Vehicle mass adjustment. It may adjust the true(vanilla game) mass stat of all vehicles based on their vehicle mass stat of Vehicle Framework. Toggleable in settings.
Fast cargo gizmo. Adds "fast cargo" gizmo to all vehicles in the game, the gizmo assigns nearby things to be transferred to the vehicle's inventory. Toggleable in settings.
Lights gizmo. Adds a vehicle headlight gizmo to some vehicles in the game (movable, with industrial+ tech level). Toggleable in settings.
Honk gizmo. Adds a horn signal gizmo to some vehicles in the game (movable, land type, with industrial+ tech level). Toggleable in settings.