No doubt they're fine cars, but to me they're a bit pointless.
Want a large 5 door sports saloon? Buy an F10 MSport 5 series.
Want a large crossover sort of 4x4 style 'thing'? Buy an X6 (which are really growing on me).
Where does the GT fit into the range? I might be missing something perhaps? Maybe an X6 is far more money?
EDIT: Either way, you selected the right engine :hihi I think they have upped the power a bit too :thumbsup
EDIT 2: Nope, similar money by the looks of it.
5 Series GT and
X6. Albeit 1 year apart in review terms, surely the differential should be more considering the X6 has the better engine?