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BMW 6 Series GT 2017 review

Autocar logo Autocar 12/10/2017 Richard Bremner

BMW 6 Series GT 2017 review

BMW 6 Series GT 2017 review
© Autocar

What is it?

This car replaces the 5 Series GT, a large five-door hatchback that – to Western eyes, at least - was one of BMW’s less happy models.

This new Gran Turismo has joined a new model grouping as a 6 Series and has been redesigned, taking into account customers’ views of the 5 GT's good points and what project boss Claus-Otto Griebel tactfully calls its "less good points". More of which shortly.

Related: BMW 6 Series Gran Turismo Teaser (AutoMotoTV)

The 6 GT rides on the same wheelbase as the latest 7 Series and has grown 8cm in length, most of this devoted to a boot that was one of the previous car’s less good points. Its roofline is 2cm lower and the rear deck lid sits 6cm lower.

That realigned tailgate is intended to tackle another ‘less good’ feature, which was the appearance of the 5 GT’s generously dimensioned back end. You still wouldn’t call it slender, but it looks less like a wall of steel when you’re following it.

BMW has also ditched the complicated boot-cum-tailgate arrangement and ingeniously built the electric hatchback struts into the tailgate itself, usefully widening the load bay’s mouth.

BMW 6 Series GT 2017 review © Autocar BMW 6 Series GT 2017 review Despite the lowered roofline, the raised seating position of the 5 GT remains – it’s 6cm higher than in a 5 Series saloon and is a feature liked by buyers, along with the ample cabin space and driving comfort.

Rear head room is unaffected despite the sleeker roof. Besides the styling, improving the handling was another priority for the new generation of this slightly curious machine, with Griebel implying that the task of making it corner like a BMW was considered a satisfying challenge by the chassis department.

Their mission was eased by an average weight reduction of 150kg across the range and suspension systems that are a mix of the latest 7 and 5 Series hardware.

This can include four air springs rather than the standard rear self-levellers, active roll control and four-wheel steering.

BMW 6 Series GT 2017 review © Autocar BMW 6 Series GT 2017 review A lift-reducing active boot spoiler contributes to high-speed stability, while further aerodynamic refinements include active radiator grille flaps, a front air curtain and turbulence-calming air breathers for the front wheels.

The result is a drag coefficient that tumbles to an impressive 0.25 from 0.29.The UK engine line-up is pretty simple, consisting of a 255bhp 630i petrol, a 335bhp xDrive all-wheel-drive 640i and a 261bhp 630d, all fitted with an eight-speed paddle-shift automatic transmission. 

What is it like?

This was a big car before and is an even bigger car now, but because its interior is more finely crafted, it feels cosier and more inviting. The 6 Series GT is intended as a machine in which four can travel all day in considerable luxury and, on ambience and seat comfort alone, it scores highly, especially if a panoramic roof is fitted.

Well over 300 bhp means more than enough go, while all-wheel drive ensures that it’s confidently transmitted to the road. You’ll need to rev this engine to hear the six cylinders that you’ve paid for, with their mildly rorty outpourings quite a contrast to BMW’s silken turbine sixes from the past.

© Provided by Haymarket Media Group The smooth-shifting eight-speeder means you’re only going to find this out if you stretch the GT’s dynamic muscles, though.

Aboard the well-girded test car, which came with a so-called Executive Drive pack that includes four air springs, active anti-roll, adaptive dampers and active steering, the 6 GT proves considerably more agile, and willing, than the 5 GT.

It can feel big when braking and turning into a tight bend, but the suspension contains its mass well.

More relevant for most potential occupants is the ride, which is excellent in Comfort mode and decently supple in Sport. This remains the case when the GT is cornering hard and hits a bump too – a circumstance that often upsets cars with active anti-roll systems.

Also impressive is the GT’s quietness at speed, BMW having gone to some lengths to achieve this through aerodynamics and sound deadening, particularly of the boot, which is apparently as library-like as the cabin itself.

BMW 6 Series GT 2017 review © Autocar BMW 6 Series GT 2017 review As you’d expect, there’s a huge range of options, with bundles including Rear Comfort, M Sport Plus, Premium and Surround Sound packages, as well as extensive connectivity, chassis, trim and electronic protection systems.

Worth noting is that this newcomer to the 6 Series range starts at much lower prices than the 6 Coupé and Gran Coupé.

Should I buy one?

This is a car that offers quite a specific set of advantages, as its predecessor did. It’s exceptionally roomy, versatile and qualifies as a genuine GT in that it’s capable of consuming big mileages with potent serenity.

BMW 6 Series GT 2017 review © Autocar BMW 6 Series GT 2017 review True, it’s hardly as elegant as a grand touring Aston Martin, but it’s easier on the eye than the 5 GT. It’s also well finished, very comfortable, secure and, with its slightly higher seating position, provides a little of the imperious feeling you enjoy when occupying an X5.

The difference, this time, is that it drives more like a BMW should, or it certainly does with an assortment of the dynamic option boxes ticked.

The bulk of the 150,000 5 GTs sold over the past eight years went to back-seat-loving China and South Korea, where they’ll likely enjoy this version even more. In the UK, the 6 GT makes a slightly oddball choice, but those tempted by its not insubstantial assets face fewer styling and dynamic penalties.

BMW 640i xDrive Gran Turismo M Sport 

© Provided by Haymarket Media Group Where Lisbon, Portugal; On sale November; Price £57,570; Engine 6cyls, 2998cc, turbocharged petrol; Power 335bhp at 5500-6500rpm; Torque 332lb ft at 1380-5200rpm; Gearbox 8-spd automatic; Kerbweight 1835kg; Top speed 155mph; 0-62mph 5.3sec; Fuel economy 35.3mpg; CO2 rating 183g/km; Rivals Audi A7, Mercedes-Benz CLS, Porsche Panamera



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