Frank 
2014 BMW 6 Series Convertible 650i xDrive 2dr Convertible AWD (4.4L 8cyl Turbo 8A)
BMW Certified Program means, well, Nothing
 I purchased a 2014 BMW under a certified program.  I picked up the car and the service alarms were on.  I returned the car, then the facia wasn't connected and some of the service was not done.  Then I finally got to drive the car and the engine was over 2 quarts low on oil.  I asked for a copy of the inspection report from the service manager, nothing.  I contacted BMW USA nothing.  Buyer beware.  A Certified BMW means, nothing.