I've been wondering about this.
I know in Sandbox mode, we can make building interiors.
But what about the existing buildings?
Especially the ones in worlds.
The one thing that annoyed me most about the Cars game was you just drove around the outside of the buildings, there was no way to go inside them.
So, I was wondering, if we happen to be standing outside the Incredibles' home, do we get to go inside and explore?
Given that we never really saw their replacement home after it got destroyed, I'm curious to see their new home now.
And here's something you may find interesting, this is a part of their house we never got to see during the movie:
http://i177.photobucket.com/albums/w224/ajbckmn/Stars2Sea/Houses/TI/T13_VioletsRoom_BG_zpsaf72013a.jpg
It's Violet's room.