Hi Paul
If you ignore tinting variants, there are two styles of windscreen for the Coupe/HPE and Spyder (Zagato) (from what I have experienced and read). The early cars all had a bonded windscreen, so removal is a pig and requires a knife and lots of swearing (my experience anyway). At some point on later cars they reverted to a removable reusable rubber seal which allowed much easier removal. The windscreens look almost identical, but the ones for the reusable seal are just slightly smaller overall.
No experience on the sedan, and no idea if they are the same shape etc as the coupe ones. Haynes manual suggests it had a reusable one.
Peter