The performance oriented diesel range unvieled by BMW


bmw m550 diesel saloon
BMW will introduce a new range of performance-orientated M division-developed diesel models later this year.  The new oil-burners will get an initial public airing at the Geneva motor show in March.

The four-wheel-drive X5 M50d and X6 M50d will arrive in global markets this June. Rear-wheel-drive M550d saloon and M550d Touring models engineered specifically for right-hand drive markets are tipped to go on sale in October. These four cars represent an M division first, with all running a newly developed version of BMW’s 3.0-litre, six-cylinder diesel engine.

bmw m550 diesel saloon rear view
The new powerplant is fitted with a triple-turbo induction system that BMW sources suggest is set to revolutionise the efficiency and performance credentials of traditional combustion engines, in both diesel and petrol formats.

The new models will form the basis of what BMW has dubbed its ‘M Performance’ range. They have been conceived to slot into their respective line-ups between the top-performing standard model and full-blown M model in terms of outright performance, dynamic ability, equipment levels and price. In the case of the M550d saloon, this is between the 550i and M5.

bmw m550 diesel saloon logo
The new M-developed diesel engine comprehensively outguns BMW’s widely used twin-turbo 3.0-litre in-line six. It develops 376bhp between 4000 and 4400rpm and a sturdy 75.3kgm of torque from 2000 to 3000rpm.







bmw x6 diesel saloon
These figures are 74bhp and 14.2kgm higher than those of the most powerful version of BMW’s existing twin-turbo 3.0-litre six, as fitted to the 740d, giving it a spectacular — by diesel standards — 126bhp and 25.1kgm per litre.







Although 176bhp shy of the M5’s twin-turbo 4.4-litre petrol V8, the M550d saloon boasts 6kgm more torque.









bmw tri turbo engine
In each of the M Performance models, the new engine is mated to a beefed-up version of the existing eight-speed automatic gearbox and, for left-hand drive markets, a specially tuned version of BMW’s four-wheel drive system. Together, this set-up gives the M550d xDrive saloon 0-100kph acceleration of 4.7sec — just 0.3sec slower than the new M5.






bmw x5 diesel saloon
Because of the M550d xDrive saloon and Touring’s lack of right-hand drive compatibility, UK versions will be rear-wheel drive only — resulting in what BMW insiders say is a “70kg reduction in kerb weight”.








bmw x5 diesel saloon rear view
This new range of BMW’s also come with EfficientDynamics fuel-saving features that include a stop-start function, brake energy recuperation and on-demand function for engine ancilliaries.

M division has also provided the M550d xDrive saloon, 550d xDrive Touring, X5 M50d and X6 M50d with unique steering ratios, chassis settings and, in some instances, chassis components conmensurate with their M-car siblings.

Each M Performance car will get subtle styling changes to differentiate them from their standard and M-car counterparts. The interior of each car has also been given the M treatment, with unique stainless steel sill plates, leather-bound dashboards and M-specific steering wheels and seats.

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