i think thats just distortion from the wing mate, my x5 wing is very flexable, as are most others.
my wing is cut roughly the same as chris's on that picture and when going around high speed corners you can actually hear my wing rubbing on the tyre because it is flexing!
the wing mounts are spaced out, i presume only to reduce the flexing that the x5 gets and it looks very minor, and could be tricking the eye to think it is the rest of the car flexing?
i think it is just the wing though, i would'nt look too far in to it
