Bentley Continental vs BMW 6 Series

What's the difference?

It may not come cheap, isn’t ideal for family buyers and will have you visiting the petrol bowser regularly, but it’s still hard not to love the Continental GT.

It’s an over-the-top car in so many ways, from the dramatic styling to the plush and pampering interior to the effortlessly powerful engine, this is a car that is a pleasure to drive 10km or 10,000km.

It’s certainly not cheap, especially if you start diving into the options list, or the even more costly Mulliner program, but price is relative, of course, and for Bentley buyers purchasing one of these cars isn’t about getting a ‘bargain’ but instead it’s about experiencing the finer things in life.

This isn't a car for everyone's tastes, but if you fit in to the buyer group that just doesn't really know what they want in a luxury car, it could be the perfect fit for your family. The 6 Series GT is a practical large prestige car, albeit one that will likely find very few buyers.

The most interesting aspect of the third-generation Continental GT design is how similar it looks to the first-generation model launched 20 years ago.

Put the pair side-by-side and you’ll notice the latest model is more refined and features crisper lines and more intricate details, but the overall shape and design themes, such as the grille, headlights, etc, bare a similar family resemblance.

This is a deliberate act from Bentley, choosing an evolutionary styling approach for the Continental GT in the same way Porsche has approached the 911.

As for the specific details of this particular Continental GT S model, there are some key differences between it and the standard GT and GT Azure models that sit beneath it in the range. 

The most notable - even if it is slightly harder to spot on our black test car - is a ‘black pack’ that swaps all the chrome finishes on the exterior to black.

This includes the grille, headlight surrounds, lower bumper grille, window surrounds, door mirror caps and the exhaust tips. The S also adds black sports sills and black-painted alloy wheels.

There is no denying the 6 Series GT looks better than the old 5 Series GT. It isn't as frumpy, it looks more sporty, and to me it appears to have grown into its identity with more conviction than its predecessor.

That said, I don't necessarily like the look very much - it's a bit like a BMW X6 that has been rounded off a little and lowered down substantially. But I can appreciate some of the finer design aesthetics that it offers up: the frameless windows are a nice touch, and the swooping roofline looks smoother than a duck's back.

Other things like the active grille shutters and the air breathers ahead of the front doors are nice functional touches, and to my eye it lives up to BMW's hope of it looking "smooth but muscular". You can get the 630i with either the M Sport package, like you see here, or the more sedate Luxury Line, which is, well, more luxurious looking.

The M Sport styling and equipment package you see in the images here - with M aero kit and 19-inch wheels (ours had been upgraded to optional 20s) - help out with the athletic look of this very big vehicle.

It's huge in fact. The length of the 630i is 5091mm long, it measures 1902mm wide and sits at 1538mm tall, with a lengthy 3070mm wheelbase.

All that equates to a lot of room in the cabin, and what a sumptuous and delightful place it is to be - leather, wood and plush finishes abound.

As mentioned earlier, the Continental GT is a two-door, four-seat grand tourer, but while it’s certainly grand, calling it a four seater may be a stretch.

There are two small seats in the rear that can be used if absolutely necessary but anyone in the back won’t feel like they’re in a luxury car because they’ll be cramped for space - even with the roof down.

You could pop small kids in the back in a pinch (and there is a pair of ISOFIX anchor points) but the Continental GT is hardly a family car.

In fact, the Flying Spur is a four-door sedan built on the same underpinnings as the Continental GT, so Bentley does have family buyers covered.

So, let’s keep our attention on the front seats, which is where you want to be in this grand tourer. The seats are comfortable and offer fantastic support, thanks in large part to 12-way electronic adjustment.

To help you enjoy your convertible with the top down regardless of weather, the seats are heated and available with a vent to blow warm or cool air onto your neck.

The seats are just the start, the whole cabin is a blend of modern technology and classic luxury elements.

There’s the media touchscreen, but there’s also a physical button for most functions, so it’s a busy layout but one that will likely appeal to Bentley’s older clientele.

Our test car was fitted with not only the optional sound system but a rotating display, so you can hide the screen away when you’re not using it.

Overall the build quality and attention-to-detail is exceptional, as you’d expect for a car at this price. And it’s really one of the main reasons you buy a Bentley, because it has a level of luxury and quality above brands like Mercedes-Benz and Porsche.

Now, I said before that this is a bit like an X6, but it has heaps better interior space than that SUV.

As soon as you slide into the driver's seat, you feel like your inside a large car. The cabin space is plentiful, and there's an abundance of storage on offer, too: there's a split-lid armrest between the seats, a pair of cupholders, a phone storage nook with wireless charging, and big door pockets with bottle holsters.

In the back you have access to door pockets, a flip-down armrest with cupholders (that middle part of the seat can fold down completely to allow storage of longer items), and there's excellent room on offer. How many seats in the BMW 6 Series GT? Five - like, five full-size seats.

Because the roofline doesn't rake as sharply as a four-door 'coupe', headroom is excellent for adults (even of the 183cm variety, like myself), and legroom and toe room are equally very good. This is bigger in the back than a 5 Series, but maybe not as plush as a 7 Series… so I guess it makes sense numerically for its nomenclature.

Of course you get climate control in the front (and in the rear if you option it), and the materials are excellent. The media screen is tablet-style, proudly displaying 10.25 inches of high-def real estate that is both touch-capacitive and controllable by way of the central rotary controller with touchpad. And get this - you can even use gestures to control certain elements like volume, swiping and changing tracks… but you have to option that.

The fully digital instrument display is bordered by a set of incomplete dial rings, which is just odd. BMW, back yourself - your buyers can handle just having a digital screen in front of them, particularly when it's as good as this one.

This grandiose hatchback's boot is commodious - with the back seats in place it has a huge 610 litres of cargo capacity, which extends to 1800L with the 40/20/40 seats folded down using the quick release levers in the boot area.

There is no spare wheel (the BMW range is fitted with run-flat tyres) but it does have a secondary hidden storage area under the boot floor for hiding items or stowing wet gear, bathers/swimmers or muddy clothes.

For context, the X6 has 580L seats up, 1525L seats down.

The BMW 6 Series Gran Turismo range starts off with the model tested here, the 630i. It has a list price of $123,500 before on-road costs - and that's whether you buy the M Sport Line or the Luxury Line.

That's quite a lot of money. And while it has a lot of equipment to help justify the cost, the smarter dollars will probably find their way to a more affordable 5 Series.

Standard gear in this spec includes adaptive air suspension with multiple drive modes, a colour head-up display, semi-autonomous parking, adaptive cruise control with steering assistance, auto high-beam LED headlights with LED daytime running lights, DAB+ digital radio, a 16-speaker harman/kardon sound system, a 12.3-inch driver information screen and a 10.25-inch media display with sat nav, Bluetooth and 'BMW ConnectedDrive' online services.

Hey, you even get a panoramic sunroof as standard! Plus there are things like an active rear spoiler, two USB ports and four 12-volt outlets, leather trim, heated front electric seats, electric steering wheel adjustment, keyless entry, push-button start, and an automatic boot.

It also comes loaded with active safety assistance functions - we'll get to that in the safety section below.

Things it's missing at this price point? Well, heated seats are an option, but bundled nicely into the 'Comfort Package' ($3000) which was fitted to our car. The pack includes heated seats front and rear, quad-zone climate control, electric sunblinds for the rear side windows, and electric seat back adjustment. Oh, and BMW continues to gouge consumers $623 for Apple CarPlay (which seemingly didn't work in our car).

The only other 6 Series GT model available is the 640i xDrive, which is again available with the choice of M Sport or Luxury body styling. It's also pretty exxy, with a list price of $148,900, but gets a more performance-focused drivetrain, as well as extra equipment: essentially the Comfort package, plus vented front seats, interior fragrance (eight options), memory settings for the front seats, 20-inch wheels and metallic paint.

Plus the 640i has Sport+ settings - it's probably the wrong car for those - and 'Integral Active Steering' to couple with the all-wheel drive system.

Bentley is renowned for its big, powerful engines, specifically its unique W12. That’s available in the top-of-the-range Continental GT, but the S model we’re driving is motivated by a 4.0-litre twin-turbo V8.

It may not be what Bentley is famous for, but it’s a fantastic engine in its own right and it’s paired to a well-matched eight-speed automatic transmission and an active all-wheel drive system.

Making a very healthy 404kW and 770Nm it has no trouble getting such a big car moving.

Bentley claims the Continental GT S will run 0-100km/h in just 4.1 seconds, which is very rapid and particularly impressive when you realise this car weighs 2335kg.

Under the bonnet of the 630i is a 2.0-litre four-cylinder turbocharged petrol engine, which produces 190kW of power (at 6500rpm) and 400Nm of torque (from 1550-4400rpm). It uses an eight-speed automatic transmission, and is rear-wheel drive.

That may not seem a lot considering the size of this machine, but consider that some of the steamiest four-cylinder hot hatches have nearly the same outputs, and you realise this engine offers up a far-from slouched approach to propulsion.

The 640i xDrive has a 3.0-litre six-cylinder turbocharged engine with 250kW of power and 450Nm of torque. It gets the same eight-speed auto, but as the xDrive naming indicates, it's all-wheel drive.

But this is the one you'd prefer if you want to hit highway speed in a hurry - the 0-100km/h claim is 5.3 seconds, where the 630i takes a full second longer (6.3sec) according to the company.

If you’re looking for a fuel efficient car or are worried about the price of premium unleaded at your local service station, the Continental GT is not for you.

In an entirely unsurprising way, this two-tonne, twin-turbo V8 luxury car is not a fuel-sipping proposition.

Even the official combined urban/highway cycle is 12.5 litres per 100km, which is thirsty.

But if you’re spending most of your time around town, rather than driving to your country weekender, you’ll probably be looking at returns in the mid to high teens, based on our experience.

We saw an average of 16.7L/100km on the car’s long-term trip computer that included more than 1400km of driving.

Fortunately it has a 90-litre tank, which translates to a theoretical driving range of 720km - as long as you can hit the official claim.

BMW claims fuel use of 7.0 litres per 100 kilometres, and you'll need to use 95RON premium unleaded when you fill up.

On my trip with the car, I saw about 9.0L/100km across mostly high-speed driving - some freeway, some highway, some country back road touring, and quite a bit of corners and city stuff thrown in as well. I think that's pretty respectable.

What wasn't so great was the lack of premium fuel in some of the 'away from civilisation' places on my route home. Keep that in mind if planning your own GT long-distance cruise.

There’s a duality to the driving experience of the Continental GT, as it manages to blend its obvious luxury focus with a genuinely dynamic edge that makes it a true grand tourer.

The combination of the powerful engine and air suspension means it possesses a laid back personality and effortless nature around town.

The engine delivers its performance with ease, moving this big car rapidly whenever you put your foot down, so you can jump into gaps in traffic or make a brisk getaway from the lights.

It soaks up all the bumps and imperfections on the road with minimal fuss, too, despite our test car riding on 22-inch wheels, so you feel cosseted inside the plush cabin.

However, if you find yourself on the open road, the Continental GT S is equally at home.

Dial up the ‘Sport’ drive mode and the engine feels more responsive, the steering is more direct and the suspension is more taut but still compliant.

It makes this a really fun car to drive on a fast, sweeping rural road, where you can let the engine stretch its legs.

Because of its size it’s not as enjoyable on a twisty road with lots of changes of direction, though.

But for enjoying an opulent daily commute or a weekend drive in the countryside the Continental GT S is a great companion.

I'll put this out there - if you like to drive, there are BMW models for less than this one that will put a much bigger smile on your face. Like, a 440i Gran Coupe, or even just a 330i sedan…

But if you're in BMW's target market - that being older executive buyers who want space and luxury as a priority over thrills at the wheel, you could do a lot worse.

That's because the 6 Series GT lopes along the highway without fuss - the engine easily coping with the demands of overtaking moves, the adjustable drive modes allowing a light steering and wafting suspension feel to wile away the kilometres.

There are 'Comfort' and 'Comfort Plus' modes, but the latter is a bit too spongy and can be boaty feeling. The Comfort setting is made for the highway.

It is actually pretty agile for its dimensions.

If you decide to deviate from the straight sections, you'll be able to explore a little bit of dynamic range, especially when you dial up the 'Sport' mode, which changes the damper settings, steering weight, throttle and transmission response, and even the digital dials in front of the driver to a more aggressive look.

Our car had the 'Integral Active Steering' setting, which is a variable ratio steering system that includes rear steering - that essentially helps make is more turnable in corners at highway speed, and easier to park at lower speeds. It's difficult to say whether the assistance is excellent or not short of driving a car without the tech, but to this tester it was hard to hide the size and weight (1835kg kerb weight) of the vehicle.

That isn't to say it's clumsy or lumbering - it is actually pretty agile for its dimensions, though it makes a lot more sense on long drives and coastal cruises than it does in the narrow and twisty alpine roads of the Snowy Mountains Highway that I tested it on.

There's good grip from the tyres, and strong response from the powertrain - but if it were my money, and I had to have a 6 Series for whatever reason, I'd be looking towards the 640i model, which has a thumping six-cylinder with 250kW/450Nm - certainly an engine that would be more at home in this car. Plus that model comes with AWD.

The BMW 6 Series GT range has a five-star Euro NCAP crash test score based on 2017 testing, but it hasn't been scored by ANCAP.

There's the usual array of airbags - dual front, front side, full-length curtain and driver's knee airbags are included, plus parking sensors all around, and heaps of safety tech including the 'Driving Assistant Plus' package with lane departure warning and lane keeping assist, forward collision warning, auto emergency braking (AEB) front and rear, blind-spot monitoring and rear cross-traffic alert, and adaptive cruise control with stop and go.

That's all great stuff, and so is the 360-degree camera system with adaptive display - so, if you're reversing and you turn the wheel to one side, the image on screen will move, too. It'll also go between a birds-eye view and a backing-up perspective, and that can take some getting used to.

What was less convincing in terms of the user experience was the rear auto braking, which seemed to be scared of the car's own shadow. On multiple occasions the car jammed on the brakes when reversing out of driveways on to empty streets - be it in the normal height, or the raised height setting.

The 6 Series GT has dual ISOFIX anchor points and three top-tether points are there and ready for baby seats or child seats.

Another surprising feature of the Bentley range is the company’s three-year, unlimited kilometre warranty, which feels surprisingly short in this day and age - especially for a brand that takes pride in its carefully built cars.

There is a 10-year warranty available as an optional extra, but it feels like that should be standard if the company is willing to stand by its products anyway and owners are paying such a premium for their cars upfront. 

The good news is all Bentley models are covered by a five-year servicing plan (intervals are 12 months/16,000km) which is included in the cost of the car.

As you should expect from such 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.

BMW runs a condition-based servicing plan, which means the car will tell you when it needs servicing. But you can rest assured it won't (theoretically) cost you much, with the brand's 'Service Inclusive' pack. It covers you for basic maintenance as and when required for five years/80,000km. According to BMW, that includes "annual vehicle checks, oil changes, all filters, spark plugs and labour costs for the duration of the package".

BMW offers a three-year/unlimited kilometre warranty plan, and you get the same cover for roadside assistance.