I'm new to the group. I was just recently gifted two Opel GTs, one is a '72, the other a '73. Both have been in garages since 1992. The '73 is a bit nicer and didn't have raccoons living in it, so I think that's the one I'm going to work on getting running first (it's the one in the back in the photo).
The story on them is that I got them from a woman here in Alameda, CA who has several rental properties that have been in the family for years. One of the cars was her daily driver during college in the '70s, the and other one belonged to her father. She needed them out of the garage because she wants to rent the garage to a tenant, so she gave them to me because I was brave enough to evict the rodents, and deal with the DMV. I've always liked these cars, so I'm exited to get them running. I know basically nothing about Opels specifically, but I have plenty of experience building old cars. Should be fun!