Lexus RX500H vs Porsche Cayenne

What's the difference?

The Lexus RX500h F Sport Performance certainly gave a solid driving performance this week. I was comfortable behind the wheel and enjoyed the luxe features up front. I feel that it's missing some luxe items in the back seat and some of the family storage options that other large SUVs can have but otherwise, it suited my family’s needs. The fuel efficiency was quite surprising for a hybrid, so this gets a 7.0/10 from me.

My son really liked the panoramic roof and his high seating position. So, he gives this an 8.0/10.

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.

The RX is a deceptively large SUV, at first glance the sporty tailoring might make you think it’s the smaller NX sibling but park it and you’ll see how it fills up a space!

It’s 4890mm long and 1920mm wide but the compact 1695mm height is what causes the misdirection.

Let’s get straight into some of the obvious design changes. The iconic ‘spindle’ grille design has been flattened at the top with a new body panel. It’s a design choice that makes the bonnet look more bulbous than sporty but that’s pretty much all I don’t like.  

It was a great choice to lift and level out the sloping of the bonnet because it looks a lot more purposeful now. There’s lots of sporty elements too with the black 21-inch alloy wheels and faux-mesh intake vents at the front and rear. Plus, I’ve always been a fan of the floating roof effect that’s created by the black panelling that shoots from the C-pillar to the rear.

It’s not just the exterior that’s been revamped. The interior now boasts a massive 14-inch touchscreen multimedia system, up from the 12.3-inch screen from the previous generation. The gear shifter is now an e-shifter and the dashboard has been ‘stepped’ to make it feel like you’re being tucked into the cockpit. There’s new ambient lighting inside too, designed to make the interior feel like a luxury lounge.

All round, they’ve nailed the ‘luxury’ aspect.

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.

Sometimes you can forget how many luxury items this car has because they've been sprinkled around too sparsely.

For example, front passengers definitely enjoy the most this car has to offer. The legroom and headroom are both great, while the luxe factors feature heavily with the heated and ventilated seats and heated steering wheel. It’s great that there is dual-climate control up front and ample individual storage on offer.

The driver has a lot of technology within easy reach – the 14-inch touchscreen multimedia system is simple to use and has built-in satellite navigation. You can pull the directions into the head-up display and there’s still a healthy mix of physical dials on display. The wireless Apple CarPlay was easy to connect to and there’s also wired Android Auto, Bluetooth connectivity and digital radio (which was good in the city, terrible in regional areas).

Front passengers are absolutely spoiled when it comes to charging options, too. You can choose between an USB-A port, three USB-C ports, 12-volt port and a wireless charging pad!

When I reviewed the smaller NX sibling, I struggled with the e-latch door handles but finally got used to them on this model (I even like them!). My six-year-old found them to be frustrating at times and if the groans from my family members are to be believed, they weren’t impressed either but I do think it came down to it being a ‘user’ issue!

The backseat is comfortable and perfect for my 168cm height but taller passengers may feel a little cosier. The seats are set in a stadium setting, which does make you feel like you’re teetering in corners but my son loved the high position.

You can comfortably fit a couple of child seats back there but it might be a squeeze for three. The wide door apertures do make it easy to fit a child seat and to bend down to buckle them in.

Individual storage is limited to just map pockets, two cupholders and skinny drink bottle holders in the doors. The amenities never quite make it to luxurious either but I did like seeing two USB-C ports and retractable sun blinds.

The boot space is decently sized at 612L but the aperture is sloped, which means you might struggle to fit some bulky items. It has a level load space and it’s easy to access the temporary spare tyre. The powered tailgate with kick-function is super quick and handy too. 

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...

There is only one engine for the top model and that’s a 2.4-litre, four-cylinder turbo-petrol hybrid offering. It has a combined max power output of 273kW.

This replaces the old V6 hybrid engine from previous models but I found it to still be punchy. In fact, it’s claimed that you can do 0-100km/h in as little as 6.2 seconds.

It’s an all-wheel-drive and features a cool – eAxle … meaning the car is a bit clever with its power distribution using the electric motor to power the rear axle and the petrol engine to power the front. You can notice the gear changes with the six-speed auto transmission but overall, this combination delivers a solid performance.

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 official combined fuel figure is 6.5L/100km and that’s up by half a litre on the previous model. Real-world testing saw my figure at 8.3L, and I was disappointed with the efficiency. There are more efficient options out there that I would consider if the ‘hybrid’ part of the model’s name was what interested you.

With the 65L fuel tank and based off the official combined figure, you should be able to get a 1000km driving range … but based off my experience, I would expect a little less than that.

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.

My first thought when I drove this was that it doesn’t drive like a big car. It has nice sporty handling – it feels firmly positioned on the road and the steering is responsive.

There’s a definite sense of power but it’s lazy. You have to get firm with the accelerator but it performs well when you push it.

There’s an interesting duality at play here because, despite this, it’s not sluggish - I’m just as confident on the open-road as I am zipping across traffic in this.

The suspension is adaptive and feels springy. It handles cornering quite well but I’m not as firmly seated as I would like. My husband said the same from the passenger side.

The cabin is extremely quiet and peaceful until my kid gets into the car. Then it’s 20-questions in 20-seconds. But otherwise, the new active noise cancelling this model has, works.

I really love the 11m turning circle – parking this in a rat-warren car park was simple. The 360-degree view camera is easily in my top three for camera tech that I’ve used and I like how the car ‘disappears’ when you’re manoeuvring. It makes it easier to navigate a tight spot and not get distracted. Large SUVs can sometimes feel daunting to park but not this one.

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 ownership terms have been improved too with the RX now coming with a five-year/unlimited km warranty term, which is more in line with the market standard.

It has a five-year/75,000km capped-price servicing plan and services cost $695, which is $100 more than the previous model. Even with the price hike, the servicing costs aren’t as expensive as others in the class. 

Servicing intervals are reasonable at every 12 months or 15,000km – whichever occurs first, which is good.

Lexus recommends a minimum of 95 RON petrol for this model.

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).