BMW 7 Series vs BMW 8 Series

What's the difference?

While the new 7 Series won’t visually appeal to everyone, nor is it at the forefront of spirited driving dynamics, it’s hard to argue that it isn’t fit for purpose.

Its rear theatre screen and lounge layout might seem gimmicky at first, but it’s difficult to think of a more comfortable way to be transported on wheels short of putting a chassis under your loungeroom. Even then, you’d have to ask someone for a massage.

This is one of those cases where a car becoming larger isn’t such a bad thing, and BMW should feel like it’s achieved, seemingly, what it set out to do in building an electric limousine that doesn’t fall short in range or dynamics.

If BMW can bring this level of refinement down to its more affordable models, its electric future is looking promising.

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

With dramatic looks, a luxurious spec, and impeccable quality, the BMW M8 Competition Gran Coupe remains supremely well controlled as it delivers eye-widening performance and amazing dynamics. But there’s an ‘edge’ to the experience you need to be ready for. If I was determined to head for the Aussie ‘fast lane’ in a BMW 8 Series Gran Coupe I’d opt for the M850i and pocket a lazy $71K (enough for a cheeky M235i Gran Coupe to add to your collection).

BMW freely calls the new 7 Series “monolithic” in its press material, and it’s hard to argue. The seventh-generation of its luxo limo is bigger in every dimension, and with a higher bonnet and bootlid, the car is convincingly imposing even when parked. Even more so in black.

From the front, the 7 Series clearly has a new face compared to its predecessor, with split headlights now an indicator of BMW’s luxury oriented models - the incoming XM SUV features the same.

Its LED daytime running lights feature Swarovski crystals, while the grille surround illuminates while the vehicle is parked and on. It’s currently unable to be illuminated while driving to comply with Australia’s laws.

It’s perhaps less elegant and more aggressive than previous generations, but that doesn’t mean there won’t be those who approve. It’s certainly emotive, especially when compared to the side and rear of the car.

The side profile of the 7 requires quite a few steps back from the car to really take in - it’s almost 5.4 metres long - though it's hard to hide the size of a car that allows its rear passengers to almost lay down.

From the rear, the 7 Series is probably at its most uninspiring, which is a reverse from the interior where the front feels more minimalistic than some of its rivals like the Mercedes-Benz S-Class.

BMW has used crystalline geometric shapes throughout the cabin, and the front ‘interaction bar’ is perhaps the best example.

In keeping with the minimalism, its screen sits in an almost freestanding style out from the dash, with no physical buttons seen around it.

Want to start a vigorous car enthusiast discussion (more a verbal punch-up)? Simply ask whether a four-door car can be a coupe.

Traditionally, the answer is no, but over time numerous automotive brands have applied that description to cars with more than two doors, including SUVs!

So, here we are. A four-door ‘Gran Coupe’, and the M8 Competition version retains the smoothly tapering turret and frameless side glass that help give selected BMW four-door models the same swoopy, coupe look.

At close to 4.9m long, a fraction over 1.9m wide, and under 1.4m high, the BMW 8 Series Gran Coupe has a firmly planted, low-slung, wide-track stance. Always a subjective call, but I for one, think it looks stunning, especially in our test car’s ‘Frozen Brilliant White’ matt paint finish.

In an era of comically oversized BMW grilles, things are relatively under control here, with a bright black finish applied to that ‘kidney grille’, as well as the huge front bumper air intakes, front splitter, front fender vents, exterior mirrors, window surrounds, 20-inch rims, lip spoiler on the boot, rear valance panel (incorporating a functional diffuser), and quad exhaust tips. The roof’s black, too, but that’s because it’s made of carbon-fibre.

Overall the M8 Competition Gran Coupe is a compelling combination of strong, confident character lines along the bonnet and lower flanks, with tightly wrapped curves following the high hip line, and more organically irregular, yet distinctly BMW shapes in the head- and tail-lights. 

The interior is a beautifully balanced design with a broad centre console sweeping up to the middle of the dash and wrapping around to focus on the driver, in typical BMW fashion.

 The multi-adjustable sports front seats are immaculate, with high-end quilting in the centre section matching a similar treatment in the doors. The dark grey (full) leather trim is offset by carbon and brushed metal trim elements for a cool, calm and focused feel.

Crack the bonnet open and a spectacular ‘BMW M Power’ carbon cover dressing the top of the engine is guaranteed to impress friends and family.

If the word ‘practicality’ brings to mind simplicity, the 7 Series might require you to have a bit of a mental reset. If it means plenty of space and a long list of elements to keep you comfortable, you’d be closer to the money.

While it’s visually restrained in some ways, the space accessible to the driver is thought out reasonably well, as you’d expect from a car costing more than a quarter-million.

The front seats certainly aren’t the main event, but the Merino leather and cashmere wool combination seats are far from uncomfortable, with the heating, cooling, and massage functions accessible from the central multimedia screen.

The controls for those, as well as functions like the climate control, are easily accessible, though could probably be even easier with a physical climate control panel. 

Controls for the individual vents, and even the glovebox are found along the BMW interaction bar, which can (frustratingly) reflect light thanks to its crystalline design, meaning it’s hard to see while driving on a sunny day.

Similarly, while the centre console where the main control dial for BMW’s 'iDrive' isn’t far removed from previous versions, it’s less tactile and requires a look sometimes to see what’s being pressed. Here, too, sunlight can reflect (this time off the dial) and make it more distracting.

Fortunately, the steering wheel controls remain physical buttons, and they’re laid out in a way that previous BMW owners or drivers will find familiar. 

The 7 Series also now leans more heavily on voice activation, so if the lack of physical climate controls or the multimedia screen is a little distracting, much can be achieved by actually asking the car with a “hey, BMW… ”.

There’s a large storage unit in the centre console, as well as two cupholders and a phone charging platform in front of the multimedia controls.

The rear seats, especially the one behind the front passenger, are where the 7 Series begins to feel its worth. If you’re buying one with the intention of being the driver 100 per cent of the time, you’re missing a trick.

The ability for the front passenger seat to shift forward and maximise legroom while the rear seat reclines into a lounge position is nothing new, limousine sedans have been able to do this for years, but the 7 Series takes it to another level.

Not only is there plenty of space for even the tallest of humans to stretch out, but the positioning and angle of the huge 31.3-inch theatre screen is great, even if it impedes the driver’s rear view, and the ability to use it as a touchscreen for some functions means less need for the handy but sometimes fiddly door-mounted control screen.

If you plan on playing games, the controls (and the fact you’re likely in a moving car) can make it a little difficult, but the small control panel is overall easy to use and well-placed.

The cushioned armrest that folds down in place of a middle passenger is comfortable, features a phone charging pad and pop-out cupholders, as well as a storage space under the armrest.

Finally, the boot space in the BMW 7 Series is far from small, with the electric i7 offering 500 litres (VDA) of space, while the 740i boasts 540 litres thanks to its lack of battery.

Of the M8 Competition Gran Coupe’s 4867mm overall length, 2827 of it sits between the front and rear axles, which is a pretty healthy wheelbase for a car this size (and 200mm more than the 8 Series two-door coupe).

Space up front is generous, and one upside of a four-door, rather than two-door coupe, is you’re not struggling quite so much for space to get in and out when parked next to other cars.

Once inside, there’s plenty of storage up front, with a large lidded box/armrest between the front seats, twin cupholders in the centre console, as well as another covered area for wireless phone charging and extra bits and pieces in front of that. Long door pockets provide space for bottles, and the glove box is a decent size. There’s 12V power as well as USB sockets for media connection, with charging outlets in support.

At first glance you’d swear the rear seat was designed as a two-seater only, but when push (literally) comes to shove a centre passenger can squeeze in, legs straddling the rear console.

In terms of legroom, at 183cm (6’0”) I could sit behind the driver’s seat set for my position with knee room to spare, but headroom is another matter, with my noggin making solid contact with the soft Alcantara headlining. It’s the price you pay for this car’s racy profile.

There’s a neatly trimmed storage box and two cupholders in the fold-down centre armrest, plus door pockets with enough room for small bottles. The rear console houses dual climate controls, twin USB power sockets, and a small oddments tray, as well as buttons for the optional rear seat heating fitted to our test car ($900).

The 440-litre boot is a bit like the car itself - long and wide, but not very high. The rear seat split-folds 40/20/40 if you need more space, and the boot lid is automatic with a hands free function. But don’t bother looking for a spare of any description, a tyre repair kit is your only option.

At $349,900, before on-road costs, the BMW M8 Competition Gran Coupe sits in an interesting part of the upper-luxury, high-performance market, the unifying theme being a forced induction V8 engine under the bonnet. 

On price, it lines up almost exactly with Bentley’s twin-turbo Continental GT V8 ($346,268), but that’s a more conventional, two-door coupe. 

If it’s four doors you’re after, some compelling options, within shouting distance of the M8’s price, include the supercharged V8 Jaguar XJR 575 ($309,380), twin-turbo V8 Maserati Quattroporte GTS GranSport ($299,990), and the presidentially powerful and imposing twin-turbo V8 Mercedes-AMG S 63 L ($392,835).

But, arguably, the competitor that lines up best in terms of intent, performance, and personality is Porsche’s Panamera GTS ($366,700). You guessed it, a twin-turbo V8, also designed to prowl the autobahn’s left lane. 

So, in this exalted company you need to bring your quality and features A-game, and the M8 Competition Gran Coupe doesn’t disappoint. 

Running through all the car’s standard equipment would be a tedious exercise, if only for the sheer volume of features, and hopefully, the following highlights package will give you a feel for the level we’re talking about here.

Aside from copious amounts of active and passive safety tech (covered in the Safety section) this brutal Beamer features, four-zone climate control, configurable ambient (interior) lighting, keyless entry and start, ‘Merino’ leather trim covering the seats, doors, dash, M steering wheel, and gearshift, ‘Anthracite’ Alcantara headlining, 20-inch alloy rims, active cruise control, a digital instrument panel, head-up display, and laser headlights.

The electrically-adjustable sports front seats are ventilated and heated, while the leather-trimmed steering wheel, front centre armrest, and even the front door armrests can also be dialled up to a toasty setting.

You can also add a 10.25-inch multimedia display featuring navigation (with real-time traffic updates), Apple CarPlay and Bluetooth connectivity, as well as gesture control and voice recognition. The exterior mirrors are heated, folding, and auto-dimming. The Bang & Olufsen surround sound audio system boasts 16 speakers and digital radio.   

There’s also a digital dash display, panoramic sunroof, rain-sensing wipers, soft-close doors, power sunblinds on the rear, and rear side windows, and a l-o-t more. Even in this price range, that standard fit-out is impressive.

The BMW 740i is powered by a 3.0-litre turbocharged in-line six-cylinder petrol engine, as is the way with many of BMW’s larger cars. It’s also a mild hybrid, incorporating a 48-volt electric starter/motor combination.

The 740i makes 280kW between 5200-6250rpm, and 520Nm between 1850-5000rpm, which is transferred to the rear wheels via an eight-speed automatic transmission.

The electric i7 xDrive60 is the flagship model, with its dual-motor all-wheel drive powertrain good for 400kW and 745Nm, allowing for a claimed 0-100km/h time of 4.7 seconds - 0.7s faster than the 740i.

The M8 Competition is powered by an all-alloy, 4.4-litre twin-turbo V8 engine, featuring direct-injection, as well as the latest version of BMW’s ‘Valvetronic’ variable valve timing and ‘Double-VANOS’ variable camshaft control, to produce 460kW (625hp) at 6000rpm, and 750Nm from 1800-5800rpm.

Designated ‘S63’, the engine’s two twin-scroll turbos are located, along with a cross-bank exhaust manifold, in the engine’s (90-degree) ‘hot vee.’ 

The idea is consistent transmission of exhaust energy to the turbos for improved response, with the reversal of usual practice completed by inlet manifolds positioned on the engine’s outer edges.

Drive goes to all four wheels via an eight-speed ‘M Steptronic’ (torque converter) auto transmission with ‘Drivelogic’, and dedicated oil cooling, as well as BMW’s ‘xDrive’ all-wheel drive system.

The xDrive set-up is built around a central transfer case housing an electronically-controlled, variable multi-plate clutch, with front to rear drive distribution set to a default 40:60 split.

The system monitors multiple inputs including, wheel speed (and slip), acceleration and steering angle, and is able to vary the ratio up to 100 per cent rear thanks to the ‘Active M Differential.’ 

BMW Australia hasn’t yet specified local figures for fuel consumption or energy efficiency for either variant of the 7 Series at the time of our review, but the international specifications for both i7 xDrive60 and 740i give a relatively accurate guide.

BMW claims the electric i7 has a power consumption of between 19.6 and 18.4kWh/100km, which means its 101.7kWh battery allows a range of between 591 and 625km according to the brand.

It’s claimed to charge from 10 per cent to full in less than 5.5 hours with a 22kW AC wallbox, or in 34 minutes to reach 80 per cent using DC fast charging at 195kW.

The petrol powered 740i will use between 7.0 and 8.0 litres per 100km, according to BMW, which equates to between 183 and 159g/km of CO2.

Claimed fuel economy for the combined (ADR 81/02 - urban, extra-urban) cycle is 10.4L/100km, the M8 Competition emitting 239g/km of CO2 in the process.

Despite the standard auto stop/start function, over a week-long combination of city, suburban, and freeway running we recorded a (dash-indicated) average of 15.6L/100km.

Pretty thirsty, but not outrageous when you consider this car’s performance potential, and the fact that (purely for research purposes) we exploited it regularly.

Recommended fuel is 98 RON premium unleaded, and you’ll need 68 litres of it to fill the tank. That equates to a range of 654km in line with the factory claim, and 436km using our real-world number as a guide.

BMW hopes for two things for the new 7 Series: one, that it’s the best car to be driven in, and two, that it’s the best car to drive.

While one of those things could be argued to be true, we suspect there are some engineers in BMW’s M department who would be frustrated at the thought of a more-than 2.6-tonne limo being called better to drive than a car half that size with a manual gearbox.

But, perhaps unsurprisingly, the BMW 7 Series is rather refined from the driver’s seat, especially on roads where the speed limit is high and the corners are long.

The two variants Australia has available, the i7 xDrive60 and the 740i, differ in their drivetrains as mentioned above, and the dynamics of each are slightly different. 

The all-wheel drive electric i7, despite its extra heft (the 740i is almost 600kg lighter) the EV feels more nimble thanks to its immediate torque delivery and higher outputs give it more flexibility in dynamic driving.

The lower centre of gravity, even with the extra weight, helps the electric i7 hold its own against the turbo six-powered 740i.

Both variants come standard with BMW’s rear-wheel steer system, or ‘Integral Active Steering’, which is vital to providing the agility needed for keeping the 7 Series in shape on tight roads, where it tightens the turning circle below 60km/h, though its 3215mm wheelbase does a lot to keep it feeling stable.

Above 60km/h, the rear-wheel steering improves stability further by turning slightly with the front wheels as opposed to against them, allowing for smoother flowing cornering and highway lane changes.

In either case, the 7 Series is easy to drive, with the steering able to be set to Comfort regardless of the drivetrain’s intensity (Sport and Comfort are the only options), which leaves the wheel feeling lighter.

The ride, whether from the front or the back, is impressive, even when being chauffeured through rough backroads. 

The 7 Series, despite not being engineered specifically for Australia’s sometimes shockingly pockmarked roads, manages to soak up impacts before they transfer from the tyre into the seats, and that goes for the sound and road noise, too.

Unfortunately, our launch test drive was hampered by some roadworks out of BMW’s control, so stay tuned for a more in-depth drive soon.

There’s something teutonically symmetrical about the way the M8 Competition Gran Coupe delivers its prodigious thrust.

Peak torque of no less than 750Nm is available from just 1800rpm, remaining on full song across a broad plateau all the way to 5800rpm. Just 200revs later (6000rpm) peak power of 460kW (625hp!) takes over to finish the job, with the rev ceiling sitting just over 7000rpm.

That’s enough to slingshot this 1885kg bruiser from 0-100km/h in 3.2 seconds, which is supercar fast. And the engine and exhaust noise produced by the 4.4-litre twin-turbo V8 during such rapid acceleration is suitably brutal, courtesy of electronically-controlled flaps in the system opening up. 

On a more civilised drive you can reduce the exhaust noise via an ‘M Sound Control’ button on the centre console.

The eight-speed auto is fast and positive, especially in manual mode, which dials up the fun via wheel-mounted paddles. And when it’s time to direct this car’s forward momentum into lateral movement BMW has brought in the engineering heavy artillery.

Despite its frameless door body structure the M8 Competition Gran Coupe feels solid as a rock thanks in no small part to its ‘Carbon Core’ construction, using four primary components - carbon-fibre-reinforced plastic (CFRP), aluminum, high-strength steel, and magnesium.

Then the ‘Adaptive M Suspension Professional’ (with active anti-roll stabilisation), the tricky xDrive continuously variable AWD system, and active M Sport diff combine to keep everything under control.

Suspension is a double wishbone front, five-link rear arrangement, with all key components in alloy to minimise unsprung weight. In concert with the electronic wizardry on-board, it helps keep the M8 buttoned down with only modest body roll in enthusiastic cornering, as the rear-biased AWD system seamlessly distributes drive to the axle and wheels that can make best use of it.

The price you’ll pay for the track-ready tune is in compromised ride comfort. Even in the ‘Comfort’ setting, the M8 Competition is firm, and feels corrugations and imperfections to a surprising degree.

An alignment of the BMW 8 Series planets left me with the keys to this car and the M850i Gran Coupe (also using the Carbon Core body) at the same time, and the difference between their softest settings is appreciable.

Also be aware that at 12.2m the M8 Gran Coupe’s turning circle is substantial, and it’s just as well all that camera, sensor and self-parking tech is available to help you guide this ship into port.

The M8’s electrically-assisted, variable-ratio steering features an ‘M’ specific calibration to deliver satisfying precision and good road feel. But in similar fashion to the ride a noticeable amount of unwelcome feedback comes through to the wheel.

The fat Pirelli P Zero rubber (275/35 fr / 285/35 rr) grips hard, and the monster brakes (ventilated all around, with 395mm rotors and six-piston calipers up front) wash off speed without fuss or fade.

But overall, you’ll have to live with a less refined drive when you sign on for the M8 Competition. Straight away it feels faster but lacks the M850i’s lighter touch. No matter which drive or suspension mode you select, responses are more aggressive and physical.

To fully explore and enjoy the M8 Competition’s abilities it feels like the race circuit is its most appropriate habitat. On the open road, the M850i is all the Gran Coupe you’re going to need.

The BMW M8 Competition Gran Coupe hasn’t been assessed by ANCAP or Euro NCAP, but that doesn’t mean it’s lacking in terms of active and passive safety tech.

As well as expected crash avoidance features like stability and traction controls, this M8 features the ‘Driving Assistant Professional’ suite which incorporates active cruise control (with ‘Stop & Go’ function) and ‘Night Vision’ (with pedestrian recognition).

Also included are AEB (with pedestrian and cyclist detection), ‘Steering and Lane Control Assistant’, ‘Lane Keeping Assistant’ (with active side collision protection”, an ‘Evasion Assistant’, a ‘Crossroads warning’, ‘Wrong-way warning’, as well as front and rear cross traffic alert.

The headlights are ‘Laserlight’ units incorporating ‘BMW Selective Beam’ (with active high-beam control), there’s a tyre pressure indicator, and ‘Dynamic Brake Lights’ to warn those behind of an extreme braking event.

Plus, M8 Competition owners score complimentary enrollment in the BMW Driving Experience Advance 1 and 2 courses.

To help guide your parking efforts there’s a hi-def reversing camera (with panoramic view monitor), rear parking distance control, and ‘Reverse Assist’. But if all else fails the car can park itself anyway (parallel and perpendicular).

If all of that isn’t enough to avoid an impact, you’re protected by 10 airbags (dual front and front side, knee bags for the driver and front seat passenger, as well as side airbags for the second row, and curtain airbags covering both rows).

An automatic emergency call function contacts the BMW call centre for connection to relevant services in the event of a crash. And as has been the case with BMW since the dawn of time, a first-aid kit and warning triangle are on-board. 

BMW offers a five year, unlimited kilometre warranty and that extends to both variants of the 7 Series.

BMW also offers servicing packs for its new cars, though the pricing for each group of models excluded the 7 and 8 Series and its M cars. 

Given the most expensive servicing pack listed is the BMW X7’s $2800 five-year, 80,000km pack, expect anything similar for the 7 Series to cost more.

In terms of when servicing is required, BMWs are condition-based, meaning the car’s own systems detect whether something like an oil change or part replacement is required, and provides that data to your BMW service centre to help calculate an estimate for work needed, ahead of time.

BMW offers a three year/unlimited km warranty, which is at least a couple of years off the mainstream market pace, and lagging other premium players like Mercedes-Benz and Genesis, both sitting at five years/unlimited km.

Roadside assistance is included for the duration of the warranty period, and the standard ‘Concierge Service’ provides everything from flight information, to global weather updates, and restaurant recommendations, from a real human.

Technically, service is ‘condition based’ with the car telling you when it’s time to hit the workshop, but you can use every 12 months/15,000km as a guide.

BMW Australia offers ‘Service Inclusive’ packages that require customers to pre-pay for servicing, allowing the cost to be covered off in finance or leasing packages and reducing the need for concern about paying for maintenance further down the track.

BMW says there are different packages available, from three to 10 years, or between 40,000 and 200,000km.