Yesterday we saw launched the new SLK 250 CDI (Diesel) and now it seems that BMW is also taking steps in this direction as well. According to TheDetroitBureau.com’s inside sources, the 5 Series will receive a diesel model tuned by the automaker’s M performance division. (Note: We want to make clear that BMW M Manager Brian Watts did not himself confirm the diesel program has been approved but is only under consideration.)
In the past we have heard of the 550dXM, but now The Detroit Bureau has found out the car will get a triple-turbo V-8 oil-burner that will be used in a number of other products, especially in the X series of SUVs. The naming of the new car reveals that it will be offered as an all-wheel drive, though we expect this is an optional extra. The same sources have repeated their confirmation that what is tentatively being called the BMW 550dXM will be publicly revealed in spring 2012.
Despite the fact that a name like “550dXM” suggest that it would be offered with a 5.5-liter engine, according to the same report, the new model will come fitted with the current 3.0-liter diesel, but with significant modifications, including a new cylinder head. It will make use of a variety of advanced technologies, including direct injection and BMW’s Valvetronic system, designed to optimize the function of intake and exhaust engine valves. The engine will make use of that new tri-turbo configuration that’s expected to debut on the X3 M, which uses a third turbocharger that is powered by electricity to reduce lag even further. Rumor say thet peak ponies will be down from the M5′s 560-horsepower output, though it is still likely to stay about 500.
The Detroit Bureau states that various BMW sources say the 550dXM will be publicly revealed in spring 2012, so stay tuned for more details.