Park it in the garage with one of those big-ass bows like they show on those Lexus adds. I mean come on. Anyone who gives a $50k luxury vehicle to a snotty spoiled white-chick housewife needs to be kicked in the head hard, several times.
OK rant off. But really, aren't those ads condescending in a big way?
Now giving a new Mustang, well that just rocks. Good on ya man for whatever your involvment is.
I say, give her some cheasy broken toy as a gift. Then when she opens it, say that the deal is, she needs to return it to find out what her real present is. Then thow her the keys.