Due to the complicated nature of the previous system with the timeline and custom event leaderboard for levels, moderators decided to rework the current leaderboard to divide it into simpler categories. The division between custom events and the timeline was dropped, but in its place tiers were replaced by the in-game class system (little icons next to car picture in choice menu). We hope this change will make it easier to compete on the leaderboard and give more options for doing runs.

The way cars are now divided can be also found in spreadsheet right below

https://docs.google.com/spreadsheets/d/1ESg_vmiPUYRaRPFNvE2PqFW_F9YVQM9FoV8ULboaBXI/edit?usp=sharing