I took the eom steel wheel off today and removed the two screws connected to the rotor. The vintage rims fit wonderfully flush. I saw indentations on the back of the "new" rims. Perhaps the tire shop and myself did not line these up as we should have. But I think I'll just remove the unnecessary screws and keep them in a "just in case I need them after all box". Hopefully I can get my car into the shop next week to swap the tires\wheels out. Maybe by then I can figure out how to post before and after pics of the Volvo. Many, many thanks for all the excellent suggestions. Saving $200 worth of parts is a great feeling!