Discussed when it was on Craigslist in Tampa http://www.v8buick.com/showthread.php?305026-Pilot-1970-GS-455&highlight=pilot+car
You can delete yourself, just select "edit" and then delete your first post and the whole thread will go away.
Seen on Ebay an original add showing a couple standing next to a red 70 455 convertible. Wonder if this car was used in the photo shoot because it would be really cool if it was.