
A lot will depend on the individual car; as you know Pantera's are as individual as the people that drive them and many have aftermarket seats of varying style and quality, but even then it's pretty easy to overcome or change them. I put Corvette seats in my '74 and to gain room simply threw away the sliders and bolted the driver seat to the floor. Heck the wife didn't want to drive the thing anyway

Good luck with your search and welcome to the PIBB.