These are the stock leather seats from a 1995 Miata. I don’t know what else they’d fit besides another Miata. They aren’t in that great of shape, with some ingress/egress wear on the side bolsters (driver’s side is much worse than passenger’s, obv).
But… They would make great seats for building a GT4 cockpit setup. Why? because they have headrest speakers and bass shakers built into the seatbacks (bass shakers work, headrest speakers may need replacing, they were never very loud in the car). Stock sliders are included.
Driver’s seat: Asking $30
http://users.adelphia.net/~neurokinetik/drivers_seat.jpg
Passenger’s seat: Asking $50
http://users.adelphia.net/~neurokinetik/passengers_seat.jpg