Dealers will CPO their demo / loaner etc cars and sell them as "new" cars. I guess the question I would of asked her was -How many miles did the car have when you 1st bought it?
It sounds like an honest mistake.
Current: 2016 F10 535i xDrive AW w/ Black Dakota, ZMM, ZCW, ZDA, ZDB, ZPP, 688 & Black Grills.
Retired: 2011 E92 M3 -AW
....ED April 29th, 2010
Retired: 2007 E92 335i -Space Gray.....ED Oct 19th, 2006