Although I have decided to order a 2010 X6 (which is currently being built in South Carolina), I have driven a 2009 X5 diesel, 2009 X5 3.0 and 2010 Cadillac SRX. No contest. The SRX is simply not in the same league as the X5...at least not for someone who really appreciates a dynamic driving machine. I am sure that Cadillac will snare plenty of potential RX customers away from Lexus, but in no way can it begin to compete with the X5. Of course, I am sure that politics will get in the way, and the car mags will rave about the 2010 SRX. But as someone who used to write for and review products for a high end audio magazine for 12 years (Stereophile), I can tell you that what you read in any enthusiast magazine review may not be as unbiased as one would expect.