My understanding is that BMW is trying to keep a clear delineation between the X5 and the X6 -- with the X6 obviously being the sportier of the two. If that's true (and it makes sense), don't expect the X5 to get the bi-turbo engines. That is, of course, unless you're talking about an X5 M.

Juan

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Whenever I text "Barack," my phone suggests the word "Capable." I guess my my phone IS pretty smart.