Rolls-Royce Cullinan vs Xpeng G6

What's the difference?

The Cullinan might not be the most beautiful or traditional Rolls-Royce, and it’s a shame modern success means providing an SUV option to everyone, but it’s still a remarkable machine, either to drive or just to sit in. It remains not just a marvel of engineering, but a marvellous of engineering. Hats doffed, old bean.

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

You never know quite what to expect when you jump into the first model from a brand-new brand, but the XPeng G6 was a pleasant surprise. And at this price, with these features, it should really give Tesla Model Y shoppers something to think about.

It is something of an achievement when a team of designers manage to make a facelifted version of a vehicle less ugly, daunting and disappointing than the original.

I thought the first Cullinan, launched five years ago, looked like a London black cab that had been mounted and inseminated by a double-decker bus. Big? Sure? Impressive? Yes. Beautiful? Only if you think Boris Johnson is sexy.

There was a lot of chat at the launch about the changes made for Series II, but in summary they tried to make it look more… like a boat, according to Exterior Design Lead Henry Clarke.

“We don’t look for speedy, overcomplicated lines, we take our inspiration from the luxury world, and it’s often from yachts, it’s that same sense of scale and grandeur, that’s the key to the timelessness of a Rolls-Royce,” he explained.

“We’re not focused on the world of automotive design, and if you look at the Cullinan it has that ethos you think of with a yacht, that strong, vital bow and then everything rearwards, the back of a yacht, has an elegance and grace to it.”

Fair enough, but what I appreciated was that they’ve squared the front end off a bit more, by outlining the grille, adding some gills beneath it and putting in some natty DRLs, and then rounded off the rear a little as well, so that it looks less… awful.

Indeed, after a couple of days of staring at it (and particularly admiring how good it looks in your rear-view mirror when behind you), I did come around to its looks. Certainly a lot more than last time.

And strangers driving past seemed to really like it, because they keep smiling and clapping at me. 

There’s more than a little Tesla Model Y in the XPeng’s exterior design, with the two sharing the same kind of soft-edged, swept-back SUV styling. 

It helps make the XPeng look familiar and inoffensive, and while I wouldn’t go so far as to call it ground-breaking, I think it has enough exterior flourishes to break up the body work, and I don’t mind the way it looks, and the way it sits on those big alloys.

Inside, it’s a spacious and pretty stylish space. This giant screen is super responsive, and is easy enough to navigate, with the key functions (like climate) glued to the bottom of the screen so you don't have to paw through menus to access them. The idea begins to fail when you have Apple CarPlay or Android Auto active, though, as you have to revert back to the car's home screen to access anything.

The XPeng uses its steering wheel controls to access air-con fan and temp controls as a kind of shortcut, but confusingly they change to distance adjustment when you’ve got the cruise control on. An easier, and much better solution would be to bring back buttons.

I also don't love the stalk-style gear selector, which doubles as a cruise control activator, and, with a double pull, as your autonomous helper. It just feels super old-school in a vehicle this modern.

What is a massive win though is the driver screen. Tesla fans can scream minimalist aesthetics all they want, but the drive experience is simply better when you can see your speed and other key info right in front of you.

In terms of being a vehicle you might actually use - and keeping in mind that if you can afford one of these you’ve also got at least a half dozen other choices - every day, the Cullinan is the pick of the Rolls-Royce enclosure.

From the big boot space - 600 litres with the seats up, 1930 litres with them down - and its lovely little Viewing Suite, through the spacious rear relaxing zone to the absurdly comfortable and plush front seats, there’s a sense of grandeur about the whole Cullinan experience.

You can opt for a champagne fridge between those rear seats, if you like, or you can just lie back and stare at the blinking pins of light in your 'Starlight Headliner' and imagine that each one of them represents one of your millions, smiling down at you.

It’s a lovely place to be, in short, and with its super-thick double glazed glass, coated with an acoustic layer on top of that, and carpets thick enough to keep out road noise on their own, it’s also a very pleasantly quiet one.

At 4753mm in length, 1920mm in width and 1650mm in height, the XPeng fits into the fast-growing mid-size electric SUV space. 

And it ticks a lot of practicality boxes, like with its 571-litre boot, swelling to 1374 litres with the seats folded. But its real party trick is in the back seat, where the space is properly massive. 

I have another mid-size SUV, powered by a petrol engine, at the moment and our baby seat presses against the back of the passenger seat. In this it feels like I could fly a kite in the space between them.

It’s the same for passengers, too. Honestly, the real estate on offer is massive, and that includes for the middle-seat rear passenger, where the lack of a bulky tunnel eating into legroom means adults can sit there comfortably.

There's a pull-down divider separating the back seat that's also home to two cupholders, and there are twin USB connections, as well as air vents (though no temp controls).

There's no spare tyre, though, which means fiddling with the repair kit should you get puncture, or waiting for roadside assist.

Okay, first things first – what the hell is XPeng? It's been around for about 10 years in China, but only made its way to Australia last year. It was founded by some former car company execs and tech tycoons — one of whom is telecommunications billionaire He Xiaopeng, which is where that name comes from.

Anyway, this one is the XPeng G6, which launched in Australia with two trims – the Standard Range, which is $54,800, before on-road costs, and the one we’ve tested, the Long Range, which is $59,800. The difference is in the battery size, of course, but we’ll get to that in a minute. 

As of now, the new Model Y can be ordered for $63,400 for the Standard Range or $73,400 for the Long Range, which makes the XPeng a whole heap cheaper.

Outside, you get LED lighting all around (including the DRLs), a massive glass roof, auto door handles, an auto-opening boot, a V2L connection, which allows you to use your XPeng’s battery to power whatever you plug in and big 20-inch wheels wrapped in Michelin rubber.

You also get some cool high-tech features, accessed through the XPeng app, like the ability to drive your car out of tight parking spots remotely.

Inside, there are synthetic-leather seats that are heated, a heated steering wheel, dual-zone climate, a massive 18-speaker sound system (with speakers in the headrest), wireless charging and two very handy screens — a responsive 15-inch central screen with Android Auto and Apple CarPlay, and a 10.2-inch digital dashboard.

There’s also more safety stuff than you can shake a crash test at, but we’ll come back to that in a second.

Rolls-Royce has committed to being a fully EV brand by 2030, so it’s a safe bet this Series II Cullinan will be the last one offered with its storming, staunch V12 engine. 

Indeed, Rolls hinted the only reason it hung around in this version is that this is only a mid-life face-lift for the Cullinan, and the car that replaces it will arrive on an entirely new, all-electric platform.

As good as the EV Roller, the Spectre undeniably is, driving this old-school Cullinan with its 6.75-litre twin-turbocharged V12 making the kind of thumping, torque-thick, nothing-is-too-much-trouble acceleration is a hoot.

It’s not loud, but it’s just loud enough that you can enjoy its deep, brassy tones, and it’s got plenty of power in reserve to hurl even this 2.75-tonne machine past lesser vehicles with ease.

There are two Cullinans to choose from, of course, with the base model providing a very pleasant 420kW and 850Nm or the sportier Black Badge version (Rolls calls it the brand’s “alter ego”) with 441kW and 900Nm. 

This G6 is a rear-wheel drive affair, with a single electric motor housed at the rear axle. It produces 190kW and 440Nm in Standard Range form or 210kW/440Nm in Long Range guise, which don’t sound like massive numbers — especially given the 2.0-tonne-plus weight of this XPeng – but it gets up and moving just fine.

The 100km/h sprint is a claimed 6.2 seconds, while the top speed is 200km/h.

Rolls-Royce claims the Cullinan will provide you with between 16 litres per 100km and 16.8L/100km, but I believe you’d have to drive it quite steadily to achieve even that quite appalling figure.

Twelve cylinders, 2.75 tonnes, you do the math, but it's interesting to note that with a nearly full tank - and we’re talking 100 litres of fuel - my distance to empty was looking like barely more than 500km - that’s an EV-like number.

The Long Range version of the G6 nabs a 87.5kWh battery (compared to 66kWh in the Standard Range), unlocking a claimed driving range of 570km. 

The official power use figure is 17.5kWh/100km, but I did a fair bit of driving on all sorts of roads and my number was more like 14kWh.

When it does come time to charge, the G6 is set up for 280kW DC fast charging which means, should you find the right fast charger, a 10-80 per cent charge should arrive in just 20 minutes. Home charging will take a lot longer, of course – we’re talking overnight plugged into a regular wallbox.

The first word that comes to mind when describing the experience of driving a Rolls-Royce the size of a small housing estate is 'intimidating', because it's one of those cars where you take a few deep breaths before setting off (while muttering “please don’t crash it”) and then some sharp intakes of breath the first few times you find cars coming towards you on a narrow road, of which there are many on Ibiza where we were summoned to drive it.

I followed a panicked young man from India who had never driven a Rolls, nor a left-hand-drive car before, and boy, he sure looked intimidated, even if he didn’t ever get above 30km/h.

The incredible thing about the Cullinan, however, is how quickly it relaxes you and how astonishingly light and easy it is to drive. The steering feels almost absurdly light at first, you really can drive it with just one finger, two if you’re feeling cautious, but once you get used to it it just feels very Rolls-Royce.

The whole brand lives on the idea of effortlessness, wafting over the world, and the much-touted 'Magic Carpet Ride', and it really does deliver that sense of ease. You’re almost as relaxed at the wheel as you are in the rear seat (and the massage functions only make you feel more so). 

Speed humps do upset the Cullinan, but only a very little, and you’re aware when the car finds broken surfaces, but only distantly so. It feels like someone is dealing with bumps and imperfections in a far-off-place, perhaps the car’s basement, and it shouldn’t worry you too much.

When traffic annoys you, you can just make it disappear by engaging your whumping V12 engine and making the world go briefly blurry. 

Attempt to throw the Cullinan through sharp bends at speed, however, and it reacts in much the same way you’d expect the cruise ship it somewhat resembles to.

There’s a bit of body roll, but it’s all quite polite and a sense that if you need to drive like that, perhaps you should go and get one of your other cars.

The Black Badge version does feel just a trifle sportier than the base Cullinan but we’re splitting very grey and expensively coiffed hairs here.

The overall experience is one of grand relaxation, imperiousness and a certain touch of superior glee.

How much you love your time behind the wheel of the XPeng G6 comes down to what you're looking for from your mid-size electric SUV.

Speed and sportiness? There's not much of either. But it does serve up tons of space and technology, surprising refinement and a calm and cosseting ride.

And I think you can mount a pretty solid argument that all of that is pretty important in a mid-size SUV, more so than the ability to carve corners.

I did some solid driving in the G6, including a round trip from Sydney to the start of the NSW South Coast, taking in every road type and surface imaginable, and XPeng proved super comfy, pretty quiet and very, very easy the entire time.

Sure, it's not one of those EVs that makes the scenery blur when you put your foot down. Its outputs and acceleration are a bit more user-friendly than that. But it also doesn't ever feel underpowered, with the plenty of poke away from the lights and even some in reserve for freeway overtakes at 110km/h.

The steering, even in its 'Dynamic' mode, is fairly soft, and you can never magic away the weight of the XPeng in corners, where that compliant suspension does allow for some roll, but it also doesn't feel entirely disconnected from the road below in that disconcerting way some vehicles can.

So, if comfort is mission critical in your SUV space, the XPeng delivers.

Oh, and I know that big screens aren't that uncommon these days, but the multimedia unit in the XPeng is a treat. It's super fast, even when scrolling across maps, and it's relatively user friendly, too.

The XPeng G6 wears a maximum five-star ANCAP safety rating from assessment in 2024, owing mostly to a flood of active safety features that arrive as standard, including AEB (with pedestrian, backover, cyclist, motorcycle and crossing detection), lane departure warning, lane keep assist, speed sign recognition, driver monitoring and more.

But it could also lay claim to a unique record – the first Chinese EV in which the safety systems don't make you want to make you pull your hair out with their incessant chiming and bonging.

Only on the freeway, where an intermittent chiming incorrectly warned me I was leaving my lane, were the safety systems at all overzealous. Otherwise, they were entirely liveable.

If a crash is unavoidable, the airbag count runs to seven (dual front, front side, side curtain and front centre) and multi-collision brake is standard, to minimise the chances of a secondary crash following an initial impact.

Questions about service intervals and warranties seem to confuse the people at Rolls, as if none of their customers have ever bothered to ask.

Yes, you would think servicing would be free when you’re pushing a $1 million price tag, and that the warranty would be for life, particularly considering the low mileage on these things, but it is, in fact, just a four-year servicing and warranty offer for Australian customers of this vehicle. So that means an unlimited-mileage warranty, including all services, for the first four years (at which point you obviously buy a new one). "Rolls-Royce Motor Cars will offer a service inclusive package but no pricing available yet and this will not be required until the fifth year of ownership."

I'm scoring the regular warranty offering here, which is five years or 120,000km, with the battery covered for eight years or 160,000km. Keep an eye out for deals, though. At the time of writing XPeng was offering a 10-year warranty on both, for example.

Service intervals are 12 months or 20,000km. The cheapest individual service is $238, but over five years the total cost is $2064, averaging out to more like $410 per year.