Kieth,
I like them and would recomend getting it if the price is right. Not a family car, or even as teenagers, getting into the back seat was a chore and cramped.
The Old Car Manual Project
http://www.oldcarbrochures.com/new/1.../dirindex.html
has the brochure. It shows that the 302 was na for the XR7. They could have put anything in there though.
Good luck and keep us posted,
Greg