I'm with you rosstopher on the 'self replenishing drinks cabinet'. A quick google of the phrase reveals it is solely a Overfinch/H&H concept. I can only conclude that it is some form of SatNav/cashpoint linked development of Mercedes automated safety systems that drives the car without the need for a driver.
Perhaps, in the same way that you can select personalities (Mr. T, Ozzy Osborne, 'The Queen' etc.) to guide you with your SatNav, you can select personalities to replenish your booze stash for you. Delia Smith for Sundays, Pete Doherty or the venerable Mr. Osborne again for a Friday evening. Though the combination of Pete Doherty and usual SatNav issues could lead to the car stocking itself from non-official sources.
'Inhale at the next junction. Snort, quaff, you have reached your destination - you are completely **********'.