Mike 
2009 BMW X5 SUV xDrive48i 4dr SUV AWD (4.8L 8cyl 6A)
I've been had!
 I was seduced by its good looks and big engine. Our X5 has been a maintenance nightmare. Something very expensive fails on this vehicle about once every 6 months. Out of warranty fixes has cost us about $5000-$6000 per year since owning it. The latest news is it failed to pass smog due to value leaks. My BMW tech told me this is common for this engine. Well, now I have to spend another $6000k ($500 in parts, 45 hours of labor!) to replace the value seals just to get it to pass smog. This is my second and last BMW.