Are you going by the digital gauge or actual odometer reading based on fill up to depletion? Digital can be very off.
2013 BMW 550xi Sedan (AW/Black): Current
2011 BMW 335d Sedan (Blue Water/Black) : Retired
2008 BMW 135i Coupe (BSM/Red) & (White/Black) Retired
2007 BMW Z4 M (White/Red): Retired
2003 & 2006 Cadillac CTS : Retired