Audi Q5 vs Porsche Cayenne

What's the difference?

Ever since returning from the launch of the new Audi Q5 I've been looking at old ones and thinking how lumpy and dumpy they look by comparison. The new Q5 will be an adornment to our roads in styling terms, it's a tour de force of interior design and its engines might well be the last barking gasp of its kind. So it's definitely worth a look if you're in the mid-size SUV space. And you don't want an EV yet.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

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.

Other than the closely related Porsche Macan, and maybe an Alfa Romeo Stelvio, it's hard to think of a better, smoother looking SUV than this new Audi Q5, with its revised Singleframe grille flanked by vertical air curtains, that look a bit like gills.

Audi claims the Q5 has "perfect proportions", which is bold, but it certainly looks sleek rather than bulky, with a nice silhouette and dynamic rather than Mumsy appeal.

The rear is particularly attractive with a three-dimensional light strip that ties it all neatly together. It's a more refined, sharper look than the Q5 it replaces.

Inside, of course, Audi has either taken its interior to another level of futuristic fabulousness, or put too many bloody screens in, all of which are too big, depending on who you ask. And how old they are. Kids will love it, however.

Interestingly, while every car company ever claims that its cabin has a cockpit feel, focusing on the driver, the Q5 really does. So much so that there's a raised edge in the centre console that quite noticeably cuts the driver off from the passenger. In the other front seat you do feel a bit removed, as if you're meant to leave the driver to it, which might be why you get your own screen to play with.

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.

Audi is talking up the little things with the new Q5, like the fact that there's a much larger storage space under the centre armrest now - and it's true, you can lose your car key in it - plus numerous other storage areas, and an inductive and cooled charging tray so your phone won't get cooking hot and shut off, with 15 watts of power.

In exciting news for screen addicts/children, Audi is also very excited about its uprated USB-C ports, which can charge at up to 60 watts through the two in the front, while the rear passengers also get two more, rated at 100 watts. Which sounds like a lot, Audi says it's enough to run your laptop.

The new Q5 also gets a very useful adjustable rear seat, which can be slid lengthways and tilted, providing either more passenger space and less boot room or vice versa. With the rear seat down you get 1473 litres, but thanks to the new sloping rear design you get slightly less room in the Q5 SUV, with 520 litres behind the second row. The SQ5 gets even less at just 470 litres.

Another handy feature is that the snappy luggage cover can be stowed in a special designed compartment under the boot floor. Clever.

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...

Does it seem strange to anyone else that a company so focused on reducing emissions through promoting EVs is still offering diesel engines? The reason, of course, is that so many Europeans still want them, because fuel is so damn expensive there, and yet Audi Australia says it will also offer them here.

That's where the range now starts, with the TDI diesel version coming standard with all-wheel drive, or Quattro, with outputs of 150kW/400Nm. Like every car in the new Q5 range, it uses a seven-speed dual-clutch gearbox, which is excellent.

Every Q5 also uses MHEV technology to reduce emissions and increase performance, which means it gets a 48-volt electrical system to support its combustion engines. This system means you start up, in most conditions, in silent electric mode, and you can even manoeuvre and park the car using only electricity, most of the time.

The electrical system is connected to a Powertrain Generator which provides additional torque of up to 230Nm, and a mere 18kW of extra power. Every little bit helps I guess.

Basically, it's a mild hybrid, meaning you get a mild amount of help, and the full plug-in hybrid Q5s are coming soon. Later this year.

Stepping up from the diesel you can have a 2.0-litre TFSI four-cylinder petrol engine, with either front or Quattro all-wheel drive and making 150kW/340Nm.

The range-topping all-wheel-drive SQ5 gets a very enjoyable 3.0-litre six-cylinder TFSI petrol engine with 270kW and 550Nm. It feels like more kilowatts, honestly.

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.

The MHEV technology is supposed to provide some boost to fuel economy but the figures aren't super exciting. You'll be getting a claimed 5.9 litres per 100km from the 2.0 TDI diesel, or 6.5L/100km from the 2.0 TFSI petrol.

The V6 is going to cost you more at the pump with a claimed figure of 8.1 litres per 100km. You might want to wait for the PHEVs.

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.

While the new Q5 might feel classier, techier and generally more expensive and Q7/Q8-like on the inside, it's pulled off an even more impressive feat in the chassis department, which no doubt owes a lot to the entirely new PPC platform, because it feels more like a powerful Q3 to drive than the Q5 of old.

That's not a comment on interior or load space, it's just that it feels smaller and more spritely on the road. It turns in better, holds its line better and resists gentle understeer right up to the point where you wonder whether your co-driver has lost his mind or is trying to kill you both.

Seriously, the SQ5 can properly get up and boogie in Sport mode (Audi says one of the things it's proudest of with the new car is how much more noticeable the range of difference is between the relaxed, or 'Balanced' and 'Comfort', modes and the more aggressive ones) and you really have to be going beyond sensible to find the edge of grip.

The SQ5's V6 also makes the kind of noises that now sound weirdly wonderful in an Audi, when so many of the new offerings are electric. Choose to shift the gears yourself and this can be a properly involving machine, and quite impressive for an SUV.

What separates it from the kid of fun you could have in its cousin, the previous Porsche Macan with petrol power, is the steering. It's not terrible, and it is sharp, but it just lacks a bit in the feel and muscle department. Being generous you'd say it's easy to drive but you just know that if this had an R badge the steering would be so much better, and closer to Porsche and BMW.

The diesel TDI model does not make glorious noises, and the whines and groans it does make - which seem loud by Audi standards, it's usually very good at quietening its diesels down - do not encourage you to shift gears yourself or drive it in a sporty fashion. It is a workhorse variant, with plenty of torque, and for a certain kind of customer who cares not for sportiness or excitement I'm sure it's a fine option.

One thing I did not expect to be doing on an Audi Q5 launch is clambering up and over a rock strewn mountain on properly rutted and rough gravel tracks, but that was an option here so I took the 2.0 TFSI on the optional off-road adventure and I must say I was both surprised and impressed.

The Q5 is not a mountain goat, or a Land Rover, but despite feeling like I was doing the gardening in a shiny suit, I managed to traverse a track that felt too serious and intense for a soft roader, and did so with ease and in comfort. The air suspension raises the Q5 a full 45mm in Off-road mode, so ground clearance was no problem - nor did I encounter any boulders - but the way the Quattro system dealt with the dirty stuff was impressive.

Overall, I can see that this TFSI model is the sweet spot in the range in terms of value and performance, and it really is all the Q5 you could need. It never feels underpowered, unless you've just stepped out of the SQ5, and you get all the benefits of the chassis and handling upgrades.

Personally, though, I'd have the SQ5 just for the rorty V6 noises alone. It feels like something new, but also the end of something wonderful.

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.

All Audis are now covered by a five-year, unlimited-kilometre warranty, up from its recent offering of three years, which is better, but could be better still.

There's no news on what servicing arrangements will be because the new Q5 doesn't lob until Q3, but in general the brand will let you prepay your services, required annually, for the first five years, with the regular Q5 currently billed at $3140 and the SQ5 billed at $3170.

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).