'70 Mustang Convertible, 302/3-sp stick, returning to earth
 

The seller claims it's only been outside for a couple years, but it looks like it's been there for quite a while longer. Would be a neat car to restore if the underbody isn't unsalvageable (sounds pretty rusty judging by the description).

Link to 1970 Mustang Convertible auction

https://i.ebayimg.com/images/g/YCUAA...Qb2/s-l500.jpg

https://i.ebayimg.com/images/g/W2kAA...QbT/s-l500.jpg