Since series 77 was the last festival playlist in forza horizon 4 it would be cool if forza could let players re play the older playlists to unlock cars they missed.
I know the majority of rare cars are already in the horizon backstage minus the quartz cars.
Great idea 
This is such a no brainer, people have been asking this since the end of new Festival Playlists in FH4, what we got was the Backstage, which feels like a pretty unpopular workaround. I really expected them to introduce some kind of replay function with the end of FH5, as people have been asking to replay the Playlist with this title too, but we got the same old Backstage Passes again.
There is very likely nothing going to happen anymore, we can only hope for FH6 to do a better job.
i agree forza should let players replay the old festival playlists on FH4 it will be so much fun so players are not stuck doing the same weekly things every week.
I missed the Sorel-style winter boots from that playlist in 2021 or so, Iād love to get a chance at them in a winter playlist re-run.
Obviously if they could set the old playlists on repeat it would be really nice.