I'm also considering the 530xiT. I have the X5 4.4 2001 and its nice. However, its getting older, and I really like the newer electronics in the 645. I got a 2005 645 this year and have really like it. The rumors of the next X5 are too scary to me to wait.

My only concern with the 530xiT is the engine. Compared to the 4.4l V8, it doesn't have the power that the X5 does. I drove one this weekend and found that it handles better than the X5. It doesn't have the same power or throaty roar. THe acceleration seems close on paper, but not from the drivers seat.

Am I right to be concerned? Is it a reasonable choice?

...yellowdog