I’ve been through the same frustration with the NFS Edition cars in Most Wanted iOS. From what I’ve noticed, they usually appear in the dealership as part of time-limited events, often tied to special updates or seasonal challenges. If you don’t check the dealership during those specific windows, it’s unfortunately easy to miss them. They don’t always reappear straight away, which makes it feel as though they never show up.
As for the Event Organiser challenge, the counter for 250 gold medals doesn’t display in the same way smaller challenges do. The only way I’ve been able to keep track is by roughly estimating based on how many races I complete daily. It’s not very transparent, but the achievement does eventually unlock once you cross that threshold.
If you want to stay on top of limited-time content, it helps to follow communities that track game events and share tips. I found some useful resources through Bright Sparks, where you can learn more
about strategies for managing game progress and spotting limited offers before they expire.
Hang in there, it’s a grind, but both the NFS cars and the Event Organiser achievement are achievable with a bit of patience and timing.