BMW's tri-turbo diesel may also make for a 550dX

New triple-turbo diesel unit capable of making up to 400 PS (294 kW / 395 bhp) will first be introduced in the upcoming X6 xDrive50d.

Source: http://feeds.worldcarfans.com/~r/worldcarfans/Jxfz/~3/Vtjla5hrOEM/bmws-tri-turbo-diesel-may-also-make-for-a-550dx

Martin Brundle Gianmaria Bruni Jimmy Bryan Clemar Bucci Ronnie Bucknum