For anyone that is interested (no affiliation with the seller) but these are pretty cool sports seats that could be refreshed with new fabric. Apparently came from an '86 Playboy Cup car. If I didn't have leather sport seats I'd be all over these.

https://www.ebay.com/itm/Pinstripe-P...09Y:rk:11:pf:0

 

FWIW, Cup Cars never had sport seats, let alone two.

The passenger side of a Cup Car usually has a normal, script cloth comfort seat. Most times it was replaced with another motorsport seat, or simply left empty.

That said, pinstripe sport seats are rare. They were available in most models, and are often found in the '88 Carrera Clubsport.