Bentley Flying Spur vs BMW Alpina B7

What's the difference?

There are two schools of thought when it comes to plug-in hybrids like the Flying Spur. Some people believe they provide the best of both worlds, combining elements of an EV and ICE vehicle. Others believe it’s a compromise, which requires you to carry around an electric motor and batteries you may not use much of the time.

The truth is the value of a PHEV will largely depend on how you use it. If you have a short commute and access to regular charging then it should work well for your needs, but if you need to drive longer distances and won’t charge it regularly it doesn’t make sense.

What isn’t up for debate, though, is how luxurious and premium the Flying Spur is. Sure, there are some surprisingly non-standard items that require you to spend above and beyond the already sizeable asking price, but if you do you’ll be rewarded with a car that is opulent and efficient.

The BMW Alpina B7 is a special car destined (like all Alpinas) to be a collector's item, due to its rarity and exclusivity. I asked Alpina just how many current model B7s there are in Australia and the answer was "less than five", which is just as mysterious as most people find the car in general.

The B7 is fast – too fast to enjoy legally on Australian roads – but it is also supremely comfortable and well appointed. For Alpina fans lucky enough to be driven in on,e this would make for a truly rare and niche way to be chauffeured.

Bentley isn’t exactly targeting a youthful audience with this car so there’s a, shall we say, traditional design aesthetic to the Flying Spur. This is a car that’s meant to ooze sophistication and luxury and it does that with its appearance.

From the signature Bentley grille, glistening in shiny chrome, to the intricate, jewel-like detail of the headlights, through the carefully sculpted flanks and to the tapered tail the Flying Spur is all about old-school luxury.

But there are some nice modern touches, highlighted by the ‘Flying B’ bonnet mascot, which not only can retract for improved safety, but at night it illuminates when you unlock the car, lending that touch of luxury that tells you that this is a step above most rivals.

This is a good place to start because the B7 looks just like the 750Li it's based on, until you see the first tell-tale signs that it's not one.

There's the front wing with Alpina lettering and the boot-top spoiler, the graphics, which run the length of the car, and the 20-spoke wheels with Alpina badging.

This is late '70s, early '80s styling at its best (and possibly worst), but these special cars can pull off the irony-free look because this is how Alpina BMWs have rolled since 1975, when the E21 320-based Alpina A1/3 was launched.

BMW badges have been left on the bonnet and boot, but there's Alpina B7 BiTurbo lettering in place of the 7 Series identifier.

Most people walked by it in the street thinking it was just a big BMW, others scratched their heads wondering what I'd done to my big German limo and a handful almost dropped to their knees in praise and wonderment at spotting a rare beast like this in the wild.

These people all had their own Alpina stories – one was the third generation of an Alpina-owning family. You become a member a small and passionate club when you buy into this rarefied brand.

The standard B7's cabin is close to identical to the luxurious interior of the 750Li, save for Alpina-embossed stitching in the headrests of the soft, leather seats, the virtual instrument cluster and the Alpina plaque on the centre console denoting the build number.

The B7 is long, low and wide at just under 5.3m end to end, 1.5m tall and 1.9m across. A 3.2m wheelbase means cabin room is more than just spacious.

The B7 rolls off the Dingolfing production line in Germany and is then handed over to Alpina's facility in Buckle, where significant changes take place. Read on to find out how the B7 is different from a regular 750Li.

Not surprisingly, there’s generous room inside this modern limousine. The Flying Spur is one of those cars you’d enjoy being driven in, arguably even more than driving.

But before we talk about the back seat accommodations, let’s start in the driver’s seat.

The front of the cabin is another display of traditional luxury with a blend of modern technology. There is a veritable smorgasbord of premium materials - fine leather, bright metals and genuine wood veneers. 

The steering wheel is thick and wrapped in very nice leather so it feels great, as does the supple hide that covers the soft but supportive seat.

In front of the driver is a digital dashboard but the graphics are traditional round dials for the speedo and tacho, with a central area for other key information, such as the use of the hybrid system.

For the trained eye there are some giveaways that Bentley is part of the Volkswagen Group, the way some of the graphics are presented, some of the switchgear and other small elements - but nothing overt.

Space in the rear is very good, with more-than-adequate head, knee and legroom, but it’s not expansive as you’ll find in an extended-wheelbase vehicle, like its Bentayga SUV sibling.

Still, those in the rear are well looked after, elevating the Flying Spur beyond what you’ll typically find in a ‘luxury car’ - like those from the ‘big three’ German brands.

There are pillow-like headrests, for example, as well as plenty more premium materials and leather-lined surfaces.

But, again, a lot of the items fitted to our test car were cost options, such as the panoramic sunroof, rear window sun blinds and vanity mirrors that flip down from the ceiling.

Boot space is another surprising element of the Flying Spur, because despite the overall size of the car, it measures just 351 litres. For comparison, the Toyota Corolla sedan has a 470-litre boot.

It’s oddly shaped too, with space lost to the wheel arches and other hidden hardware, with even more room given up for the large charging cable bag.

The B7 is a five-seater limousine although with the fold-down rear centre armrest which houses the media control panel the back is really set up to carry two.

That 3.2m wheelbase means cabin space is enormous. At 191cm tall I can sit behind my driving position with about 30cm between my knees and the seatback. Those rear doors open wide and the entrance is huge, making entry and exit almost as easy as just walking through a doorway. The air suspension also rises and lowers the B7's ride height for better access.

Storage is excellent, with two cupholders and door pockets for rear passengers, along with the area inside the centre armrest.

Up front, the driver and co-pilot have a deep centre console storage bin with split-opening lid, two cupholders and door pockets.

Luggage space is good, with a 515-litre boot.

The B7 lists for $389,955, while a 750li is about $319,000. At this level, $70K seems like a downright reasonable premium to pay for a faster, more powerful, better handling and comfier version of the 750Li.

In this case you're paying more but getting more, although standard features are close to identical. There's adaptive LED headlights, head-up display, night vision with pedestrian detection, a 10.25-inch touch screen up front and two screens in the second row for TV and other media functions.

There's a reversing camera, sat nav, harman/kardon surround stereo and Apple CarPlay. There's leather upholstery, seat massagers in the front and rear, four-zone climate control, heated and ventilated front and rear seats, front and rear parking sensors, auto tailgate, sunblinds for the rear and rear-side windows and proximity key.

The safety features are listed in the section below, and that list is also impressive.

Rivals to the B7 include the Mercedes-AMG S63, which lists for $375,000, the $331,700 Audi S8 and even the Bentley Flying Spur, which almost matches its price at $389,500.

This is obviously the centrepiece of the Flying Spur Hybrid and under the bonnet you’ll find a 2.9-litre twin-turbocharged V6 petrol engine paired with an electric motor and 18kWh lithium-ion battery.

The petrol engine makes 306kW/550Nm on its own, with the electric motor good for 100kW/400Nm and combined Bentley claims the powertrain produces 400kW/750Nm.

That power is sent to all four wheels via an eight-speed dual-clutch auto transmission.

Bentley claims the Flying Spur Hybrid is quick, as well as efficient, sprinting from 0-100km/h in just 4.3 seconds, with top speed rated at 285km/h.

Alpina takes the 4.4-litre twin turbo V8 from the BMW 750Li and rebuilds the engine by hand. Alpina fits its own turbochargers, air-intake set -up, high-capacity cooling system and Akrapovic quad exhaust. Output is 447kW and 800Nm – an increase of a whopping 117kW and 150Nm over the 750Li's grunt.

It's interesting to note that the V12-powered 760Li has a smidge more power, at 448kW, and the same torque output as the B7.

How fast is the B7? Supercar fast – the B7 has a top speed of 330km/h, which will see it outrun a McLaren 570 and almost keep up with a Ferrari F12. That's quite incredible for a 2.3-tonne limousine with three TVs on board. A 0-100km/h time of 4.2 seconds is also hugely impressive.

In comparison, a 750Li has a 0-100km/h time of a not-too-shabby 4.7 seconds, but the car is electronically limited to 250km/h.

An eight-speed automatic transmission shifts gears smoothly, although a little slowly in Normal mode, while Sport and Sport+ add urgency and harder shifts.

Finally, the B7 is all-wheel drive, and those rear wheels are designed to steer slightly for better cornering performance.

Fuel consumption and electric driving range are always tricky to judge with plug-in hybrids. The official testing cycle favours the combination of electric and petrol power resulting in an official combined cycle figure that’s difficult to hit in the real world.

As was the case with the Flying Spur Hybrid, which has claimed figures of 3.3L/100km, but we could only reach 6.5L/100km during our time in the car.

To be fair, less than 7.0L/100km for such a big, heavy and powerful car is still an impressive return, but it’s well short of the claim.

In terms of electric-only range and the energy consumption of the battery, Bentley claims an EV driving range of 40km, which we also found hard to manage during our test drive. 

The claimed energy use of 9.2kWh/100km is optimistic, though, with the car’s computer telling us it was actually 22.3kWh/100km.

Overall, Bentley claims the Flying Spur Hybrid has a maximum driving range of 804km thanks to the combination of electric and petrol power. 

The B7 is probably not the car to own if you're concerned about either fuel prices or emissions, but then the twin-turbo V8 may not be as thirsty as you'd think, with Alpina stating that, after a combination of urban and open-road driving, you should only use 9.6L/100km.

My time in the B7 saw me double that usage but this could have had something to do with me turning off the stop-start system and driving in Sport mode constantly.

Climbing aboard and closing the heavy door with a thud, the Flying Spur feels isolated from the outside world before you’ve even turned the powertrain on. It adds that feeling of luxury and refinements that few other cars - and certainly few sedans - can claim these days.

Before you start driving you can select which version of the powertrain you’d like to use, with the ability to switch to all-electric power, a combination of petrol and electric or biased towards petrol to charge the battery.

In hybrid mode the Flying Spur manages which element of the powertrain it uses, typically using the electric motor to get you off the mark and boost performance on the move but allowing the petrol engine to do most of the heavy lifting.

Regardless of the details, it certainly provides the performance you expect from a car like a Bentley. It has the kind of effortless performance that means, despite its size, it never labours or struggles to close a gap or burst forward with urgency.

However, it’s electric mode that seems to fit the nature of the Bentley best - quiet, refined and powerful. Which makes sense.

Electric motors are so well suited to luxury cars that it's no surprise Bentley has committed to going all-electric by the end of the decade.

It’s a shame, then, that the 40km of range runs out quicker than expected and leaves you leaning on the petrol engine again.

Who on Earth thinks a BMW 750Li isn't fast enough or comfortable enough, even with all its horsepower, luxurious cabin and technology? Alpina, that's who.

Redevelopment of the 4.4-litre V8 with new turbochargers, a high-capacity cooling system, different air suspension set-up and an exhaust system made by Akrapovic have made this already exceptional car better. Better to drive and better to be driven in.

The ride, even on those 21-inch wheels and low-profile Michelin Pilot Super Sport tyres (255/35 ZR21 on the front and 295/30 ZR 21 on the rear) is incredibly comfortable. I drove it and also had a chance to recline in the back and be chauffeured (by our photographer) and the ride was so composed and refined it was hard to believe I was travelling along some truly awful urban roads with their cracked and pot-holed surfaces.

And it's quiet, too. Which will suit those in the back being transported swiftly from the airport to their next meeting, but if you're after a loud and angry exhaust note then you won't find it in the B7. Sure, from the outside at full throttle the B7 has a menacing growl, but this isn't a BMW M car that will bark and snarl. 
See, while BMW's M division makes brutal, loud, high-performance versions of their regular cars, Alpina makes comfortable, stealthy, high-performance ones.

All-wheel drive provides fantastic traction and ensures that grunt doesn't just tear the tyres off those rims when you sneeze on the throttle.

And while the air-suspension is soft and comfortable, adaptive dampers adjust for when the road goes twisty, providing impressive handling for a heavy and long car.

Really, though, the B7 is built for long, endless stretches of roads, and the acceleration beyond 100km/h is almost as startling as that from 0-100km/h, as it wants to push straight past 200km/h towards that 330km/h top speed.

Which, unless you know a good lawyer or happen to be one, will send you straight to jail. Yes, the B7 is probably too much car for Australian roads. Only on a German autobahn would a B7 be fully at home.

I felt like I was given a Melbourne Cup-winning racehorse for a week but could only ride it in my suburban backyard.

The Alpina B7 comes with all of the BMW 750Li's safety equipment – this includes AEB, lane-keeping assistance and lane-departure warning, blind-spot warning, active cruise control, night vision with object recognition, auto parking and surround view camera.

Along with the suite of airbags, there's traction and stability control and ABS, as you'd expect.

The 750Li and B7 have not been given an ANCAP score.

Another surprising element of the Bentley ownership experience is the relatively short warranty, at least by modern standards.

Like every other model in the range, it’s only covered for three years (but unlimited kilometres), which is short of the five years most other brands offer, and curious given the high standard to which these cars are built. 

However, the Flying Spur Hybrid is covered by a five-year servicing plan - with 12 months/16,000km intervals - which is included in the cost of the car.

Befitting Bentley’s status as a premium brand, the local dealer will arrange to collect and return the car when servicing is required, and a loan car can be arranged if required so the owner isn’t inconvenienced.

The B7 is covered by BMW's three-year, unlimited-kilometre warranty. Servicing is recommended every 12 months or 15,000km. The B7 is covered by BMW special vehicles servicing plan, which means services are cost-free for the first three years of the car's life.