BMW XM vs Ferrari Roma

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.

The Ferrari Roma is like a trained assassin in a Zegna suit - capable and clinical yet stylish and effortlessly superior. We believe there’s a replacement coming later this year and it will have to be doing well to top this superb machine.

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.

If you’re looking for a flash Fazza with spoilers and vents at all points of the body, you’ve come to the wrong coupe.

The Roma is a subtle, beautifully balanced and delicately detailed two-door inspired by all-time Ferrari classics like the 250 GT Lusso and 275 GTB.

Its proportions are impeccable with complex curves and sweeping lines combining to produce an exquisitely pure shape.

Slimline LED headlights are divided by horizontal DRL strips, the broad bonnet incorporates a quietly muscular power bulge and the minimalist ’egg crate’ grille sits below a sharply chiseled nose.  

I’m a particular fan of the split wedge-shaped tail-lights, seamlessly incorporated into the upper deck of the rounded rear end. The active rear spoiler is also neatly hidden away in the leading edge of the boot lid. No shoutiness here, even the exterior badges are works of art.

Crack open the bonnet and the engine sparkles like a jewel in a display case. Scarlet red crackle finish on the intake plenums and cam covers make it pop like a firecracker. 

The interior follows a dual cockpit theme with twin curved sections divided by a flying buttress style console between them housing the gear selection gate and central media screen.

Flashes of carbon-fibre and chromed alloy add a touch of overt raciness, Alcantara on the dash and doors echoes the ‘mouse fur’ of Ferraris past and the contrast stitching around the cabin is flawless. 

The sleek front seats feel as good as they look, the typography of the Roma badge on the passenger side of the dash is super cool, and overall the interior is snug and ultra classy. 

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.

At close to 4.7m long, the Roma isn’t compact but its supercar stance comes courtesy of a close to 2.0m width and low-riding 1.3m height (with a 2670mm wheelbase).

The cabin is cozy, as intended, but at 183cm I still have ample headroom in the front. The rear is a different story with the two ‘+2’ seats serving as occasional emergency spots only or a handy option for smaller kids.

For storage there are slim but long pockets in the doors, a surprisingly generous glove box, a wireless charging pad under the centre console, phone-size slits on either side of that console, a single cupholder between the front seats with a lidded box (containing 12V and USB-A outlets) behind it.

There’s a recess for oddments on the transmission tunnel between the rear seats, and armrests either side in the back.

The boot holds 272 litres, which is enough for several soft bags, rising to 345 litres with the 50/50 split-folding rear seatbacks lowered. There are tie-down anchors, which is handy but be aware there’s no spare, only a repair/inflator kit.

Overall, not exactly SUV-like in terms of day-to-day practicality but at least on par with its key competitors.

At $453,000 before on-road costs, the Roma Coupe lines up almost directly with a trio of well-credentialled, well-equipped and ultra-fast 2+2 supercars - the Aston Martin DB12 ($455,000), Maserati GranTurismo Trofeo ($450,000) and Porsche 911 GT3 ($446,700). 

If you prefer a roofless experience, the Roma Spider convertible will set you back $520,300 (BOC).

And as you’d expect, the standard features list is impressive; the options list even more so.

Aside from the safety and performance tech covered a little later, highlights include 18-way power front seats, full-grain Frau leather trim, eight-speaker JBL audio (with digital radio), dual zone climate control, an 8.4-inch hi-definition central media display, a 16-inch (highly) configurable instrument cluster, adaptive cruise control and 20-inch forged alloy rims.

There’s also LED exterior lighting (including auto dusk-sensing headlights), Android Auto/Apple CarPlay connectivity, rain-sensing wipers and built-in nav, as well as Alcantara, chromed aluminium and carbon-fibre trim details. There’s more, but you get the idea.

And when it comes to options, the sky’s the limit with the likes of carbon-fibre everything, beefier audio as well as custom colour and trim options available through Ferrari’s ‘Tailor Made’ and ‘Special Equipment’ programs.

One popular addition is an 8.8-inch HD touchscreen for the front passenger (co-pilot?) displaying data on the car’s performance and status as well as allowing selection of music, sat-nav info and climate functions. Super cool and it will set you back $9500.

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.

Enzo Ferrari famously said “aerodynamics are for people who can’t build engines” and notwithstanding the fact the Roma is slippery in the wind tunnel (Cd .30), its front-mid mounted 3.9-litre turbo-petrol V8 engine would surely meet with il Commendatore’s approval.

Sending drive to the rear wheels via an eight-speed dual-clutch auto transmission, this all-alloy, 90-degree unit features dual twin-scroll turbos, a flat plane crank, dry sump lubrication, direct fuel-injection and a single-piece cast exhaust manifold to produce 456kW from 5750rpm to the 7500rpm rev ceiling, and 760Nm from 3000-5750rpm.

Worth noting its 'front-mid' placement as the entire block is positioned low down and behind the front axle centre line.

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.

The Roma’s official (WLTP) fuel consumption figure on the combined (urban/extra-urban) cycle is 11.2L/100km, the 3.9-litre turbo-petrol V8 emitting 255g/km of CO2 in the process.

Not exactly miserly, but even with that engine begging to be revved we saw an average of 12.9L/100 over a combination of urban shuffling, twisting B-roads and some freeway running.

A start/stop function is standard and with an 80-litre fuel tank on board, the Roma’s theoretical range is around 715km, dropping to approximately 620km using our real-world number.

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.

Press the PS (Partenza Sportiva) button on the console, slip the manettino control on the steering wheel into ‘Race’ mode, left-foot brake (hard) and floor the throttle. Wait for the PS light on the dash, keep the accelerator pinned and lift off the brake.

Ferrari says the Roma will then proceed to accelerate from zero to 100km/h in 3.4 seconds, and in the interests of a thorough assessment I may have found a quiet light commercial area near Maranello, replicated this procedure and validated the claim.

Yes, even at 1570kg, with 760Nm of pulling power available from 3000-5750rpm, the Roma is exceptionally fast in a straight line. And the twin-turbo V8 that’s been so reserved and docile around town lights up to deliver glorious engine noise and a characteristic exhaust howl.

A flat-plane crank arrangement often makes a vee engine lumpier than a more conventional cross-plane design, but it will rev hard and fast, and in this case the compact size of the Roma’s twin turbos enhances throttle response even further.

Speaking of the turbos, variable boost management helps to smooth acceleration while keeping an eye on fuel economy and despite the flat-plane configuration this engine is perfectly civilised.

A tall top (eighth) gear makes for easy cruising but the tight B-roads and lesser highways we spent most time on didn’t allow for any high autostrada speeds.

But how’s this for a flex? Ferrari says the active rear spoiler will stay in its low-drag position until the car hits 100km/h, then pushing through medium and high drag (135-degree) positions as speed rises. But… “over 300 km/h, the spoiler is always in MD mode because in such conditions it is preferable to have a more balanced car”.

Suspension is by double wishbones at the front with a multi-link set-up at the rear and twin solenoid (magnetic) adaptive dampers all around.

Rubber wrapping the 20-inch forged alloys is top-end Michelin Pilot Sport 4 S (245/35 fr / 285/35 rr) and front-to-rear weight distribution is 50/50.

What that all adds up to is a comfortable, responsive and deeply satisfying drive experience. In standard Ferrari fashion the dual-clutch transmission is rapid-fire perfection, the steering is light but accurate and feelsome, while the in-cabin ergonomics are superb.

Push as hard as you dare in tight, flowing corners and the car just continues to grip and bait you to try harder. And if you do give in and start to run out of talent the ‘Active Yaw Control’ and limited-slip ’E-diff’ will step in to imperceptibly save your bacon.

Moving the manettino through its five positions - ‘Wet’, ‘Comfort’, ‘Sport’, ‘Race’ & ‘ESC-Off’ rapidly transforms levels of ride comfort, steering, transmission and engine response. You can also set the ride to Comfort with other attributes dialled up to 11 for a cross-country sweet spot. 

And when it comes to slowing rather than going, the Brembo brake set-up is circuit ready with vented carbon ceramic rotors all around (390mm fr / 360mm rr) clamped by six-piston calipers at the front and four-piston units at the rear. They take a while to warm up, but never feel anything other than mega. 

No surprise, ANCAP and Euro NCAP have not assessed the Roma, but you could mount a solid case that the car’s high-level dynamic ability is its greatest active (crash avoidance) safety system. 

Over and above that there are the usual anti-lock brake, traction and stability control systems (the latter is Ferrari’s adjustable SSC ‘Side Slip Control’) as well as AEB (with vehicle and cyclist detection), adaptive cruise control, lane-keeping assist, lane departure warning, blind-spot monitoring and traffic sign recognition plus front and rear parking sensors.

Also worth calling out ‘FDE’ (Ferrari Dynamic Enhancer) which works in parallel with the SSC to help modulate lateral movement in extreme circumstances.

If a crash is unavoidable there are four airbags - dual front and dual side front (head). That’s an acceptable count in a 2+2 coupe, but it would be nice to see a front centre bag.

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.

As the name implies, Ferrari’s ‘7-Year Genuine Maintenance’ program means you won’t have to worry about servicing costs for the first seven years of ownership. Everything from labour and parts to lubricants and brake fluid is included in the free-of-charge package.

For reference, maintenance is recommended every 12 months/20,000km, which is a healthy distance and roadside assistance is complimentary for the first 12 months. 

Warranty cover is three years/unlimited kilometres, which trails the mainstream market but matches high-end competitors like Aston Martin, Lamborghini, McLaren and Porsche.