Dirt

Dirt (formerly called Mud) is a TrackMania Nations Forever map style founded and developed by Riolu. It became much more popular after its founder was caught cheating in May 2021. The most known thing about the Dirt style is that there are absolutely no bugs or geardowns that can happen. Some of the most popular Dirt maps include A02-Race, D15-Endurance by Nadeo, and DirtTrickzZz by John_Michaels2.

Trivia
Little known fact is that the Dirt style was initially called "Mud", but the name changed in July 2009 when Nadeo had a horrific Mud accident, and was forced to rename the style to "Dirt", as to not give themselves PTSD of the events that had unfolded prior. However, being careful on Dirt is one of the most important things. If your car exceeds the Dirt speed limit (160km/h), you get a giant acceleration penalty of 190 km/h. After this penalty you will no longer be able to drive for 24 hours, and your game will close, refusing to open for the duration of these 24 hours.