Mercedes-Benz AMG GT vs Ferrari 812

What's the difference?

This is no Lotus, but damn if it ain't a hell of a good time, and proof positive that electrification can enhance the V8 experience, rather than ruin it.

Clearly, this is not a car for everyone, and you’d have to question whether it’s a car for anyone, really, but people who like spending $610,000 on Ferraris, and waiting in a queue to do so, will be delighted, because it delivers the kind of exclusivity, and bragging rights, that you’d have to hope a car called Superfast would.

Personally, it’s a little too much, a little too over the top and definitely too mad, but if rockets are your thing, you won’t be disappointed.

It's a mean, but somehow still sleek, looking beast, this big AMG, but it's also immediately recognisable as a thing of intent.

Up front, there's the huge vertical-slat grille that looks like it drove straight out of a Stephen King novel, a massively domed bonnet, and these vacuum-like side intakes that look like they could suck in stray animals.

Then, at the back, there are twin dual-pipe exits (for four in total), and an automatic wing that pops out of the rear bodywork. And all of that's capped off with these massive 21-inch forged alloy wheels hiding golden ceramic-composite brakes.

Mean, yes, but not quite as aggressive as you might expect the most powerful AMG to date to come across, perhaps.

Inside, it's more subdued again, with the AMG presenting a pretty passenger-friendly space, with all the Benz tech you'd imagine, including the massive screens, and — thanks to its air suspension and drive modes — the ability to tailor the ride to your liking, meaning a comfortable and premium experience, despite the power under your right foot.

It’s very… big, isn’t it? And it looks even bigger in the flesh with a bonnet you could use to put a roof over your tennis court. In all, the Superfast is 4.6m long, almost 2.0m wide and weighs 1.5 tonnes, so it certainly has presence.

Making something this big look good is a challenge even for those as talented as Ferrari’s design team, but they have nailed it. The front has what appears to be a mouth, poised to swallow lesser cars whole like some whale shark Terminator. 

The bonnet appears to be flaring its nostrils, and looks fabulous from the driver’s seat, and the swooping side and taut rear complete things nicely.

Personally, it still just looks too big to be a Ferrari, but then this is not a mid-engined super car, it’s a grand touring rocket ship, and the ultimate expression of unnecessary excess, and it pulls off that aura perfectly.

It's not overly practical, given its size, with AMG locking in a four-seat configuration with a fixed rear pew that limits boot space. You can get folding seats, but only as part of an option package.

What you're left with is a vehicle that stretches 5054mm in length, 1953mm in width and 1447mm in height, but that serves up rear seating for only two – albeit very comfortably – and, because of the electric battery and motor being housed at the rear, boot space of just 335 litres.

There is triple-zone climate control, and the rear seating is lounge-like and luxurious, while the up-front space is ample for two full-size riders, too.

There's no spare, with AMG's 'Tirefit' puncture repair system on board.

Practicality isn’t really your concern when you buy a two-seat mega car like this, so let’s just say it’s about as practical as you would expect it to be. Not very, then.

Is it possible that any car - save one made from gold, dusted with diamonds and stuffed with truffles - would represent good value at a price of $610,000? It seems unlikely, but then people who can spend that much assay value differently, and would probably say that something as profound as the 812 Superfast is worth buying at any price.

Another way to look at it is price-per-litre, which is less than $100,000, considering you do get 6.5 litres of V12 Ferrari donk. Or you could go by kilowatt, which works out at nearly $1000 each for your 588kW.

Other than that you do get a lot of leather, a high-quality interior, superior exterior styling, badge-snob value that’s hard to put a price on and vast swathes of F1-derived technology. And a free car cover.

It's not just what's under the bonnet, but what's at the rear axle, too.

But let's start at the front, shall we? Here, a familiar twin-turbo V8 engine lurks, producing a potent 470kW and 900Nm, which is fed through a nine-speed automatic, complete with paddle shifters and several drive modes, including the traction-limiting 'Race'.

But that is then joined at the rear by an electric motor with its own two-speed transmission, and which produces 70kW and 320Nm – or up to 150kW for 10-second blasts under heavy acceleration.

Combine both, and you're tapping into around 620kW and in excess of 1000Nm, enabling a sprint to 100km/h in just 2.9 seconds, and a flying top speed of 316km/h.

I did want to give the epic, enormous 6.5-litre naturally aspirated V12 engine a perfect 10 here, but when I paused to think about it I had to admit that it is, quite possibly, a little too powerful.

Yes, it is amazing to think Ferrari can build a car that has 588kW (800 horsepower - hence the 812 nomenclature; 800 horses and 12 cylinders) and doesn’t just dig itself a hole in the road as soon as you put your foot down.

And yes, it does provide the kind of performance that makes all other cars seems a bit piss poor and pathetic, even the really good ones. 

But honestly, who could ever use it all, or need it all? They might seem like irrelevant questions, I guess, because it’s all about conspicuous over-excess, a car like this, so really the question is, would anyone want to live with 588kW and 718Nm of torque, or is it just too scary in reality?

Well, a little bit, yes, but Ferrari’s engineers have been wise enough not to actually give you all of that power, all the time. Torque is limited in the first three gears, and maximum mental power is actually only available, in theory, at 8500rpm in seventh gear, at which point you’d be approaching its top speed of 340km/h.

The fact that you can rev an engine this big, and this lusciously loud, all the way to 8500rpm is, however, a joy that would never tire.

In more practical terms, you can run 0-100km/h in 2.9 seconds (although cheaper, less crazy cars can do that, too) or 200km/h in 7.9 (which is a tiny bit slower than the far lighter McLaren 720S).

What you can’t do, of course, is achieve any of those numbers on winter tyres, or roads with snow on them.

Fuel efficiency is surprisingly impressive for a vehicle this big and powerful, with Mercedes claiming 7.7L/100km and 175g/km of CO2 on the combined cycle.

Helping that is a the 6.1kW battery, which delivers just 12km in all-electric driving range, but helps reduce overall fuel use.

This AMG is AC power only, meaning you can't recharge using fast chargers, but the brand says its secret trick is its ability to recharge itself using captured kinetic energy incredibly quickly – largely negating the need to plug in unless you want to unlock that EV range – with Merc suggesting that, on a race track for example, the battery will discharge and charge itself continuously as you're lapping.

Much as you can’t have a good volcano without some serious lava, you can’t have 800 horsepower without burning a lot of dead dinosaur goo. The Superfast has a claimed fuel-economy figure of 14.9L/100km, but on our drive the screen just said "Ha!" and we burned through a whole tank of fuel in less than 300km. 
Theoretical emissions are 340g/km of CO2.

There's a lot of big numbers surrounding the Mercedes-AMG GT63S E Performance, but let me throw another one at you – 245km/h.

That was the high score I saw pop up on its digital speedo as the big and electrified Mercedes flew down the main straight at Sydney Motorsport Park (formerly Eastern Creek), before my courage ran out and my foot found the brake.

That kind of velocity is mind-bending in a vehicle this big, and so is the way that power is delivered, with the AMG's big brain deciding how and when to maximise power from the engine and electric motor to deliver a constant surge of torque that shoves you back, and the GT63S E Performance into the future.

But big acceleration is hardly surprising with that much power. What is a little more impressive is how easy this four-door supercar is to wrestle around a racetrack.

Sure, the feeling-out process is a little more involved, as you figure out how and when you'll feel the weight shifting, and as your brain struggles to compute how what's happening is even possible, but after a couple of laps the AMG settles into an easy, flowing rhythm that, while never feeling light on its feet, also doesn't feels like you're piloting a bus.

At least part of that is down to the wizardry on board, like the 'AMG Air Suspension', the rear-axle steering and the limited-slip diff, all of which combine to make the GT63S feel tighter and sharper than it would otherwise.

But it's also partly down to the prodigious power on offer – perfect corner entry and exits are less relevant when you have a cruise missile strapped to your right foot that doesn't just quickly make up for any driver errors, but shrinks the space between corners to the blink of an eye.

Yes, it's heavy, and there isn't much that's pure about the go-fast experience, but it left an ear-to-ear grin on my face, and isn't that priority one for any new AMG?

How does it drive on the road? That I don't know, as this was a track-only drive day. But we will get one on a proper test soon and let you know.

Insane. It’s a word that people often lift from their lexicon when describing a supercar experience, because clearly, as forms of transport, things like Ferraris and Lamborghinis are not sane options.

But the Superfast really deserves the word, because it feels not only the opposite of sane, but truly bonkers. As if someone built it for a dare, realised it was a bad and possibly dangerous idea, and then put it on sale anyway.

Picture some tiny-handed child with his greasy, post-cheeseburger fingers poised over a big red button on his desk that could wipe out humanity, and that’s basically the situation your right leg finds itself in when driving the Superfast.

There is so much power on tap here - even the limited amount of it that the engineers allow you to access in lower gears - that it truly seems possible you’ll have a Road Runner moment, and simply dig a hole in the ground, if you push the throttle too hard.

Yes, on the one hand, the noises this extreme V12 makes above 5000rpm are memorable and moving, like Satan himself singing Nessun Dorma in a shower of sparks. At one stage we found a long tunnel, perhaps the only dry road within 500km that day, and my colleague forgot all about his licence and let rip.

The numbers on my 'Passenger Screen' spun like poker-machine wheels, then turned red and then implausible. I was shoved back into my seat as if by Thor himself, and I squealed like a small pig, but my co-driver heard nothing over the Monaco tunnel during F1 sound.

Even on dry road, of course, the winter tyres we were forced (by law) to run in the foul snowy conditions could not maintain grip, and we constantly felt the rear skipping sideways. Fortunately we were in Italy, so people simply cheered us on.

The likelihood that you will lose traction in this car is so high that the boffins have included a special feature in its new 'Electronic Power Steering' system called 'Ferrari Power Oversteer'. When you inevitably start going sideways, the steering wheel will apply subtle torque to your hands, 'suggesting' the best way to get the car back in a straight line.

A proud engineer told me that this is basically like having a Ferrari test driver in the car with you, telling you what to do, and that they used their skills to calibrate the system. You can override it, of course, but it sounds scarily like an autonomous-driving precursor to me.

What’s disappointing about this car having EPS at all, rather than a traditional hydraulic system, is that it just doesn’t feel muscular enough for a hairy-handed monster of a car like this.

It is accurate and precise and pointy, of course, and makes driving the Superfast, even in stupidly slippery conditions, almost easy. Almost.

It’s actually surprising how hard you can push a car like this along a windy and wet mountain road without careering off into a muddy field.

More time, and more traction, would have been appreciated, but you can tell it’s the sort of car you’d grow into, and perhaps even feel in control of, after a decade or so together.

So it’s good, yes, and very fast, obviously, but I can’t get past the idea that it’s all a bit unnecessary, and that a 488 GTB is simply, in every single way, a better car.

But as a statement, or a collector’s item, the Ferrari 812 Superfast certainly is one for the history books.

It might not surprise you to hear that, unlike every other company’s press kits, the Ferrari ones don’t generally include a section on 'safety'. Perhaps because driving something this powerful is inherently unsafe, or possibly because they believe their 'E-Diff 3', 'SCM -E' (magnetorheological suspension control with dual-coil system), 'F1-Traction Control', ESC and so forth will keep you on the road no matter what. 

If you do fly off, you’ll have four airbags, and a nose as big as a house forming a crumple zone, to protect you.

The GT63S E Performance is covered by Mercedes' five-year, unlimited-kilometre warranty, and you can pre-pay your service costs to keep the prices down.

Service pricing for the electrified model is yet to be confirmed.

Once you’ve paid the vast cost of entry, it’s nice to know you will get some stuff for free, like your first seven years of servicing, including all parts and labour, carried out by trained Ferrari technicians, who even dress like pit crew. It’s called 'Genuine Maintenance', and is genuinely Kia-challenging in its scope.