Relative cost of insurance
I moved my policy from my '07 530xi to a '13 535xDrive ... both were pretty loaded (MRSP for the '07 was about $64K and my '13 was $67K) so the relative replacement costs etc were close. I expected to get nailed (after all I'm in NJ + a 6 year newer car + turbomotors etc) but the annual premium increase, keeping all the same coverages, was $160/yr. It's hard to break out my individual per vehicle situation because I insure 4 cars + house + multi Mil $ liability blanket etc.
BTW, I write it thru BMWCCA's 'partnership' with one of the large companies - so when I need them there will be no debate about using BMW repairs and parts vs Joes Bodyshop.
BTW, I'm relocated from the 5 Series . net forum