Editor’s note: The following story has been revised to make clear that BMW M Manager Brian Watts did not himself confirm the diesel program has been approved but is only under consideration. However, ranking BMW sources have repeated their confirmation that what is tentatively being called the BMW 550dXM will be publicly revealed in spring 2012.
BMW will introduce a new high-performance diesel-powered 5-Series model next spring that will expand the German maker’s vaunted M division, TheDetroitBureau.com has confirmed, with the triple-turbo V-8 oil-burner set to also be used in a variety of other BMW products, likely including its X-series sport-activity vehicles.
Rumors of the diesel M have been circulating for several weeks, but TheDetroitBureau.com has confirmed details with a variety of BMW sources who say the maker wants to prove out the potential of the high-mileage technology – taking advantage of a variety of new technologies, including the unusual triple-turbocharging system meant to eliminate even the most minor turbo lag.
The new model is likely to get the unusual designation of either BMW 550dM or 550dXM, the latter referring to its all-wheel-drive system. With rare exception, most models produced by the Bavarian maker’s performance sub-brand flash the vaunted “M” first and foremost. But the alternative nomenclature would reflect the unusual powertrain under the hood of the 5-Series BMW.