I picked up in Sept an '08 4.8 CPO with only 16K miles coming off of lease from Beverly Hills BMW. Haven't had any issues. It has everything except HUD and Active Steering. The V8 is awesome. I've only had it 3 months but love it so far. I had an '01 X5 3.0 103K miles that was totaled Labor Day weekend that was in perfect shape. You keep these cars serviced, etc and they last forever. Definitely go the CPO route.