Mercedes-Benz AMG GT vs Lamborghini Aventador

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 Aventador isn't the best car you can buy for the money and truth be told, it isn't the best Lamborghini, which is a bit tough when you remember the only other car they make at the moment is the V10 Huracan. But it's all about the theatre as much as being a very capable supercar. 

I'm not a Lamborghini fanboy, but I completely get the Aventador. It's a because-we-can car, just like the Murcielago, Diablo and Countach before it. But unlike those cars, it's thoroughly modern and with the upgrades introduced to the S, it's faster, harder and enormously entertaining. 

As the last of a dying breed it delivers on everything a Lamborghini should - amazing looks, nutty price tag and an engine that excites not just driver and passenger but anyone with a heartbeat. It's by far the most charismatic car you can buy, no matter how many zeroes are on the cheque.

Photography by Rhys Vanderside

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.

Asking if there's anything interesting about a Lamborghini design is kind of like asking if the sun is warm.

While there are some geese out there in the corners of the internet who think Audi has ruined Lamborghini styling, there is absolutely nothing shy about the Aventador. It's an incredible looking machine and, if I may say so, shouldn't be had in black because you miss a lot of the madder details.

This car is all about the experience.

It might look close to the deck in the photos, but however low you think it is, it's lower. The roofline barely makes it to the bottom of a Mazda CX-5's windows - you need your wits about you in this car because people just don't see you.

It is absolutely spectacular - people stop and point, one chap sprinted an easy 200 metres to take a photo of it in the Sydney CBD. Hello, if you're reading.

Inside is pretty tight indeed. It's amazing to think that a car 4.8 metres long (a Hyundai Santa Fe is 4.7 metres) struggles to contain two people over six feet tall. My six foot two photographer's head left an impression in the headlining. It's a tiny cabin. It's not a bad one though, it even has a cupholder on the rear bulkhead behind the seats.

The centre console is covered in Audi-based switchgear and is all the better for it, even if it is starting to look a bit old (those bits are from a pre-facelift B8 A4). The alloy gearshift paddles are fixed to the column and are brilliant to look at and touch, while the digital dashboard - which changes with the driving mode - is fantastic even if the reversing camera is awful.

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.

Yes, well. There's not a lot of space because a V12 is not just big all on its own, all the ancillaries to support it rob a lot of the remaining space. Having said that, there's room in the front for soft bags with a 180-litre front boot, space for two people inside, a cupholder and a glove box.

And the doors open up into the sky rather than out like a normal car's. Who cares if it's impractical, it's hardly something that's going to stop someone buying one.

As with any Italian supercar, the price-to-feature ratio is rather higher than your average humdrum hatchback. A 'naked' Aventador S starts at a horse-spooking $789,425 and basically has no direct competition. Ferrari's F12 is front-mid engined and any other V12 is either a decidedly different Rolls Royce-type machine or super-expensive niche manufacturer (yes, niche compared to Lamborghini) like Pagani. They're a rare very breed, Lambo knows it, and here we are a sneeze-on-the-spec sheet away from $800,000.

So you have to keep two things in mind when rating a car's value for money at this level. The first is that there isn't any real rival in a pure sense, and if there was, it would be the same price and have the same spec. That's not excusing it, by the way, it's an explanation.

Anyway.

For your eight hundy you get 20-inch front wheels and 21-inch rears, climate control, cruise control, 7.0-inch screen (backed by an older version of Audi's MMI), four-speaker stereo with Bluetooth and USB, car cover, bi-xenon headlights, carbon ceramic brakes, electric seats, windows and mirrors, leather trim, sat nav, keyless entry and start, four-wheel steering, leather trim, digital dashboard, power folding and heated mirrors, active rear wing and active suspension.

The number of out-of-the-box options is staggering and if you're keen to really get on it, you can commission your own options when it comes to trim and paint and wheels. Let's just say that as far as the interior went, our car had almost $29,000 of Alcantara, steering wheel and yellow. The telemetry system, heated seats, some extra branding and front and reversing camera (uh-huh) added up to $24,000, the cameras almost half that total.

With all the bits and bobs, the test car we had was a sobering $910,825 before on-roads.

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 Aventador S is powered by Automobili Lamborghini's 6.5-litre V12. You know it's a V12 because there's a plate on top of the engine (which you can see through the optional glass cover) that says so, and handily, tells you the cylinder firing order. That's a neat touch.

Buried deep in the middle of the car, this monster engine develops an astonishing 544kW (30kW up on the standard Aventador) and 690Nm. Its dry sump means the engine sits lower in the car. The gearbox is slung across the back between the rear wheels - the rear pushrod suspension actually sits on top of and across the gearbox - and is apparently brand new.

The transmission is known as an ISR (Independent Shift Rod) and has seven forward speeds and still just the one clutch. Power goes through all four wheels to the road, but it's clear the rears get the lion's share.

The 0-100km/h time is the same as the standard car, which kind of tells you that 2.9 seconds is about as quick as you can go on road tyres when you don't have four electric motors with torque from zero rpm.

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.

Hilariously, the official figure is 16.9L/100km. I doubled it without trying. Simple as that. If you're buying this car thinking it will be easy on the juice, you're insane.

Cheeringly, Lambo has at least tried, the V12 going silent when you sit at the lights, the best thing being the way it bursts back into life when you lift off the brake.

If you have the time available, it takes 90 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.

In Strada or Street mode, awful. Everything is slow and doughy, particularly the gearshift which goes looking for a gear like dog looking for a stick you didn't throw, but instead hid behind your back. The low-speed ride is nothing less than terrible, fidgeting over every single lump and bump and is only slightly more appealing than being dragged along behind.

The gearbox is really the worst bit about it. Automotive history is littered with cars that laboured along with a single clutch semi-auto: Alfa Romeo 156, BMW's E60 M5 and today the Citroen Cactus is stuck with just such a dud transmission.

Like that old M5, however, there's a trick to making the gearbox work for you - show absolutely no mercy.

Switch the selector up to Sport, get off the highway or major arterial road and head for the hills. Or better still, a clear race track. Then the Aventador goes from a pain in the rear to a glorious, roaring, completely unhinged and unhinging battle cruiser. This car is all about the experience, from the second you lay eyes on it to the moment you put it to bed.

This isn't an everyday supercar and it's absurd to think Lamborghini thinks it is.

First up, there's the obvious entry point with those wacky doors. While it's tricky to get in, if you're under six feet and reasonably mobile, stick your backside in, keep your head down and you're in. If you've been clever, you've specified the glass engine cover so you can see out the back but the huge wing mirrors are surprisingly effective.

Has someone thoughtlessly parked the car in a tight spot? No trouble, the four wheel steer makes the car absurdly manoeuvrable given its extravagant length and width.

As we've already established, it's not much fun at low speeds, waiting until about 70km/h before things start to make a bit more sense. This isn't an everyday supercar and it's absurd to think Lamborghini thinks it is. It just isn't.

The old Aventador was not the most capable of machines but made up for it with its overall belligerence. The new S takes that aggro and dials it up. When you move the drive mode to Sport you are basically unleashing hell. You can pretend to be super-masculine and switch to Corsa (race) mode, but it's all about getting the car straight and getting you around the track in the most efficient way possible. Sport is where it's at if you want to have fun.

The Aventador is about being seen, but not before you've been heard - from two postcodes away. It really is utterly glorious when you have a stretch of road to yourself. The V12 revs furiously to its 8400rpm redline and the wallop of the upshift is accompanied with a fantastic bark and a burst of blue flame. And these aren't the best bits.

Approach a corner, stomp on the colossal carbon ceramic brakes and the exhaust erupts in a combination of bangs and pops and growls that puts a smile on even the most hardened car-hater's face. The fact it steers into corners with just a demure roll of the wrist, aided and abetted by that funky four-wheel steering system. It's just brilliant, addictive and truth be told, it gets under your skin.

The Aventador doesn't have an ANCAP safety rating but the carbon chassis also comes with four airbags, ABS, stability and traction controls.

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.

In an unexpected twist, you'll get a three-year/100,000km warranty and the option to increase to four years ($11,600!) or five years ($22,200!)(!). Having recovered from typing that, given the cost of something going wrong, that's probably money well-spent.