The only really offensive part of this whole deal is that the house comes with a car collection.
What kind of candy-ass poser lets someone furnish a car collection with no input?
If you like cars, and you have $30m to spend on a collection, surely you figure out on your own which cars you'd like to add. If you don't like cars, why bother with a collection?
It'd be like, I dunno, telling an actress that her new apartment comes with a closet full of clothes, for which she has to pay or has no say in it. Or telling an art enthusiast that you hope they'll like the paintings, again, no choice of which ones, but you're paying anyways.