BMW 6 Series vs Jaguar XF

What's the difference?

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.

With that iron fist wrapped in a velvet glove wrapped in bubble wrap engine, excellent ride and gorgeous looks, the XF Sportbrake ticks all the boxes. Apart from the entry price and options prices, there are few objective reasons not to buy the car. It's just as good as any of its German competition and arguably the prettiest of the lot.

Should Jaguar have taken the dive? Given the XF Sportbrake is a luxury wagon done right, yes.

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.

The second-generation XF is a very pretty car. A few carmakers have a had a crack at that four-door coupe idea, but Jaguar's Ian Callum got it right first go. You might expect the wagon to be a bit dumpy but it's far from it. That's not to say wagons can't be good looking - many are better-looking than the car they're based on (the weirdly proportioned Golf wagon being the exception to the rule). The XF sedan just looks right.

Anyway, the Sportbrake is basically the same until behind the B-pillar, with the roof continuing on to steeply raked tailgate glass. Obviously the lights are different back there but it's a nicely integrated job, it doesn't look like a dodgy extension. Rolling on the optional 20-inch wheels it looks amazing - low, long and well-proportioned. Unfortunately, it's more than vaguely hearse-like in black (the only First Edition colour).

Inside is standard XF, with the obvious exception of the rear seats and the big open load area. With this First Edition's glass roof the cabin seems infinite. Either way it's big and comfortable, although fit and finish could be a bit tighter.

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.

Front and rear passengers enjoy plenty of space. Storage includes a not-quite-big-enough-for-a-phone tray ahead of the rotary dial gear selector and a pair of cupholders. Those in the rear have plenty of space, except for the middle seat occupant who must straddle a stout transmission tunnel. The rear armrest holds a pair of cupholders and the doors have slim pockets.

The boot holds 565 litres with the seats in place and "up to" 1700 litres with the seats down - that latter figure does not feel like a VDA number.

Over the years the XF has edged its way upmarket and is now playing with the Germans in the big luxury segment. And as is now customary for Jaguar, the Sportbrake is available in First Edition guise. First Editions are available for a model's first year of production and are usually based on the top-spec (in the Sportbrake's case, that's the 30d S) with a few extra bits and pieces to make things interesting.

While the 30d S retails for $123,450, the FE weighs in at $137,300. For that you'll waft out of the showroom with 19-inch alloys, dual-zone climate control, a huge panoramic glass roof with gesture-activated roof blind, around-view camera, front and rear parking sensors, 11-speaker Meridian-branded stereo with DAB, sat nav, head-up display, electric gesture-activated tailgate, keyless entry and start, rear air suspension, auto LED headlights, auto wipers, leather trim and a space-saver spare.

Jaguar Land Rover's 'InControl' media system is presented on a whopping 12.3-inch screen and, as ever, is steadily improving but goes without Apple CarPlay and Android Auto. The sound is, as you might expect, pretty good.

Our car had a few options fitted. 'Active Safety Pack' (see below), carbon-fibre trim ($3470), driver and passenger memory pack ($3210, including perforated leather trim), 20-inch wheels upgrade ($2790), cold-climate pack ($2540), illuminated metal treadplates ($2110), privacy glass ($950), 'InControl Protect' ($630), configurable interior lighting ($540), nets and rails ($390 and $320 respectively), extra power socket ($240) and 'InControl Apps' ($100). Most of it is cosmetic and/or unnecessary and took us to $158,950.

And there is still a plethora of boxes to tick.

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.

The First Edition ships with Jaguar's 3.0-litre twin-turbo diesel V6. Good for 221kW and a prodigious 700Nm, power heads to the rear wheels via an eight-speed ZF automatic.

With all that power and torque, the XF Sportbrake cracks 100km/h from rest in 6.6 seconds.

The air suspension means you can tow up to 2000kg with a braked trailer.

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.

Jaguar claims a combined-cycle figure of 5.9L/100km. Our time with it was mostly shuttling around the suburbs with a couple of highway runs and we managed a respectable 8.3L/100km.

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.

There's no getting away from the size and heft of the Sportbrake. Where a four-cylinder sedan comes in under 1600kg - not bad for an almost five-metre-long car - up here at the top it's well over 1800kg. With big wheels and a long wheelbase it's not going to win any wards for manoeuvrability, with a big turning circle and a length that's challenging to shopping centre car parks.

The 3.0 V6 twin-turbo is a fantastic unit. It can be a bit noisy when cold but it's super smooth and with all that torque it crushes overtaking with little need for advanced planning. The Sportbrake wafts along, lazily turning over in traffic and keeping the vibe calm.

Despite those big wheels, the ride is excellent. Even when in Sport mode, it's a rare bump or surface that will cause drama. It's very comfortable and very quiet, almost to the level of the XJ limo.

If you do fancy a bit of amusement, the V6 and well-sorted chassis are ready to play. In reality, Sport mode is where both myself and my wife left the car the whole time we had it. Both of us found the steering a little too light and preferred the more lively throttle response. The XF features torque vectoring using the brakes and coupled with a well-judged stability and traction control system, it delivers a good impression of a sporty sedan.

But the XF is best when you keep it relaxed. Both in town and in the cruise, it's a lovely, quiet place to be and a relaxing, undemanding drive. 

Only a couple of things were annoying - the light steering we've already covered. The heated windscreen was more reflection-prone so the head-up display could be hard to see in some lighting conditions. And sometimes it beeped for no apparent reason, which I eventually traced to the blind-spot warning.

The XF comes with six airbags, ABS, stability and traction controls, forward AEB, reversing camera, lane-departure warning, and tyre-pressure monitoring.

For child seats you've a choice of three top-tether anchors or two ISOFIX points.

Our car had the $4360 Active Safety Pack, which adds blind-spot monitoring, reverse cross traffic alert, lane-keep assist, adaptive cruise and driver-attention detection. If you were to ask me, this little lot should be standard at this level.

Despite that, the XF scored a maximum five ANCAP stars following assessment in 2015.

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.

Jaguars are offered with a three-year/100,000km warranty with a matching roadside-assist package. You can purchase a five-year/130,000km service plan for an oddly reasonable $2200. Even more reasonable are the service intervals - 12 months or 26,000km (!).