BMW XM vs Range Rover Sport

What's the difference?

It’s pretty obvious the XM is designed to impress people with big wallets and an appetite for a techy experience that’s also not without a few green credentials. The ability to motor around as a fully-electric vehicle for up to 80km or so is a big plus and the electric-ballroom interior vibe is hard to ignore, as well.

But from our perspective, the full-fat, twin-turbo V8, while offering startling performance, is perhaps a lost opportunity to follow some of BMW’s competitors into the engine-downsizing space. Then again, when you floor the throttle and 2700kg hurtles forward like a big dog on a short chain, you can see where BMW is coming from.

Perhaps the biggest letdown is the ride quality – or lack of it. While it’s understandable BMW wanted the most dynamic version of the XM it could manage, the end result plays against the vehicle’s otherwise long suit of hyper-luxury. Doubtless, BMW would argue that to soften the chassis would have been to introduce a chink into a no-compromise product. But, perhaps, sometimes a sensible compromise is the way forward.

Range Rover proudly calls it its “most dynamic” model ever, and based on our first experience that’s most definitely true. Its ability to be genuinely exciting to drive on a race track is nothing short of remarkable for a brand whose history is all about off-road prowess.

On the road it shines just as brightly, with its potent engine and state-of-the-art suspension system working in unison to make for a stunningly dynamic large and luxurious SUV. And then, if you need to cut across a field or scramble up a slippery hill, it will do that too.

Range Rover’s claims of ‘breadth of capability’ is apt but arguably an understatement. I’d stop short of calling the Sport SV the obvious class-leader in the high-end, high-performance SUV market because it’s up against some seriously impressive rivals, but the Range Rover offers a broader range of ability than any of its competitors.

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

There’s nothing subtle about the way the XM looks. It probably pulls up just short of brutalist (or maybe not) but even those who find its slabs and angles attractive have to admit that it’s bold.

The now-trademark giant nostrils set the mood and the rest of the exterior suggests some kind of armoured transport for presidents rather than wheels for the school run. Doubtless, this will hardly be seen as a fault by those in the market for such a thing.

The real surprise here is that the XM does not share a bodyshell with any other production BMW. Sure, the V8 petrol engine and wheelbase are common to other BMW and M models, but the sheet metal is the XM’s and the XM’s alone. That in itself, is quite a statement of intent.

Range Rover is a brand synonymous with big, imposing and off-road capable SUVs, not dynamic and sporty vehicles. But in recent years the Evoque and Velar have added a new layer of style and a sleekness to the brand’s reputation.

The latest generation Sport is still a big and imposing two-tonne SUV, but it’s also definitely sportier to look at and the SV changes only add to that.

It only takes a moment looking at it and it’s clear this is an SUV that means business. The 23-inch wheels fill out the guards, the air-suspension can lower the body to the ground and the aerodynamic package, including the front splitter, make for a purposeful look.

The carbon-fibre bonnet can be finished with the centre section exposed, showing off the weave of the fibres, which is a nice touch, although fake vents on the bonnet and front fenders are a bit disappointing.

Given the vast exterior dimensions and a weighbridge ticket the wrong side of 2700kg, it may come as a surprise to learn that the XM is strictly a five-seater with not even an optional third row.

That said, the uber-SUV Lexus LX in flagship, Ultra Luxury, trim offers just four seats in deference to the VIP clientele it’s pitched at, but also comes complete with reclining rear seats and a passenger’s side footrest which the XM can’t match.

Staying in the rear seat, there’s lots of legroom and plenty of space under the front chairs for feet. A lot of that is down to the wheelbase the XM shares with the BMW X7, and even behind a tall driver, there’s lots of space. In fact, compared with a BMW X5, there’s a full 150mm of extra legroom.

The pew itself flows into the door trims for a lounge effect which looks great with the contrasting light-coloured trim, and the centre arm-rest folds down to reveal a pair of cupholders. Extra storage space can be found in fold-out pockets in the rear of each front seat which also house a small, lidded panel that opens to reveal USB ports and power sockets. Dual-zone climate controls are also part of the rear-seat experience.

The gee-whizz stuff hasn’t been ignored, either, and the prismatic roof lining is nothing if not a talking point. But would a panoramic sunroof have been of more value to many buyers? The ambient lighting is a nice touch, too.

Up front, the view is dominated by the giant, twin curved animated dashboards. They deliver information and lots of it, to the point where it can almost seem a bit overwhelming.

The head-up display helps simplify things, but there’s absolutely no doubt there’s a lot going on in this cabin. Again, this is modern luxury motoring, but it remains that the menu system will take time to learn, even if the touchscreen function gives you an option on how you control things.

Multi-adjustable front seats are part of the deal and there’s an M-spec steering wheel which is heated. And although it features plenty of buttons, isn’t as daunting perhaps as the multi-spoked equivalent in some high-end AMGs of late.

The stereo system is also worthy of a mention, being a Bowers & Wilkins unit with roof mounted speakers and no less than 1500 watts of power. Digital radio is part of the package.

Even though it doesn’t offer a seven-seat option, luggage space in the rear of the XM is hardly class-leading. Cargo volume with rear seat up is 527L and 1820L with it folded.

Much of the wheelbase is devoted to rear-seat stretching room and although the batteries for the electric motor are positioned under the rear seat, the floor of the cargo area seems quite high.

There are two stand-out features in the cabin, beyond the standard high-level of luxury you expect from a Range Rover Sport. 

The first is the SV-specific steering wheel with illuminated paddles, which feels solid in your hands. But the second is by far the most interesting, the so-called Body and Soul Seats (BASS), which Range Rover has developed in conjunction with Coventry University.

Available with either genuine leather or ‘ultra fabric’ and a 3D-print knit trim, the seats look great on the outside but it’s what’s inside them that’s special.

There are four audio transducers integrated into the seat back which can vibrate to the beat of whatever audio track you’re listening to. The system uses AI to detect the lower frequencies and then work out which beats to transmit.

This is technology used by musicians, Coldplay’s Chris Martin reportedly wears transducers integrated into a vest when he performs, but Range Rover is confident it will add to the ownership experience.

It’s certainly an interesting technology and a demonstration across different music genres highlights the way the system adapts to individual songs, but it’s hard not to feel like this is more of a gimmick than something an owner will use every day. 

If you don’t like listening to music with it, the Body and Soul Seats also work with a ‘Wellness’ setting that features six audio pieces (designed by Coventry University musicians) - calm, soothe, serene, cool, tonic and invigorate.

It’s probably what you need to help settle your heart rate after you unleash the full performance potential of the Sport SV.

In the back seat there’s none of this technology but they do feature heating and ventilation as well as power recline functions. There’s also four-zone climate control, so every occupant can be comfortable.

To be blunt, the Range Rover Sport SV is one of those vehicles that if you have to ask, you can’t afford. Particularly in this case, as the model has launched in a single specification level, the Sport SV Edition One, which is priced from $360,800, plus on-road costs.

That puts it into the same financial category as the likes of the Aston Martin DBX ($356,512), Porsche Cayenne Turbo GT Coupe ($364,700) and Lamborghini Urus ($409,744) - especially when we discuss some of the pricier options.

For that price the Sport SV Edition One comes with exclusive branding on the front splitter, centre console, treadplates and puddle lamps as well as a raft of standard features likely to carry-over to the 2025 model year version.

These include carbon-fibre badges, forged 23-inch alloy wheels, digital LED headlights, a carbon-fibre bonnet, 16-way electronically adjustable front seats, Meridian 'Signature' sound system, 13.1-inch multimedia touchscreen, Apple CarPlay and Android Auto and newly developed ‘Body and Soul Seats’ (more on those later).

But if you’re feeling really sporty, you can upgrade your Sport SV with lightweight carbon fibre wheels and carbon ceramic brakes.

These will cost you a staggering $16,130 and $13,500, respectively, but the wheels measure 23-inches and are the largest fitted to a production car (and are also Australian-made by Carbon Revolution in Geelong).

Unfortunately, for now at least, this is all a moot point because Range Rover Australia has already invited and sold all examples of the Sport SV Edition One, so you'll need to be patient and wait until at least 2025 to have the option to buy one.

Here’s where the XM starts to justify its price-tag. While the use of an electric motor to boost a petrol engine has allowed some manufacturers to reduce the capacity of the latter, no such restraint has been shown for the XM. Instead, it gets the full 4.4-litre, twice turbocharged V8 that we’ve come to know and love from this brand.

It’s not that this is the engine’s first date with hybrid technology, but the mild hybrids that have come before it can’t match the XM for sheer brutality when both power units are unleashed.

The petrol V8 can muster up 360kW and 650Nm which, when boosted by the electric motor, jumps to a total of 480kW (combined) and 800Nm.

While the petrol engine drives through an eight-speed torque-converter automatic, the electric motor also drives through the transmission, an arrangement that is a bit different to some hybrids which use the petrol engine for the rear axle and the electric motor to drive the front wheels.

Of course, the requirement for the XM to feature permanent all-wheel drive, regardless of what power unit is running at the time, forces this layout.

Speaking of all-wheel drive, The XM’s version of BMW’s 'xDrive' layout has been specifically tuned for this vehicle and includes torque vectoring as well as a limited-slip rear differential.

The system has the ability to vary the torque split front to rear, with the default rear-bias giving a more sporting feel on good surfaces. An active rear differential also helps give the car a rear-drive feel.

As well as modes for 'Hybrid', 'Electric' and 'eControl' modes, the XM sticks with the M tradition of offering two M buttons which can be configured to set the parameters for steering, driveline, chassis and, in the case of the hybrid XM, the degree of braking regeneration offered.

Four-wheel steering is also part of the XM’s repertoire and, interestingly, there’s no air suspension here; just conventional steel springs.

But it does feature an electrically-adjusted anti-roll bar system which aims to strike a happy medium between what the driver wants and the road conditions demand.

Sadly the wonderfully evocative supercharged V8 engine from the previous generation Range Rover Sport SVR is gone.

But, thankfully, in its place is a more powerful engine that’s exclusive to the Sport SV in the Jaguar Land Rover family.

It’s a 4.4-litre twin-turbo V8 petrol engine with mild-hybrid assistance, which is actually built by BMW and based on the same powertrain as you’ll find in the M5, albeit with some specific Range Rover elements for more off-road capability.

It’s also more powerful than the old supercharged V8, making an impressive 467kW of power and 750Nm of torque, which is a 44kW and 50Nm improvement over the old engine.

It’s paired to an eight-speed automatic transmission, again with a specific SV calibration for improved performance. 

And, of course, being a Land Rover, it’s also got a four-wheel drive system with full off-road systems as well as an active locking differential.

A 25.7kWh lithium-ion battery provides the power for the electric drive. It’s mounted under the rear seat and can produce a purely electric range of between 82 and 88km (based on WLPT test protocols).

Charge time from a conventional wall-box is said to be about four hours but, interestingly, the XM has no provision for DC fast-charging.

Fuel consumption (combined cycle) is an EV-typical 2.7 litres per 100km, which equates to a low 61g/km of CO2.

Once you’ve depleted the battery on a highway journey, expect the petrol V8 to consumer somewhere between eight and nine litres per 100km at cruising speed.

Using EV mode means zero-emission operation but, as with any electric car, how the power is generated to recharge it determines its real-world green-ness.

Despite all the extra power, thanks to the mild-hybrid system it’s more fuel efficient and produces less emissions than the old 5.0-litre V8.

Still, it’s all relative, and as you’d expect from a twin-turbo V8 SUV it’s still thirsty and uses 11.7-12.5-litres per 100km, based on European specifications.

The mild hybrid system uses a crank-integrated starter generator instead of a conventional alternator, providing a boost of up to 20kW and 175Nm of electrical power when needed, with the energy captured during braking and stored in a 48-volt lithium-ion battery.

While any M car is supposed to be rapid and dynamic, it’s also true that the over-arching perception of big SUVs is that they’re comfortable and plush. None of which explains the ride in the XM.

Regardless of how you fiddle with the settings, the ride is always brittle. Those big tyres with their minimal sidewall somehow manage to find every crack and join in the road, and it’s these sharp-edged imperfections that thump through to the cabin the most vocally.

It’s enough to make you wonder who this car is going to appeal to. Will it take to race tracks? Almost certainly not. So the whole point of these suspension settings might be a bit lost on some people.

Performance, meanwhile, is insanely rapid for something that could pass as a bulk carrier. The biggest giveaway to the mass is the transmission’s earnest attempts to keep everything moving by feeling a bit hyperactive on downshifts.

Using the ratios is always going to be the strategy, but with all that torque, maybe it’d be nice sometimes for the trans to hang on to a taller gear and let the boost blow it towards the next corner.

The sound track? Polarising. Even if it doesn’t convince you that Hans Zimmer (who developed the various electronically-synthesised noises the XM makes) should stick to winning Oscars, the augmented sounds are background noise rather than the main event here.

Even the petrol V8’s naturally stirring backing vocals have been electronically tweaked with debatable results.

That said, it’s nice to have something to listen to that isn’t the insistent tyre roar which becomes even louder on coarse-chip surfaces.

Steering effort is light but there’s not a lot of feedback in terms of actual feel. In fact, it’s borderline detached and only the sheer speed of the rack confers any athleticism.

Also, the rear steering seems to come in a few milli-seconds after the front has started to turn. And for all that all-wheel-steering agility, this is never a car that shrinks around you.

Before driving the Sport SV you need to understand its highly complex suspension system that allows it to be so dynamically capable. Range Rover calls it a '6D Dynamic' system, because it can control the car left and right, up and down and corner to corner. 

To achieve this the system uses a combination of hydraulic interlinked dampers, height-adjustable air springs and pitch control, which makes it a semi-active suspension set-up similar to the set-up Formula 1 race cars used to boast. 

This allows the Sport SV to sit between 10-25mm lower than the other Sport models and with its clever suspension can actually sit flatter in the corner with less pitch and roll - which is the traditional enemy of high-riding SUVs when it comes to handling.

But the suspension is only part of the story, with the intelligent all-wheel drive, rear-wheel steering, torque vectoring and the active locking rear diff all combining to produce an SUV with incredibly impressive dynamic capability.

Put simply, there’s never been a Range Rover that deserved to be driven on a racetrack. The Sport SV changes that, and thankfully the company let us loose on the challenging Portimao circuit in Portugal to put the SV through its paces.

Range Rover management was quick to stress it doesn’t expect the Sport SV to be a race track regular for its owners, but driving it on track did highlight the extreme potential it offers. 

With such a powerful engine it should come as no surprise that the Sport SV hauled down the straight, hitting 233km/h at the end of the long front straight, but with speed still rising which suggests its 290km/h claimed top speed is accurate.

Even from those speeds and with 2560kg of SUV to slow down, with the carbon ceramic brakes it was no trouble whatsoever. Instead the braking was strong and consistent across multiple laps. 

The steering is the particular highlight, with the rear-wheel steering helping to turn the Sport SV sharper and more quickly than a big SUV like this should. 

But while it impressed on the circuit, we also experienced it on some great winding rural roads across Portugal and this is where it shone even more brightly.

This is an SUV that you’ll genuinely enjoy driving with its ability to carve through corners and blast down anything resembling straight road.

But to ensure it lives up to the Land Rover badge on the front, we also drove it off-road. Nothing too serious at first, just muddy ruts, across some water and over some rocks.

But then we were guided through a course that showed off its articulation potential, which is far greater than the average owner will ever need. 

However, to achieve this Range Rover removed the carbon-fibre front splitter, so it’s not the most off-road friendly model the brand offers.

The Sport SV comes generously equipped with safety gear, as you’d expect at this price point. There’s all the usual passive safety, including airbag coverage for all occupants, and plenty of active safety including adaptive cruise control with steering assist, remote park assist and 3D surround cameras - which are used for off-roading as well as parking.

As with the rest of the Range Rover Sport range, it has been awarded a maximum five-star rating from safety agency, ANCAP.

Like a lot of manufacturers, BMW knows consumers can be leery of EV tech when it comes to the cost of battery replacement. So, as well as the five-year/unlimited-kilometre warranty on the whole vehicle, there’s also eight years or 160,000km of cover for the high-voltage battery.

Servicing intervals are based on how the car has been used and it will inform the owner when a service is required.

A servicing package is included in the purchase price and BMW even throws in three years of roadside assistance.

If you’re worrying about servicing costs, you’re probably shopping at the wrong end of the market, but as with the range-topping Range Rover model the price of the car is expected to include servicing for the first five years and roadside assistance for the same period.

It’s also covered by a five-year, unlimited kilometre warranty.

As with all Range Rovers the car will tell you when it needs a service depending on driving conditions. For example, if you hit the track or go off-roading it will likely need a visit quicker than if you're just commuting to and from work.