Maserati Granturismo vs Porsche Cayenne

What's the difference?

There’s a famous line in a Hollywood movie that somebody’s ego is writing cheques their body can’t cash.

In the GranTurismo’s case, its agility, performance, ride, handling and overall refinement means it absolutely delivers on the promise of the stunning styling.

Of course, this review is a first taster only, even if it is on one of the most challenging race circuits we know. And, as such, we cannot wait to finally drive the GranTurismo outside on Australian public roads.

Which, by the way, will be all the more beautiful because of it.

Of all the super SUVs I've piloted, the Porsche Cayenne Turbo GT is the best all-rounder in terms of performance, comfort, cabin technology and style.

As a family car it's roomy, practical and easy to use and drive daily.

As a performance car the Turbo GT is stupidly quick, with the agility of a sports car. Sure, a 911 would leave it behind on a twisty race track, but this SUV is close to having that sportscar experience and keeping your family, as well.

With a long bonnet and centralised, cab-backward silhouette, the new GranTurismo is built on a highly-modified version of the Stellantis Group’s Giorgio platform, which debuted with the BMW 3 Series-sized Alfa Romeo Giulia sedan back in 2016 and also underpins the Stelvio SUV. 

In this application, it has been redesigned as a modular architecture to accommodate, among other things, electrification. The resulting Folgore (Lightning) electric vehicle version will arrive in Australia during 2025.

Compared to before, the design is all-new, with a body that is slightly longer and wider than before; it features over 65 per cent aluminium, weight distribution is 52/48 per cent up front/rear, and the aerodynamics are honed to maximise efficiency, especially for the Folgore. The latter’s drag coefficiency of 0.26 – 0.02 better than the Modena/Trofeo.

Here are the key dimensions: 4959mm long (+78mm), 1957mm wide (+42mm), 1353mm tall (same as before) and 2929mm wheelbase (-20mm).

Maserati claims it invented the grand tourer with its post-war A6 1500 coupe of 1947. Since then, a variety of timeless designs have been released, with beauty always being the priority… and the GranTurismo nails it.

This might be a personal thing but to me nearly all Porsches look better from the back than the front.

It's the wide stance and powerful haunches, the hunkered down suction-capped-to-the-road look that does it for me and the Cayenne Turbo GT, despite being an SUV, passes this important Porsche checklist item.

The GT aero kit only serves to make this SUV look more of a beast, and the gold-bronze looking satin Neodyne wheels are a Porsche theme that I've not always been a fan of, but I get the historic connection.

If only the Turbo GT could look a little less like other Cayennes from the front. This is the king of the SUV range and despite the apron and bumper already being exclusive to this model, there should be more.

Vents in the wheel arches, carbon bonnet with nostrils GT3-style perhaps? Or is that going too far? If you do want something more lairy then there's always the Urus.

The Cayenne Turbo GT's cabin is stunning in its plushness and modern surprises such as the passenger display, the hoodless instrument digital cluster, the lashings of Race-Tex upholstery everywhere. It's perfectly Porsche. High-performance meets high-end.

It's also highly practical. Let's talk about that.

Long, low and wide. These are prerequisite proportions for a traditional grand touring 2+2 coupe, and with them come traditional packaging compromises.

With a near 3.0-metre wheelbase, there’s tonnes of room for legs, shoulders and even heads if you’re willing to sit nice and low, though the lush ambience is more cosy than coastal because of the accompanying broad centre console.

The dual central screens look like an open tablet, and it’s perfectly sized and easy to use. Same goes for much of the controls, while the driving position is, thankfully, first class. Just like the fit and finish.

Beating Mitsubishi’s TR Magna to the punch by decades, there’s an analogue clock perched above the centre vent outlets, which is digitalised and contains performance telemetry as per Porsche’s equivalent.

Vision is a little limited by the fat pillars and upswept window line but the big screens help. Storage is okay, and access to the rear is only for the very young, very fit or very limber.

Two more seats out back provide snug comfort, but the GranTurismo really is all about the ones up front. Overall, the cabin design’s restrained modernity matches the exterior’s styling philosophy down to a tee.

Further back, the boot lid opens electrically because why not, revealing 310 litres of cargo space. The rear seat doesn’t fold, but there is a ski-hatch into the cabin for broomsticks and some such.

Speaking of flying high, let’s take a look at the other side of the GranTurismo.

The Porsche Cayenne Turbo GT only makes one compromise on practicality and that's the removal of the middle seat in the back, which, with just two kids isn't used all the time but on average we might need it once a week for school mates and cousins.

Instead of a middle seat there is a shallow tray, which will fit a phone or in our case leaves and rocks found at the park.

So, yes, the Turbo GT is a four-seater only, but this is a spacious, large SUV with good head and legroom, wide-opening doors for easy entry and exit, and air suspension which can raise and lower the height for easy access.

Storage is excellent with enormous door pockets in the front and back and there are four cupholders.

There's a wireless phone charger in the front and two USB-C ports as well, plus two USB-C sockets in the back.

Four-zone climate control means the kids in the back can set their own temperatures. They also have heated seats.

I was disappointed to see there aren't sunshades for the rear windows - pretty vital in Australia where it feels like we're only about 50 metres away from the sun.

The Turbo GT's 576-litre boot just managed to fit our pram and a week's shopping, which is our minimum standard for living. Any more space is a bonus.

The Turbo GT is the king of Cayennes, so it shouldn't surprise anybody that it's also the most expensive with its list price of $364,700.

Lamborghini's Urus lists for $409,744  and is the Cayenne Turbo GT's not-so-subtle Italian cousin, sharing the same platform and engine.

Both are in my mind the best performance SUVs on the planet. It just depends how conspicuous you want to be.

Then there's Bentley's V8 Bentayga which isn't blessed with the Porsche's good looks but would still be all over the Cayenne if the two happened to meet at a race track.

So, why is the GT Turbo the king of the Cayennes? What makes it better? For all the reasons you'd think - it's the fastest, most powerful, most luxurious and most equipped Cayenne in the range.

We'll get into mind-bending engine and performance specs soon, but first let me take you through the standard features on a car that's anything but standard.

Coming standard and exclusively to the Turbo GT are 22-inch 'GT Design' wheels in satin 'Neodyne' with full-colour Porsche centre caps, an active rear spoiler, Turbo GT front apron, dual titanium exhaust, rear apron with diffuser, 'SportDesign' side skirts, wheel arch extensions, a lightweight carbon roof and tinted LED HD-matrix headlights.

Inside, and also exclusive to this grade, is the 'GT Interior Package' with 'Race-Tex' upholstery throughout with 'Deep Sea Blue' stitching on the front seats and centre console and the armrests and dashboard.

There's also the 'Carbon Interior Package' which includes dashboard and door trim elements.

Race-Tex trim is applied to the 'GT Sports' steering wheel, roof lining and gearshift, too.

The adaptive active air suspension, which can lower the car by 15mm, is standard and only available on the Turbo GT, too.

The soft-close doors are standard (a cost option on lower grades), as are the stainless steel pedal covers.

The rest of the features are also found on lower grades and include the 12.65-inch digital instrument cluster, head-up display, proximity unlocking, 12.3-inch multimedia touchscreen with sat nav, wireless Apple CarPlay and Android Auto, digital radio, a 10-speaker Bose sound system, heated front seats, rear privacy glass and an auto tailgate.

Four-zone climate control is standard on the GT Turbo, too, and so are heated rear seats.

Our car had several options fitted such as the front passenger display ($2860) and the Deep Sea Blue Accent Package.

The passenger display is a crowd pleaser, but as a family car my kids felt like they were missing screens in the back seats, too. Well, in my day...

So, no more Ferrari-sourced V8, eh?

Yet, it’s not just a sexy body that Maserati has mastered, because this particular 2992cc 3.0L twin-turbo V6 is pretty-much exactly the same engine as you’ll find in the company’s MC20 supercar, give or take a bunch of outputs.

Called the Nettuno, it isn’t quite in the performance league of the GT’s mid-engined two-seater sibling, but with 365kW of power and 600Nm of torque in the Modena and 45kW/50Nm more in the Trofeo, it’s a spine-tingling symphony of speed and total jailbait… especially given the latter’s 320km/h maximum velocity.

That’s 18km/h quicker than the standard tune, and the Trofeo also shaves 0.4 seconds off the 0-100km/h sprint time at just 3.5s flat.

Either engine, though, feels terrifically quick and smooth and no doubt that’s aided by what must be one of the world’s greatest automatic transmissions in the eight-speed ZF unit. It sends drive to all four wheels.

Given the length, girth and opulence, a kerb weight of just 1795kg is outstanding, allowing a power-to-weight ratio of 203kW per tonne in the Modena and a knockout 228kW/tonne in the Trofeo.

To help keep all that in check, the GranTurismo also deploys double wishbones up front, a multi-link independent rear suspension set-up, along with the aforementioned air suspension – which is a nice nod to history as French carmaker Citroen used to own Maserati.

Anyway, the active suspension works in tandem with the four self-explanatory driving models fitted – 'Comfort', the default 'GT', 'Sport' and 'Corsa' (track).

As a middle-aged parent with two children, a Porsche that I don't have to crawl into and out of like a cubby house is a great thing.

What's even better is that this ‘easy access' Porsche is every bit as brutally powerful and fast as the quintessentially ‘pure' Porsche, the 911. Actually, it's more powerful and faster.

The Turbo GT's twin-turbo 4.0-litre V8 petrol engine makes 485kW and 850Nm with drive going through an eight-speed transmission to all four wheels.

In comparison, a Porsche 911 GT3 RS, arguably the most brutal and anti-social 911, has 386kW/485Nm.

I haven't made a mistake. Those are the real numbers. And it's only when you step on the accelerator in the Cayenne Turbo GT, and it feels like somebody's sat down on your chest, that you realise what a big deal this is.

That is such a colossal amount of oomph that this 2.2-tonne family SUV can accelerate from 0-100km/h in 3.3 seconds.

The 911 GT3 RS can do it in 3.2 and it has a roll cage and a fixed rear wing the size of a bedroom door.

And yes, we're now coming into a digital age where Teslas and other electric SUVs are quick, too, but can they go around corners like a Porsche Cayenne Turbo GT?

Do they have the same rumble and roar as a twin-turbo V8 that's terrifying and enticing at the same time.

The correct answer is, absolutely not.

You know, for a super coupe that can easily exceed 300km/h, the GranTurismo is pleasingly efficient, with a combined cycle average figure of 10.2L/100km.

Top that 70L tank with premium unleaded petrol, and you might even average over 680km between refills if you can restrain yourself from poking the bear under the bonnet.

How? Clean aero efficiency, along with that predominantly aluminium body that helps keep the weight down to under an impressive 1.8 tonnes.

Which all bodes really well for 2025’s Folgore EV version, which can also hit 100 in 2.7s on the way to 325km/h. Bring that on!

Seriously? This is a 2.0-tonne twin-turbo petrol V8 with a 90-litre fuel tank. Even the Porsche specs sheet doesn't understand the question because in the column for fuel efficiency there are three letters - tbc.

My own testing saw me record 22.5 L/100km at the fuel pump, which means I enjoyed driving the car very much.

A little digging around reveals Porsche globally claims the Turbo GT will use 12.6L/100km, over a combination of open and urban roads.

You might not have as much fun as I did but easing back a little might get you closer to the 700km of range this more frugal consumption figure appears to offer.

While efficient it isn't, I'm not going to mark the Turbo GT too much here because compared to its petrol rivals the fuel consumption is what I'd expect from such a high-output heavy SUV.

Though it has been modified by what may be an almost unrecognisable amount by Maserati’s engineers, using Stellantis’ Gorgio architecture that first appeared in the magnetic Alfa Romeo Giulia of 2016 and then utterly seduced in the flagship Quadrifoglio version is a great place to start.

Now, we’ve only tested the all-new GranTurismo (GT from here on in) coupe around the fast and challenging Tailem Bend race track near Adelaide, so cannot speak of its behaviour on Australian public roads.

But what we experienced was an incredible and elevating sports car experience. And, yes, that's despite the loss of the magnetic Ferrari-based 4.7-litre V8.

Even with ‘just’ 365kW of power and 600Nm of torque, the base Modena twin-turbo V6 thunders off the line, its superb ZF eight-speed automatic transmission, surely the best of its type in the world, shifting with lightning speed through the ratios as it blitzed past 100, then 150, then 200km/h in mere seconds. Maserati says within 8.8s, in fact.

To help keep all that in check, the GranTurismo deploys double wishbones up front, a multi-link independent rear suspension set-up, along with the aforementioned air suspension – which is a nice nod to history as French carmaker Citroen used to own Maserati.

Anyway, the active suspension works in tandem with the four self-explanatory driving models fitted – 'Comfort', the default 'GT', 'Sport' and 'Corsa' (track).

We were too thrilled to notice whether the loss of the Maserati V8 grumble, because the exhaust howl was exciting enough, along with the sheer ease in which the GT accelerates.

And when we needed to suddenly brake reaching corners that seemed stupidly close until we realised they weren’t, we also were relieved at the Modena’s marvellously effective Brembo brake package.

Now, at under 1900kg, the GT is still a heavy car, but not for a five-by-two metre-long-and-wide 2+2 seater coupe.

Seriously, the cohesion and crispness of the steering, whether in Comfort or three-settings down in shockingly heavier Corsa mode, tingles the senses, seeming far lighter and more agile than the (albeit lithe) luxury coupe styling suggests.

Not Porsche 911 supernatural-alacrity, but beautifully quick and reactive nonetheless. It’s such a buzz.

There’s also a sense of isolation from the air suspension underneath, aided by the trick adaptive dampers doing their bit too to cushion the ride. The vital luxury part of the GT equation is omnipresent in the Maserati coupe.

And this was all just in the Modena. Another few laps in the Trofeo just sharpened the senses and speed and responses, supercharging the experience around Tailem Bend.

What all this left us is a longing for more time behind the wheel. Which hopefully will happen soon, but for now, this is far-and-away the best Maserati I have ever driven. If you can afford one, this is all great news.

Of course, back in the real world on everyday roads, there will surely be criticisms, but for now, around the circuit, the GranTurismo is something very special indeed.

Never have I met a car this powerful and superbly athletic that is as pleasurable to drive alone on great, fast roads as it is to pilot at 50km/h in the suburbs with a family on board.

It exceeds my understanding of engineering that something this large can move so quickly. That in an instant can turn and tip into a corner with such precision and effortlessness.

Yet it can switch seamlessly and happily to coping with speed bumps and potholes, delivering a ride so comfortable it'll send babies off to sleep. And it did.

The only issue, and this is such a tiny thing, is the dash-mounted gearshift, which means having to reach up and select Drive or Reverse or Park, which, when executing a three-point turn, is necessarily frustrating.

Still, I'm giving the Turbo GT a 10 out of 10 for driving under all conditions, and we didn't even go off-road, which of course you can do, as long as it's not too wild.

The Porsche Cayenne Turbo GT hasn't been locally crash tested and so doesn't have an ANCAP rating.

That's quite normal for super high-end cars. But, when this third-generation model first arrived in 2017 it was tested by ANCAP's European equivalent, Euro NCAP, and was awarded the maximum five stars.

There's AEB which operates at city, urban and highway speeds, and lane keeping assistance, and lane change assistance which is a form of blind-spot warning, and adaptive cruise control. You can option rear cross-traffic alert, as well.

A space saver spare wheel is under the boot floor.

Maserati offers a frankly disappointing three-year/unlimited kilometre warranty, which is on the stingier side of things.

Service intervals are also every 12 months or 10,000km.

There is no capped-price servicing, but Maserati offers a pre-paid maintenance program that covers all the inspections and components and consumable replacements.

As the pricing was not finalised at the time of publishing, best to check the company’s website for the latest details.

The Cayenne Turbo GT is covered by Porsche's three-year, unlimited kilometre warranty, which is lagging behind in terms of duration even compared to other luxury brands such as Mercedes-Benz, which offers five years.

Servicing is recommended annually or every 15,000km, although there isn't a capped price maintenance plan with final costs determined at the dealer level (in line with variable labour rates by state or territory).