Joel,
Somewhere in a previous post an qwner put Corvette seats in his P ca. I read the article and although the result appeared satisfactory it seem like a lot of fabricating and fitting went into the job.. A good upholstery person can modify you existing seats . It all depends what you are trying to accomplish. A Pantera seat, IMHO, will never win a plaque from the Orthopaedic Doctor's association.