Recently purchase CPO with only 28K on it. Absolutely love it. You can't beat BMW CPO - they had the car ready in mint condition, the warranty is excellent, and I still have over 20K left on included maintenance and 0.9% financing (unheard of for CPO!). The X5 handles like a dream and I personally think this model is better looking than the redesign in 2007. The interior is top notch and the power seems way stronger than the HP rating - that speaks to great engineering. No rattles, solid like a tank. I'm actually getting up to 26mpg on highway trips and 18mpg average overall.
The best thing about this car is that it puts a smile on my face every time I drive it - something I didn't get with my last Acura.
The blower seems to stay on pretty high even when the temp is reached on auto climate control. A lot of brake dust, but not really big deals.
† Edmunds.com received the highest numerical score in the proprietary J.D. Power 2014 Third-Party Automotive Website Evaluation Study℠. Results based on responses from 3,381 responses, measuring 14 companies and measures third-party automotive website usefulness among new and used vehicle shoppers. Proprietary study results are based on experiences and perceptions of owners surveyed from January 2014. Your experiences may vary. Visit jdpower.com.