I remember them in a friends car back in high school .I think it was a lumina if i remember correctly?

i actually have a few brochures showing them, but i have yet to actually see them in a vehicle...

I had a 73 Chev Laguna and brother had a 76 Pont. Lemans Olympic edition and both had the swivel buckets.
I have heard from some older GM employees that the swivel seats were discontinued when air bags became optional because the seats were not stable enough when the air bag deployed. Not sure if its the real reason or not.

"swivel seats were discontinued when air bags became optional because the seats were not stable enough when the air bag deployed."

So that may be the reason...... They were realy cool back then, I can't think of a feature today that I like as much. Maybe it was just being a poor 16 year old and having a $250 car with swivel seats was the influence, glory days.....