Trackmania from 2020 is getting a new season to match April, which also introduces a whole host of new content. The trailer gives you the overview here and shows directly the new content, which you can now try out in the game.
The Spring 2023 campaign features 25 new tracks, 100 additional medals and a seasonal prestige skin. In-game enhancements also include improved club creation and 150 new building blocks for the track editor
The content has already been patchedon 1 April 2023, which means you can get started and try them out straight away. The new track modules in particular will also quickly provide additional supply from the community.