I recently restored an '89 Par Car and used mid-80s Club Car seats on it. I have plenty of pics posted in this restoration thread:
https://buggiesgonewild.com/showthread.php?t=184216
The front seats were just about the perfect size. However, if you are going to use these are the back note that the rear of the Par Car is just a little bit more narrower than the front. Even though the front seats are perfect, those same seats on the back hang out over the each just a bit, perhaps an inch. No one can tell the difference, though. To get the hand rails on, though, I had to install spacers on them so that they stick out and away from the body just a little bit to clear the wider seat. Again, this is not noticeable to anyone who isn't aware of it.