Along the flanks, there is a more pronounced shoulder, added tumblehome to the glass area and an air breather element behind the front wheel arches. The rear gets a shapely new C-pillar treatment, OLED tail-lights and, on the more upmarket models, tailpipes set within the lower section of the bumper. As with the 7 Series, BMW plans five styling packages for the new 5 Series: Standard, Sport, Pure Excellence, M Sport and Individual.
Underpinning the car is an advanced new platform codenamed OKL (Oberklasse, or ‘luxury class’). First used by the new 7 Series, it has been conceived around a combination of materials, including carbonfibre, aluminium, magnesium and high-strength steel. The new 5 Series will shed up to 100kg compared with today’s model, which is a claimed 1595kg in its lightest form, the 520i.
The interior adopts a new-look dashboard that features high-resolution digital instruments and a free-standing infotainment monitor. The design is similar to that in the latest 7 Series, with the same basic architecture, multi-function steering wheel, switchgear and materials.
The subtle increase in external dimensions is reflected inside, with added accommodation both front and rear. BMW has placed great emphasis on improving the comfort and refinement of the 5 Series. New seats with softer cushioning are used up front. The bodyshell also receives new sound-deadening material.
From the outset of UK sales in early 2017, the engine line-up will include various versions of BMW’s latest B47 diesel and B48 petrol four-cylinder units - all in 2.0-litre form, as with today’s model.
They will be joined by BMW’s recently unveiled B57 diesel and B58 petrol six-cylinder engines, which also use a standardised 500cc individual cylinder capacity for an overall volume of 3.0 litres.
The new 5 Series is also earmarked to receive a newly upgraded 444bhp 4.4-litre V8 petrol engine, recently launched in the 750i.
Other engine options will include a quad-turbocharged version of the new six-cylinder B57 diesel, which will be a successor to the M550d. Set to replace the existing tri-turbo N57 engine, this advanced 3.0-litre unit is said to adopt electrically driven turbos to bolster reserves beyond the already stout 376bhp and 545lb ft of today’s model.
BMW also plans to offer the new 5 Series with the plug-in petrol-electric powertrain used in the 330e, 740e and X5 The hybrid set-up mates a 2.0-litre four-cylinder petrol engine with an electric motor mounted within the gearbox and a lithium ion battery sited in the floor of the boot to provide an electric-only range of more than 20 miles.
The new 5 Series flagship will be the M5. Set to offer a choice between rear-wheel drive and optional four-wheel drive for the first time, it is tentatively due to be unveiled at the 2017 Geneva motor show. It will feature a developed version of the 4.4-litre V8 petrol engine.
Standard 5 Series models will receive either a standard six-speed manual gearbox or a new nine-speed automatic. The M5 will continue with a seven-speed dual-clutch automatic transmission. As with the new M5, some models will be offered with the choice of rear or optional four-wheel drive.
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