once when i was in need of a subcompact i found 1 that was fastback too: the pinto. https://www.hemmings.com/blog/2017/1.../#&gid=1&pid=2
did i say that am sold to fastbacks? it was the 1st on my quest. so it has that in common with the xf.
and shares also that it was wrongly criticized, just to learn several years later that what was told wasnt right.
(mine was light blue)