I have two Ford Capris.
Found the Capri barn find. When it was ready, I went to adding it to my garage. Before exiting to free roam, I clicked “view car”. While checking the car out, FH2 crashed.
I rebooted and kept playing. The next time I visited my Barn Find menu, the Capi was still there waiting to be picked up (even though it was already added to my garage). Bonus car!