Im posting this for my son as I am over his account, but recently all of his cars are missing. There were about 10 cars in single play from in game points/score that he purchased. All gone. Any ideas? We moved and he had not played for a few weeks, but thats the only thing I know for sure. Is it possible for friends to get cars from your garage?
ok first question, do this on your xbox home screen, settings, system, storage, Hover over HDD (or main storage system) Hit Y, select clear system cache hit yes. (do this about 3 times if necessary). IF that does not work then do the thing till HDD and select HDD, then hit games and apps, select Forza Horizon, now if you see any yellow (!) then delete those files. (NOTE if all is Yellow(!) then you will need to delete all the data–ONLY do this if it does not work) then try to see if it works. Now the second question, friends and car club members ( if he is in them) can get cars from your garage, if it is shared with club garage though.
hope that helps:)