I think if you bored with your X5, just sell it and move on to something that better suite your need or taste. Beside that, it's kind of strange that you bought an X5 that you'd like at the beginning, to me it seam obvious that when you first bought it you did it for the wrong reason otherwise would still like the truck. No offend here I'm writing this with a bit of humour, but to me you look like a spoiled person that is in the mid 40 crisis. Lol

I mean you got the top of the line X5 and now it's like you dont like it anymore, here we call this the rich person disease, some other would say it look like a bipolarity problem, where you have up & down ( dont get pissed, one of my best friend has been diagnosed and since he's on medication he is feeling much better ).

I will end-up by saying put the X5 in the garage for 2 weeks and go rent POS, Ford or GM or whatever you want and drive it for 2 weeks, trust me you will fall in love again with you X5, if not sell it and call it a day.

Have a good one.