Hi, this is my first post. I was all set to buy a new 08 X5 4.8si back in April, but the salesman (a rarefied honest and genuinely caring salesman whom we've dealt with before on the purchase of our 330xi) told us to wait until the Fall for the '09's because the X6 engines were slated to go into the next round of X5's. He also intimated that they would be upgrading the Xdrive to the improved system that's on the X6, but wasn't sure on that.

We've been waiting and watching the speculation online, and there still is no definitive information. I asked the salesman recently for an update and he's going to get back to me soon. I independently talked with a BMW mechanic who repeated the same news that the '09's will have the upgraded engines. Who knows. BMW is keeping it very secret so as not to kill sales of the '08's still out there.

I will post any news when I hear it.