I have been throwing ideas around inside my head about putting a diesel in the VX if my motor even gives in, figured i would go with a N57D30T1. comes from the 2011- BMW X3 F25 X3 xDrive35d and 5 and 6 series.

306 hp 460 lb-ft would go bad with a 6 speed behind it

http://en.wikipedia.org/wiki/BMW_N57