Specialty Dealer Cars Missing

A few nights ago I bought the 1971 Ford Falcon XY GTHO Phase III and the 2010 Mazda MX-5 Super20 from the specialty dealership however they have disappeared from my garage. I am not sure if it is the same issue with the Forza faithful rewards and not completing a save action after acquiring them or if they never came to my garage originally. I wouldn’t even care if I had to buy them again but unfortunately the specialty dealer now just says out of stock and I am not sure when they will come around again. Is there any way I can at least have the opportunity to purchase them again?

Bump, I would like to know the answer to that question as well, Sorry that happened to you man.