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BMW launch diesel power 6 Series Coupé and Convertible E-mail
Written by Michael Moroney   
Wednesday, 17 October 2007

BMW has introduced a new engine to the BMW 6 Series range at the same time as the model line-up has been revised.

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BMW’s new diesel powered 635d is claimed to be the fasted diesel car on the market. Prices start at E111,450 for the entry diesel model, frugal of what?

The BMW 635d opens up a new sector of the market for BMW by mating the acclaimed twin-turbocharged diesel to the marque’s flagship Grand Tourer.

The launch of the BMW 635d coincides with the introduction of fuel saving and emissions-cutting EfficientDynamics technology to the rest of the 6 Series range to improve performance. The model has also been given a subtle restyling to mark the technological changes.

BMW claim that the new engine is the world’s most powerful production six-cylinder diesel. It claims that no other competitor can offer such frugal motoring  in a Grand Tourer while still satisfying the demands of sophisticated buyers who insist on the best in performance and refinement.

Powered by a twin-turbocharged 2,993cc engine with an all aluminium crankcase and third generation common rail fuel injection system, the 635d comes with an output of 286hp and 580Nm of torque. These impressive performance figures have been made possible by the unique way the twin turbochargers work.

A smaller turbocharger provides near instantaneous response for swift initial acceleration before a larger turbocharger comes in mid-range to provide additional thrust through to the redline. With peak torque available from just 1,750rpm a seamless wave of smooth acceleration is provided for the driver.

The result of this sees the BMW 635d Coupé record a zero to 100km/h time of 6.3 seconds while the Convertible achieves this in 6.6 seconds. Both have top speeds electronically-limited to 250 km/h. However, the Coupé still achieves 6.9 l/100km on the combined cycle and a CO2 emissions figure of 183g/km, while the Convertible retains near identical figures recording 7.2 l/100km and 190g/km.

 


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