Jaguar I-Pace vs Porsche Cayenne

What's the difference?

In the 1960s Jaguar used to promote its range as providing “grace, space and pace”. Nowadays, the I-Pace may as well also be known as the I-Grace and I-Space, because all three terms still ring true.

Jaguars were never cheap but the greatest hits felt like exceptional value because they were special. The same applies here. Five years might seem like an eternity, but age has not yet wearied the British luxury EV SUV nearly as much as you might imagine. Especially when optioned up as per our test vehicle.

Bereft of any post-modern brand baggage, the I-Pace remains a modern great. If only more buyers would catch on to that.

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.

Five years on, from the bold cab-forward silhouette to the high-riding crossover proportions, the I-Pace is a distinctive and handsome machine, offering progressive, flowing aerodynamics that have as much to do with function as they do with form. This is an out and proud EV.

But there’s the rub. Perhaps the disappointing sales reception is down to it being too removed from what many consumers might expect a Jaguar to look like.

Grille-aside, there isn’t enough connection with stablemates like the woefully-underrated XE or F-Pace, while traditionalists – many of them Americans ­– wanting classic XJ or XK retro schtick are also plum out of luck. Cover the badge and the styling could be from any (forward-thinking) carmaker.  

Or maybe it’s because the I-Pace, whose body is 94 per cent aluminium to help offset the weight of the batteries, looks compact in photos, like a crossover hatchback, when in reality it is surprisingly large, belying its sleek styling by packing in plenty of space inside.

Speaking of which, let’s take a closer look.

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.

Yes, compared to the vast mega screens invading most new models of today, the I-Pace’s dashboard layout is looking, well, off the pace. On first glance at least, this is definitely a product of the previous decade.

But as far as design elegance and functionality are concerned, Jaguar seems to have created a timeless piece of crafted automotive interior architecture that – consequently – holds up very well.

Or, in other words, the I-Pace provides a welcome sanctuary away from the infuriating folly of today’s faddish, fiddly and infuriatingly distracting touchscreen interiors. Maybe some old-school XJ smarts live on in this EV after all.

Look past the dated dashboard design, and the cabin’s overriding impression is of solidity and quality. No cheap plastics or rough surfaces here, just restrained luxury.

While electronic displays with very-analogue-style dial options amid digital driving data take care of the instrumentation ahead of the driver, a modestly-sized touchscreen is set at a lower plain so as to not dazzle and distract the job of vehicle controlling with data-overload, while under that is smaller display for climate control. More on that later.

Part of the Pivo Pro multimedia system, that central touchscreen is switched on and ready for use before the ignition button is even pressed, for immediate action.

No delaying-tactic welcome fanfare as the system boots up as per almost every other carmaker’s set-up, either. Just instant gratification, ironically. This dash is starting to feel like a resto-mod, with all the latest tech behind that Boris-era façade. 

Plus, besides being fast, it is logically laid out and avoids confusing sub-menus. Nice swipey action, too. Some familiarisation is required at first, but the system makes sense. And if you need volume adjustability, you turn a physical knob. As the ergonomics lords intended. Easy.

Speaking of which, let’s get the sensible stuff out the way. Because it sits at near-SUV height, the I-Pace is easy to get in and out of as long as you’re aware of the swooping roofline out back. And you sit up high, affording excellent forward vision ahead.

Sinking yourself into the front seats, the Jaguar lives up to its old luxo-barge reputation in that they’re sumptuous yet firm in back-location and support, providing hours of comfort if required.

The driving position is superb, with ample adjustment and those thoughtfully-placed switchgear and controls coming into play.

Storage is ample, with deep door pockets, a sizeable centre console bin and even a secret cubby underneath the rear seat.

The Jaguar provides five USB outlets and two 12V sockets. And ventilation is as effective as you need it to be.

Problems? Pleasingly, our Graz-built Jaguar suffered from no breakages or squeaks. It is as well-screwed together as you’d expect from a luxury SUV, so there are no issues there to moan about.

However, rear vision is poor due to the tapering rear windows and shallow tailgate glass. In turn, the back-seat area can seem a bit dark and hemmed-in without the (optional) fixed glass roof.

The glove box is disappointingly shallow. And, though simple in execution, the climate control can be fiddly to figure out at first.

Of greater concern is the counter-intuitive transmission selection, since the ‘DNRP’ buttons are placed in descending order, putting ‘Drive’ up top and ‘Park’ down at the bottom.

On several occasions, ‘D’ was selected instead of ‘P’ or ‘R’, nearly leading to unintended forward acceleration into parked cars or walls directly ahead.

As mentioned earlier, our test HSE features the optional suede dash and pillar covers; along with the beautiful woven grey flannel-like trim on Alcantara-like seats, they add a distinctive classy ambience – and that’s something that translates out back, too.

While you wouldn’t call it a large wagon, it is more than sufficiently spacious for two adults, while middle-seat space is A-OK for smaller folk only as the ceiling tapers a bit too much for taller passengers. Legroom is exceptional, thanks in part to a stretchy near-3.0-metre wheelbase.

The bench seat itself does not slide or recline, but the 40/20/40-split backrest seems sufficiently angled for comfort and support, while the cushion is sprung enough not to lead to achy thighs, even for longer-legged occupants.

Amenities include rear-facing air vents, a centre armrest with two cupholders, two USB and a single 12V port, overhead grab-handles and reading lights, (quite shallow) door pockets, four coat hooks and some under-seat storage.

Further back, the Jaguar’s boot area is set up high, so requires some lifting to get heavier objects in, but the floor is long and flat, and the overall volume is quite practical. Capacity varies from 656 litres to 1453L with the backrests dropped. You can fit a 1797mm by 1244mm object in two-seater only mode.

There’s storage underneath for charging cables, as well as straps and hooks to secure loose items. And, as mentioned earlier, buyers can order a space-saver spare if the tyre-repair kit is undesirable. Note, too, that a sizeable ‘frunk’ front trunk is good for a couple of soft overnight bags.

Overall, then, equipped as our $180K HSE was, the I-Pace’s interior is likely to impress.

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...

Built around a standalone architecture with no internal combustion engine versions, the I-Pace EV400 is fitted with two permanent magnet synchronous electric motors – one above the front axle and one located on the rear axle. Each produces 150kW of power and 348Nm of torque, for a system output total of 294kW and 696Nm.

Tipping the scales at 2226kg, this means the EV400 has a power-to-weight ratio of a very healthy 132kW/tonne, helping this electric crossover cross the 100km/h marker in 4.8 seconds, on the way to a top speed of 200km/h.

With a single-speed transmission sending torque to a motor on each axle, the I-Pace has permanent all-wheel drive.

The I-Pace’s standard suspension is double wishbones and coils up front and an integral link independent set-up out back.

Nowadays, the standard wheel size in the SE is 245/50R20, though ours was fitted with 255/40R22 – along with air suspension and adaptive dampers. These profoundly alter ride comfort. Towing capacity is 750kg braked or unbraked.

Ground clearance is usually 174mm, but with the air suspension, that increases to a handy 241mm in its maximum height setting. At speeds over 105km/h I-Paces with air suspension drop a further 10mm to aid efficiency. Which brings us to…

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.

With a 400V architecture, the I-Pace EV400 has the charging capability of most EVs, but not the Hyundai Ioniq 5 and 6, Kia EV5, EV6 and EV9, Genesis GV60 and Porsche Taycan/Audi e-tron GT fraternal twins, which have an 800V capability.

Under the floor is a 90kWh lithium-ion battery, with a useable capacity of 84.7kWh.

For AC charging, it uses a Type2 connector with 11kW capacity, or for DC fast charging, it has a maximum 104kW capacity via a CCS port. Both are located in the left-hand-side mudguard.

Jaguar says the official combined average consumption is 23kWh/100km. Our car’s trip computer showed we averaged 24.2kWh/100km.

The WLTP range is 408km, or 446km under the more-lenient NEDC regime. Fully charged, our vehicle indicated 407km of range in normal mode and 415km in 'Eco' mode.

After 345km, our distance-to-empty read 14km, meaning we averaged a very reasonable 359km under absolutely normal urban conditions, with some freeway driving thrown in.

Using a 150kW DC fast charger, we added 200km of range in exactly 30 minutes. It cost us around $31.

For the record, AC charging from empty to full using a regular household socket will take nearly 44 hours, or 13.5hr and just 9.25hr if you have access to a 7kW or 11kW Wallbox, respectively.

Meanwhile, a 50kW DC fast charger needs 75 minutes to go from 10-80 per cent full, or 45 minutes with anything above a 105kW charger, as that’s the Jaguar’s maximum capacity.

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.

One of the great EV questions is just how premium brands like Jaguar, BMW and Mercedes-Benz can justify their higher prices, when comparatively inexpensive alternatives from BYD, Hyundai and Kia rely on similar electric motor tech.

Indeed, a Tesla Model Y Performance offers the same acceleration and a higher top speed at nearly $100K under our EV400 HSE as tested.

But then you snuggle into that opulent cabin, buckle up, and realise that – just as the original XJ changed big luxury sedans forever back in ’68 with its sophistication and lush ride – the I-Pace still sets the tone for luxury EV SUVs.

Push the D button and – even in 'Comfort' mode – the Jaguar steps off the line briskly. A long-travel accelerator pedal tune disguises the fact that the EV400 is actually sensationally fast, as it swiftly yet silently streaks towards triple digits in no time at all, accompanied by a dull turbine-like drone.

Select 'Dynamic' mode, and the I-Pace’s performance lives up to both the make and model names, offering instant, pinned-back-in-your-seat thrust as well as ample muscle as it glides along.

Flex your right foot and you're already tailgating Mercedes AMG and BMW M-Sport SUVs in no time. Immediate, addictive speed.

A low centre of gravity; that double wishbone and multi-link suspension layout; near 50/50 weight distribution – we’re expecting something special here, and happily, the I-Pace as optioned up with air suspension, adaptive dampers and 22-inch wheels refuses to disappoint.

The sheer urgency from the twin electric motors is matched by reassuring grip and control, even over the rain-soaked hills we belted along.

Beautifully weighted steering, offering lots of road connection, adds to the sense of confidence and calm, as the Jaguar handles corners with a flat, contained composure.

It’s only when you’re really fanging it through tight and twisty turns that this EV SUV starts to feel its considerable mass.

Keep in mind that our HSE included the optional air suspension and adaptive dampers, because together they provide impressive suppleness and sweet isolation (in Comfort mode, obviously) to go with the I-Pace’s unassuming agility.

They allow for those oversized alloys to swell out the arches without resulting in a ruinous ride – something you’d get a taste of if you switch to Dynamic mode, where everything stiffens up noticeably.

Thus specified, we’d imagine the softness would be well off the scale on the standard 20-inch rubber.  

As tested, our HSE is one of the most enjoyable luxury SUVs to drive and travel in at speed, regardless of what sort of fuel you’re using.

Downsides? Around town, the limited side and rear vision mixed with the Jaguar’s two-metre width makes manoeuvring a little daunting at times.

The turning circle is on the larger side. And the traffic sign recognition tech is far from reliable and doesn’t work in concert with the adaptive cruise control so can’t automatically alter speed to what’s signposted.

Yet our biggest gripe is the lack of greater single-pedal braking when lifting off the throttle.

A set of paddles to alter the regeneration braking force as per Hyundai’s set-up would be appreciated.

This is one of the single biggest giveaways to the Jaguar’s advancing years.

Still, as a hushed, refined, comfortable and forcefully quick luxury EV SUV experience, the I-Pace, with the choice options as fitted, remains a fierce opponent against newer alternatives. Especially from behind the wheel.

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.

The I-Pace is covered by an industry-average five-year/unlimited kilometre warranty, along with five years of roadside assistance.

Additionally, owners will enjoy five years/130,000km of free scheduled servicing. These are at 12 months or 26,000km.

Jaguar says the EV traction battery is covered by an eight-year/160,000km warranty, with a minimum of 70 per cent state of health.

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).