Thank you for your comments. I also want to credit and thank the pano people at Adobe. I shot the house with some premeditation and care, but the cars and their blending into the scene were gifts. I had shot twice as many frames or so from that spot and the first pano I made was without cars, in spite of the heavy traffic, and generally lacking. I did chose those models over a couple of others, but I just threw seven frames in the hopper set on Reposition and CS5 shaped them like that.
Bruce