IMO, there is only one seat that i have sat in from a new edge car that has pleased me, and thats one from an 03 cobra... You could get a couple of em, but im sure they get pricy.
My advice would be to pick up a set of early GT Sport seats... Very nice looking, and one of the most comfortable and supportive mustang seats my chubby rump has sat in - ask bullitt482, i believe he has sat in my car. the svo seats are even better!
What color is your interior/exterior?
heres a few pics i just googled... there are many better ones floating around, and as soon as i find em, i'll post em, or maybe just take a couple shots of mine tomorrow.
Ignore the porno red color...