[Rowdy]

they came from mid 80's VW.
I found a guy who had found a pallet full of em never used, but he has since sold them all, so I essentially lucked out in getting them "new" even though they were mid-80's.
I'd bet most VW wheels would fit.
The popular thing about the corrado type is how they are put together. The centers are welded into the outer rim so they are 2 piece. This allows you have a wheel place (like Stockton Wheel in CA) move the centers for you, put the centers on a wider rim, etc., if that was an issue. These things cleared the calipers as it was. My PT has a drum rear so back there it didn't matter much.
I dunno if that info helps or not but let me know if there's any thing else you need to know.