Looks like a 4 dr. sedan front seat (Rounded rear corners) It will fit and work fine, but not correct.
All I can tell you is that my coupe came with a seat like that and I was told it,s a sedan seat. confused? me too.
This is what a coupe seat looks like,... and here's a good thread on them. http://www.jalopyjournal.com/forum/showthread.php?t=574099
I thought it was a sedan one,just wanted someone else's view as I am buying a new spring base and saw the coupe and sedan are not the same. Thanks guys!