Ok- most on this forum have owned their X5's for some time. IF you could change a thing or two, knowing what you know now, prior to taking ownership of a brand new X5 what would it be?
The answer should be something that is readily available as a solution to a potential future problem, and not a fictitious ' I would add brakes that never need changing'.
For example, we all know the potential for plastic parts to fail and that there are aftermarket metal replacements available that are less likely to break, such as in the cooling system etc....
So what would you nip in the bud ahead of time knowing that you could possibly avoid a future problem by doing so, knowing what you know now from your experience?