Yeah, the e53 X5 4.4/4.6/4.8 would be better choices IMO. But, more power=more money.
Ummm, the e60 550i is going to be at our dealership by the middle of next month. We have 3-4 sold.
Not only do they have a e60 550i, but the new e65/66 750, as well as the new e63/64 650Ci.
Interesting, keep us updated.