Rolls-Royce Cullinan vs Aston Martin DBX

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.

As with all Aston Martins the DBX is a seriously beautiful car with that high-end exotic but restrained exterior styling for which the brand is known. As with all Astons, too, the busy interior design may put some minimalism fans off and those high-placed shifting buttons pose a functionality problem.

As an SUV the DBX is spacious and practical. You could use this daily as a family car. I did and found it easy to adapt to.

The driving experience left me disappointed. I didn’t feel the same close connection with the DBX while driving that I have had with other super SUVs, such as the Lamborghini Urus and more affordable models offered by Porsche and Mercedes-AMG.

But then, you see those other cars everywhere, unlike the DBX which is a rare and beautiful creature, despite the flaws.

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. 

I'm not one to name drop but I was having a chin wag with Marek, that's Marek Reichman, Aston Martin's Vice President and Chief Creative Officer, the fellow who has designed every Aston from the past 15 years, that Marek. Anyway, before the DBX came out he told me any SUV he designed would be unmistakably an Aston Martin.

I think he nailed it. The gaping Aston Martin grille is unmistakably the same as the DB11's and the tailgate, which although is the back hatch to a large SUV, is absolutely the same as the rear end of the Vantage.

Everything in between has all the family hallmarks. There are those oval headlights and the huge beak of a bonnet, the chiselled side panels with wheel arches that push up towards the sky and those rear haunches.

Not a fan of minimalist design? Then you'll love the DBX's cabin and its dashboard cluttered with dials, buttons, and switches.

It's like the cockpit of a plane and it's a very Aston Martin thing – just look at the layout of the DB5 from the 1960s, it's a mess, a beautiful mess though. The same goes for current models such as the DB11, DBS and Vantage.

Seriously, if there was one area where Marek may have decided not to make the DBX unmistakably Aston Martin, I wish it had been the interior.

Still, I think the DBX has the best cabin design of any current Aston, with its large media screen built into the centre console and more modern styling.

But regardless of what it looks like the feel of the materials is outstanding. There's a thick leather coating on just about every surface, apart from those which are solid, cold metal, like the paddle shifters and door handles.

It's a plush, sporty place, like Batman's suit only it smells a lot nicer.

The DBX is a large SUV at 5039mm long, 2220mm wide with the mirrors unfurled and 1680mm tall. Yep, this thing fills up an entire space in a car park.

The DBX comes in a choice of 53 colours. Yes, fifty three.  There's the 'Onyx Black' my test car wore, but also 'Royal Indigo', 'Supernova Red' and 'Kermit Green.'

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.

Until the DBX came along the most practical Aston Martin was the five-door, four-seater Rapide which had a huge rear hatch and a boot big enough to swallow an entire matching five-piece luggage set – I saw it with my very own eyes.

Now there's the DBX which seats five (well, four comfortably, because nobody wants to be in the middle) and has a boot with a luggage capacity of 491 litres under the leather cargo cover.

As you can see it fit our three-piece CarsGuide luggage set, and I also used it to pick up some compost – very likely the first time anybody has done this to a DBX ever in Australia, and probably the last.

Cabin storage is impressive. The floating centre console is suspended like a hammock and under it is a huge bunk for a phone, wallet, and small bags. The split-opening armrest houses a large box, too.

The door pockets are on the small side but there are two cupholders up front and another two in the fold-down armrest in the second row.

Talking of rows, there's no third row. The DBX comes as a two-row, five-seater only.

It’s a roomy second row, with more than enough space for me at 191cm (6'3") tall to sit behind my driving position and headroom is excellent, too.

There is only one type of Aston Martin DBX and it wears a list price of $357,000, so it resides in the price range above the Porsche Cayenne, which tops out at $336,100, but below the Lamborghini Urus, which starts at $390,000.

The Bentley Bentayga V8 is its closest price rival, starting less than $10K higher than the DBX.

And while we're marvelling at the emergence of these super SUVs don't discount the original luxury SUV brand. The Range Rover SV Autobiography Dynamic is $351,086, and superb.

Let's take a look at the Aston Martin DBX's features.

Coming standard is leather upholstery, heated front and rear seats, three-zone climate control, a 10.25-inch media display with sat nav, Apple CarPlay and digital radio, a 12.3-inch digital instrument cluster, a panoramic glass sunroof, power tailgate, proximity key with push-button start, LED headlights and tail-lights, and 22-inch forged alloy wheels.

For this high-end corner of the market the value is good, but there are a couple of misses such as the lack of a head-up display and Android Auto isn't supported.

But if you wanted a shopping trolley packed with value you'd go to a supermarket, right? Maybe. What you really want to know is what it's like to drive, right? Let's start with horsepower.

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. 

When it came to giving the DBX an engine Aston Martin chose the same 4.0-litre twin-turbo V8 that's in the Vantage only they made it more powerful – 25kW more at 405kW (542hp). There's 15Nm more torque as well, at 700Nm.

Shifting through a nine-speed automatic transmission the DBX's 0-100km/h time is 4.5 seconds, which is almost a second slower than the Vantage's 3.6 seconds.

That said, the DBX weighs more than 2.2 tonnes, has a maximum ground clearance of 190mm, can wade rivers to a depth of 500mm and has a braked towing capacity of 2700kg. Oh yeah, and it's all-wheel drive.

That engine is one of the world's best V8s. It's light, compact, efficient and can produce enormous grunt. It's also made by Mercedes-Benz. Yup, it's the same (M177) 4.0-litre V8 found in the Mercedes-AMG C 63 S and a stack of other AMG-badged beasties.

There's just one thing, the V8 in the DBX doesn't sound as good to me as the one in a Mercedes-AMG. Aston's version has a less guttural and breathy exhaust note.

Sure, it still sounds amazing and when pushed hard it screams like Boudica charging into battle, but how often will you drive like that?

Most of the time we're in traffic in the suburbs and city trundling around at 40km/h. But even with the ‘loud’ exhaust mode set the note is still not as deep and brash as the AMG, which sounds delicious even at a standstill.

You probably already know why Aston Martin uses Mercedes-Benz engines. But just in case, it's because the brand with the star has been a part owner since 2013. Aston saves money and in return gets some of the best engines in the world.

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.

In my fuel test of the DBX I took in open roads and city streets and measured 20.4L/100km at the pump.

On the same test loop the Urus I drove used 15.7L/100km and the Bentley Bentayga consumed 21.1L/100km.

It's not surprising these super SUVs are thirsty, but if you're spending all your time on city roads you can expect the consumption to be even higher.

What is surprising is Aston Martin thinking anyone could really get 12.2L/100km, but then all carmakers tend to claim overly ambitious fuel economy figures.

Just think, your next car after this will probably be electric, so enjoy the petrol while it lasts.

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.

The DBX is a circa 550 horsepower giant that can reach out and almost touch 300km/h. But testing it on Sydney's roads is like having a champion racehorse in your backyard and your neighbour asking you what it's like to ride.

A racetrack wasn't handy at the time and I'd signed a form saying I'd not put any more than 400km on the clock during its stay with me, which meant having to choose my test loop carefully.

Fortunately, this was before Sydney was plunged into the current COVID lockdown, which makes that 400km now seem vast.

First, the DBX is an SUV anybody could drive, every day. Visibility is great and the ride is fine considering it rolls on 22-inch wheels and wears rubber as wide as some doorways and as thin as my socks (285/40 front and 325/35 rear Pirelli Scorpion Zero). Power delivery is smooth and predictable.

I did drive it every day, doing the shopping, school pick ups, a trip to the garden centre to fill it with plants and (ahem) compost, and it performed exactly as a large SUV should.

A source of frustration was the location of the shifting buttons high on the dashboard. Have a look at the images. Even with my chimpanzee-like long arms I had to stretch to change from Drive to Reverse. And with a not so small turning circle of 12.4m, three-point turns were a bit of an arm workout.

But the bigger frustration was the driver-car connection which didn't feel quite right. A good car-driver connection is essential for any great performance car.

Yes, there wasn't a race circuit where I could get to know the DBX quickly. But a good road, driven often with test cars, reveals a lot, too.

And the DBX didn't feel as good as the Lamborghini Urus, which is not only more comfortable but feels more dynamic and offers a superb connection between the driver and the machine.

The DBX is fast, it's powerful, the huge brakes pull it up quickly (almost violently so, if required) and handling is incredibly good.

It's just that I didn't really feel a part of it much at all. You know, the whole driver and car becoming one, thing. I felt like the third wheel on a date.

That connected feeling has been mastered by Porsche with its SUVs, but I feel the DBX needs more work. It felt unfinished.

I was told at the start that the DBX I was testing was a pre-production vehicle, but I'm sure that doesn't cover the shortcomings in the way it drove.

It's disappointing. I was hoping for better, but I think further development will see that come later.

The DBX hasn't been given an ANCAP crash safety rating and it's unlikely it ever will, which is often the case with low-volume, high-end models.

Still, the DBX comes standard with seven airbags, AEB, lane keeping assistance with lane-change warning, rear cross-traffic alert, blind-spot warning, traffic sign recognition, auto parking and adaptive cruise control.

For child seats there are three top tether anchor points and two ISOFIX mounts across the second row.

I found it easy and quick to fasten my son’s car seat into the DBX.

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."

The DBX is covered by Aston Martin's three-year-unlimited kilometre warranty. Also included is roadside assistance.

Service intervals are every 12 months or 16,000km.

Aston Martin doesn't have have capped price servicing for the DBX nor can owners purchase a maintenance plan for the SUV.

We asked Aston Martin for an estimate of how much owners can expect to pay for servicing over the life of the warranty, but a spokesperson told us, "We are unable to provide an estimate on the cost of servicing over three years."

With Aston Martin unable or unwilling to give us any guidance on servicing costs, maybe there are recent model Aston owners out there who can. Let us know in the comments section below.