Wow what a weird post! i have both, a 2009 911 PDK with 10K miles, thinking HARD about a F430, but just got my X5M for 80K new 2011 loaded only option missing I think was the rear seat entertainment. Great car, I am driving the X5 M mostly, it just makes me smile. 3 weeks ago my brother came out and drove both. He was in love with the 911. Its violent in sports plus mode and 30mpg!!!

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2011 X5M
2006 X5 4.8is
2009 Porsche 911 PDK