It's interesting that the cars on the motorway to the south of the building are pancaked (not 3D) whereas the cars in the parking lot next door are 3D. It makes sense, since I guess they need objects to be in multiple frames from a flyover to project them into 3D. It must be a bitch to deal with moving objects and figure out which position to put them in, since the rest of the imagery is generated from multiple frames.