TiAl, a low-density titanium-aluminium alloy. As a result, turbo lag simply isn’t in the 488’s vocabulary.

And what about the sound? On its way to 9000rpm the 458 Italia atmo V8’s rising fortissimo howl is one of the world’s greatest mechanical symphonies.

Maranello’s exhaust engineers allegedly spent years fine-tuning the 488’s aural output, developing equal length tubes in the manifold to optimise harmonics before gas flow reaches the turbos, to get as close as possible to the high-pitch wail of a naturally aspirated Ferrari V8. 

All we can say is the 488’s sound is amazing, immediately turning heads on contact... but it ain’t no 458.

Using the 488 Spider’s incredible dynamic ability to translate forward momentum into lateral g’s is one of life great pleasures.

Supporting the double wishbone front and multi-link rear suspension set-up is a host of high-tech widgets including the tricky E-Diff3, F1-Trac (stability control), High-Performance ABS with Ferrari Pre-Fill, FrS SCM-E (magnetorheological shock absorbers), and SSC (side-slip control).

Combine that with the active aero quietly turning the car into a four-wheel suction cup, plus ultra-high performance Pirelli P Zero rubber, and you have amazing grip (the front end especially, is incredible), perfect balance and stunning corner speed.

Our Mount Panorama blat confirmed the 488 Spider remains poised and throttle steerable through corners and curves at ludicrous speeds.

Chasing gears into the top of the ‘box up mountain straight made the lights on the upper rim of the steering wheel look like a fireworks display. The Spider transmitted its every move across the top of the circuit through the lightweight seat, and the very fast blast into The Chase at the bottom of Conrod Straight was other-worldly. Set the car up on entry, keep squeezing the throttle, grease in just a fraction of steering lock, and it just blazes through like a high-speed hovercraft, at 250km/h-plus.

More time back outside Bathurst confirms feel from the electro-hydraulic rack and pinion steering is brilliant in the real world, although we did notice the column and wheel shaking in our hands over bumpy backroads.

The quick fix there is a flick of the ‘bumpy road’ button on the steering wheel. First seen on the 430 Scuderia (after then Ferrari F1 hero Michael Schumacher pushed for its development), the system de-links the shock absorbers from the Manettino setting, providing extra suspension compliance without sacrificing engine and transmission response. Brilliant.

Stopping power comes courtesy of a ‘Brembo Extreme Design’ system derived from the LaFerrari hypercar, which means standard carbon-ceramic rotors (398mm front, 360mm rear) clamped by massive calipers - six piston front, four piston rear (our car’s were black, for $2700, thank you). After multiple stops from warp speed to walking pace on the circuit they remained firm, progressive, and hugely effective.

In terms of active safety the various driver aids mentioned above do their part to avoid a crash, and if the worst comes to worst dual front and side airbags are in place.

The 488 Spider has not been rated for safety performance 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.

The Ferrari 488 Spider is covered by a three year/unlimited km warranty, and purchase of any new Ferrari via the authorized Australian dealer network includes complimentary scheduled maintenance, through the ‘Ferrari Genuine Maintenance’ program for the first seven years of the vehicle’s life.

Recommended maintenance intervals are 20,000km or 12 months (the latter with no km restrictions).

Genuine Maintenance attaches to the individual vehicle, and extends to any subsequent owner within the seven years. It covers labour, original parts, engine oil and brake fluid.